CN107644777A - A kind of high voltage isolator cabinet interlocking device for cable vault door - Google Patents

A kind of high voltage isolator cabinet interlocking device for cable vault door Download PDF

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Publication number
CN107644777A
CN107644777A CN201711020910.6A CN201711020910A CN107644777A CN 107644777 A CN107644777 A CN 107644777A CN 201711020910 A CN201711020910 A CN 201711020910A CN 107644777 A CN107644777 A CN 107644777A
Authority
CN
China
Prior art keywords
blocking lever
bent plate
plate
isolator
chamber door
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN201711020910.6A
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Chinese (zh)
Inventor
吴光武
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chengdu Hengtong Zhaoye Precision Machinery Co Ltd
Original Assignee
Chengdu Hengtong Zhaoye Precision Machinery Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chengdu Hengtong Zhaoye Precision Machinery Co Ltd filed Critical Chengdu Hengtong Zhaoye Precision Machinery Co Ltd
Priority to CN201711020910.6A priority Critical patent/CN107644777A/en
Publication of CN107644777A publication Critical patent/CN107644777A/en
Withdrawn legal-status Critical Current

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Abstract

The invention discloses a kind of high voltage isolator cabinet interlocking device for cable vault door, including isolator operating mechanism, disconnecting switch housing, cable chamber door, it is characterized in that, the isolator operating mechanism lower end connects disconnecting switch housing, bent plate is provided with the isolator operating mechanism, the bent plate outer rim is provided with driving curved surface, the bent plate lower end is connected with blocking lever, the blocking lever is movably arranged in the circular hole of the bottom surface of the isolator operating mechanism, jam plate is fixed with the inside of the cable chamber door, the lockhole to match with the blocking lever is provided with the jam plate.The present invention on isolator operating mechanism by setting bent plate, and when disconnecting switch, which is in, closes a floodgate, the second curved surface compacting blocking lever of bent plate moves down, and blocking lever pins the jam plate of cable chamber door, and cable chamber door can not be opened.This interlocking mechanism is simple in construction, securely and reliably, convenient to install and maintain, is easy to inspection, and manufacturing cost is low, non-maintaining, is easy to promotion and implementation.

Description

A kind of high voltage isolator cabinet interlocking device for cable vault door
Technical field
The present invention relates to power switchgear technical field, and in particular to a kind of high voltage isolator cabinet cable chamber door interlocking Device.
Background technology
High voltage isolator is device for switching important in power plant and transformer station's electrical system, need to be matched somebody with somebody with primary cut-out Set uses.Disconnecting switch is applied to three-phase alternating current 50Hz, rated voltage 12KV inside plant.For high-tension apparatus have voltage and Row load is connected in the case of carrying, and cut-out or conversion line are used.
Its major function is:Ensure the safety of High-Voltage Electrical Appliances and device in service work, play isolation voltage, no Some handover operations of powerful electric arc can be can only be used to not produce, i.e., with cutting off, putting into load current and cut-off short circuit current It is to say that it does not have arc-suppression function;It is divided into by infield difference, formula outside formula and room, is divided into by insulation column number within doors, single Pillar, queen post and three pillar type, each voltage class have optional equipment.The part that has a power failure can will be also needed in high voltage distribution installation Reliably isolate with live part, to ensure the safety of service work.The contact of high voltage isolator all it is open in atmosphere, With obvious cut-off point, disconnecting switch does not have arc-control device, therefore can not be used for cutting off load current or short circuit current, otherwise Under high pressure effect, cut-off point will produce strong electric arc, and be difficult self-extinguish, in some instances it may even be possible to cause arcing (relatively or phase Between short circuit), scaling loss equipment, jeopardize personal safety, here it is the major accident of so-called " on-load drawing disconnecting switch ".
Earthed switch has two kinds:Inspection earthing switchs and high speed grounding switch.High speed grounding switch is that have necessarily to close A kind of earthed switch of specific use of short circuit current ability.After line-to-ground fault is removed, supplied by adjacent working line The secondary arc current of electric forming faulty line, is closed using high speed grounding switch, can eliminate secondary arc current, then quick-speed turning on-off ground connection is opened Close, it is ensured that circuit automatic reclosing can succeed.Inspection earthing switchgear distribution only plays disconnected beside the disconnecting switch of breaker both sides The effect of both sides ground connection during the device maintenance of road;And high speed grounding switch configuration leans on circuit one in the outlet disconnecting switch of transmission line circuit Side, it act as:Folding parallel aerial circuit produces inductance electricity due to capacitance current caused by electrostatic induction and electromagnetic induction Stream;When there is creepage phenomenon or enclosure arcing in enclosure insulator, high speed grounding switch by major loop rapid grounding, Fault current is cut off using breaker.
Interlocking mechanism is that other positions or operation device are necessarily depended upon when making switchgear operation.Power high voltage switch is set It is standby to require to must be provided with mechanically or electrically interlock between disconnecting switch and cable chamber door.I.e. high voltage isolator, which is in, closes a floodgate During position, cable chamber door can not be opened, and be closed;When high voltage isolator is in ground state, cable chamber door can Open, overhauled.This set requirement primarily to prevent the maloperation to high voltage isolator, prevent personnel it is powered enter Enter cable vault to be overhauled and safeguarded, prevent the generation of peril.Current mechanical interlocks is complicated, transmission process It is cumbersome, manufacturing cost height etc..
The content of the invention
The technical problems to be solved by the invention are in the prior art between high voltage isolator and cable chamber door without machinery The defects of interlocking, or mechanical interlocks are complicated, and transmission process is complicated, installation and inconvenient maintenance, and manufacturing cost is high, mesh Be a kind of high voltage isolator cabinet interlocking device for cable vault door is provided.
The present invention is achieved through the following technical solutions:
A kind of high voltage isolator cabinet interlocking device for cable vault door, including isolator operating mechanism, disconnecting switch housing, Cable chamber door, it is characterised in that the isolator operating mechanism lower end connects disconnecting switch housing, the disconnecting switch housing On the left of front end or right side is connected through the hinge the cable chamber door, and the cable chamber door rotates around the hinge to be opened or closed to beat Close, bent plate is provided with the isolator operating mechanism, the bent plate is fixedly mounted on the isolator operating mechanism In operating shaft, the bent plate outer rim is provided with driving curved surface, and the bent plate lower end is connected with blocking lever, the blocking lever Top and bent plate driving curved surface are tangent, and the blocking lever follows the driving curved surface of the bent plate outer rim to move up and down, described Annular boss is provided with the middle part of blocking lever, the blocking lever is movably arranged on the circular hole of the bottom surface of the isolator operating mechanism Interior, the blocking lever moves vertically up and down in the circular hole, and the blocking lever annular boss diameter is more than the Circularhole diameter, Compression spring, the compression spring are coated between the blocking lever annular boss and the bottom surface of the isolator operating mechanism Support the blocking lever to move upwards automatically, jam plate is fixed with the inside of the cable chamber door, be provided with the jam plate and institute State the lockhole that blocking lever matches.
Preferred scheme, the blocking lever top offer notch, and the notch is interior to be provided with roller, the rolling by pivot pin Wheel rotates on the pivot pin, and the roller is cylindrical tangent with bent plate driving curved surface, and the blocking lever bottom is bulb-type Or taper.
Preferred scheme, the jam plate are L-shaped steel plate, and described jam plate one end is welded on the inside of cable vault's door-plate, another The lockhole to match with the blocking lever bottom is offered on end, the lockhole is waist-shaped hole.
Preferred scheme, the bent plate are provided with the first driving curved face part, the second driving curved face part, the first driving curved face part Subsequent corrosion be less than second driving curved face part subsequent corrosion.
The present invention compared with prior art, has the following advantages and advantages:By in isolator operating mechanism Upper setting bent plate, bent plate followed by the rotation of isolator operating mechanism and rotate, when disconnecting switch, which is in, closes a floodgate, bent plate Second curved surface compacting blocking lever moves down, and blocking lever pins the jam plate of cable chamber door, and cable chamber door can not be opened;At disconnecting switch When earthing position, the first surface compacting blocking lever of bent plate moves up, and blocking lever disengages the jam plate of cable chamber door, and cable chamber door can To open.This interlocking mechanism is simple in construction, and connection is reliable, convenient to install and maintain, is easy to inspection, manufacturing cost is low, non-maintaining, just In promotion and implementation.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, forms one of the application Point, do not form the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is that the high voltage isolator of the embodiment of the present invention is in "on" position structural representation;
Fig. 2 is along A-A sectional views in Fig. 2;
Fig. 3 is Fig. 2 partial enlarged drawings;
Fig. 4 is that the high voltage isolator of the embodiment of the present invention is in ground state structural representation;
Fig. 5 is along A-A sectional views in Fig. 4;
Fig. 6 is Fig. 5 partial enlarged drawings.
Mark and corresponding parts title in accompanying drawing:
1- isolator operating mechanisms, 2- disconnecting switch housings, 3- cable chamber doors, 4- bent plates, 5- blocking levers, 6- jam plates, 7- compression springs.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment and accompanying drawing, to this Invention is described in further detail, and exemplary embodiment of the invention and its explanation are only used for explaining the present invention, do not make For limitation of the invention.
Embodiment
As shown in Figures 1 to 6, a kind of high voltage isolator cabinet interlocking device for cable vault door of the present invention, including disconnecting switch Operating mechanism 1, disconnecting switch housing 2, cable chamber door 3.The lower end of isolator operating mechanism 1 is bolted disconnecting switch Housing 2, left side vertical beam is connected through the hinge the left side vertical beam of cable chamber door 3 before disconnecting switch housing 2, and cable chamber door 3 is around hinge Chain is rotated to open or close cable vault.Bent plate 4 is provided with isolator operating mechanism 1, bent plate 4, which is fixedly mounted on, keeps apart In the operating shaft for closing operating mechanism 1, the outer rim of bent plate 4 is provided with driving curved surface, and the lower end of bent plate 4 is connected with blocking lever 5, interlocking The top of bar 5 drives curved surface to remain tangent state with bent plate 4, and blocking lever 5 follows to get off on the driving curved surface of the outer rim of bent plate 4 Backhaul dynamic, the medium position of blocking lever 5 is provided with annular boss, and blocking lever 5 is movably arranged on the bottom of isolator operating mechanism 1 In the circular hole in face, circular hole is connected with cable vault, and blocking lever 5 moves vertically up and down in circular hole, and the annular boss of blocking lever 5 is straight Footpath is more than the diameter of circular hole, prevents blocking lever to be slipped in cable vault, the annular boss and isolator operating mechanism of blocking lever 5 Bottom surface between be coated with compression spring 7, compression spring 7 supports blocking lever 5 and popped up automatically, and the inner side of cable chamber door 3 is solid Surely jam plate 6 is provided with, the lockhole to match with blocking lever 5 is provided with jam plate 6.High voltage isolator be in close a floodgate when, high pressure every Leave and close major loop energization, the driving curved surface compacting blocking lever 5 of bent plate 4 moves down, and the bottom of blocking lever 5 will insert cable chamber door In the lockhole of jam plate on 3, blocking lever will fix cable chamber door, prevent cable chamber door from opening, it is ensured that high voltage isolator It is not misused, ensures the person and property safety.
Preferred embodiment, the top of blocking lever 5 offer notch, and notch is interior to be provided with roller by pivot pin, and roller is in axle Freely being rotated on pin, the driving curved surface of the cylindrical and bent plate 4 of roller is tangent, and when bent plate 4 rotates, roller also followed by rotation, Prevent that occurring the problem of clamping stagnation between bent plate 4 and blocking lever 5 occurs, ensure that the stability and reliability of interlock, interlock The bottom of bar 5 is taper, is inserted for the bottom of blocking lever 5 and guiding is provided in the lockhole of the jam plate on cable chamber door 3, improves interlocking dress The reliability put.
Preferred embodiment, the structure of jam plate 6 is L-shaped steel plate, and the one end of jam plate 6 is welded on the inner side of cable chamber door 3, separately The waist-shaped hole to match with the bottom pyramidal of blocking lever 5 is offered on one end, being arranged in equipment installation and debugging for mounting hole carries The high using flexible of the device.
Preferred embodiment, bent plate 4 are provided with the first driving curved face part, the second driving curved face part, the first driving curved surface The subsequent corrosion in portion is less than the subsequent corrosion of the second driving curved face part, when the curved surface of the first driving curved face part suppresses blocking lever 5 When, blocking lever 5 will the supporting role of compressed spring 7 pop up, the bottom of blocking lever 5 will be from cable chamber door 3 Jam plate lockhole in extract.When the curved surface of the second driving curved face part suppresses blocking lever 5, blocking lever 5 will be by second The compacting of drive surface moves down, and the bottom of blocking lever 5 will be inserted out of the jam plate on cable chamber door 3 lockhole.Due to curved The concrete structure of plate 4 can have a variety of different ways of realization, the concrete structure of bent plate 4 is not introduced herein.
Above-described embodiment, the purpose of the present invention, technical scheme and beneficial effect are carried out further Describe in detail, should be understood that the embodiment that the foregoing is only the present invention, be not intended to limit the present invention Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc., all should include Within protection scope of the present invention.

Claims (4)

1. a kind of high voltage isolator cabinet interlocking device for cable vault door, including isolator operating mechanism, disconnecting switch housing, electricity Cable room door, it is characterised in that the isolator operating mechanism lower end connects disconnecting switch housing, before the disconnecting switch housing End left side or right side are connected through the hinge the cable chamber door, and the cable chamber door rotates around the hinge to be opened or closed to beat Close, bent plate is provided with the isolator operating mechanism, the bent plate is fixedly mounted on the isolator operating mechanism In operating shaft, the bent plate outer rim is provided with driving curved surface, and the bent plate lower end is connected with blocking lever, the blocking lever Top and bent plate driving curved surface are tangent, and the blocking lever follows the driving curved surface of the bent plate outer rim to move up and down, described Annular boss is provided with the middle part of blocking lever, the blocking lever is movably arranged on the circular hole of the bottom surface of the isolator operating mechanism Interior, the blocking lever moves vertically up and down in the circular hole, and the blocking lever annular boss diameter is more than the Circularhole diameter, Compression spring, the compression spring are coated between the blocking lever annular boss and the bottom surface of the isolator operating mechanism Support the blocking lever to move upwards automatically, jam plate is fixed with the inside of the cable chamber door, be provided with the jam plate and institute State the lockhole that blocking lever matches.
2. a kind of high voltage isolator cabinet interlocking device for cable vault door according to claim 1, it is characterised in that described Locking bar top offers notch, and the notch is interior to be provided with roller by pivot pin, and the roller rotates on the pivot pin, described Roller is cylindrical tangent with bent plate driving curved surface, and the blocking lever bottom is bulb-type or taper.
A kind of 3. high voltage isolator cabinet interlocking device for cable vault door according to claim 1, it is characterised in that the lock Plate is L-shaped steel plate, and described jam plate one end is welded on the inside of the cable chamber door, is offered and the blocking lever bottom on the other end The lockhole to match, the lockhole are waist-shaped hole.
4. a kind of high voltage isolator cabinet interlocking device for cable vault door according to claim 1, it is characterised in that described curved Plate is provided with the first driving curved face part, the second driving curved face part, and the subsequent corrosion of the first driving curved face part is less than the second driving The subsequent corrosion of curved face part.
CN201711020910.6A 2017-10-27 2017-10-27 A kind of high voltage isolator cabinet interlocking device for cable vault door Withdrawn CN107644777A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711020910.6A CN107644777A (en) 2017-10-27 2017-10-27 A kind of high voltage isolator cabinet interlocking device for cable vault door

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711020910.6A CN107644777A (en) 2017-10-27 2017-10-27 A kind of high voltage isolator cabinet interlocking device for cable vault door

Publications (1)

Publication Number Publication Date
CN107644777A true CN107644777A (en) 2018-01-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711020910.6A Withdrawn CN107644777A (en) 2017-10-27 2017-10-27 A kind of high voltage isolator cabinet interlocking device for cable vault door

Country Status (1)

Country Link
CN (1) CN107644777A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201570788U (en) * 2009-10-13 2010-09-01 河南森源电气股份有限公司 Cabinet door interlocking device of switch cabinet
CN102024613A (en) * 2009-09-14 2011-04-20 江阴市云峰电器设备有限公司 Cam interlocking mechanism of vacuum switch
CN203707577U (en) * 2013-12-06 2014-07-09 常州世博电气有限公司 Isolation cabinet
CN204632628U (en) * 2015-05-13 2015-09-09 石家庄科林电气设备有限公司 For the interlock of breaker main shaft in high-tension switch cabinet and isolated operation axle
CN205789573U (en) * 2016-05-05 2016-12-07 安徽远拓电气设备制造有限公司 Power distribution cabinet interlocking mechanism
CN206134551U (en) * 2016-10-19 2017-04-26 成都宣扬电器有限公司 Novel aerify cabinet door interlocking device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102024613A (en) * 2009-09-14 2011-04-20 江阴市云峰电器设备有限公司 Cam interlocking mechanism of vacuum switch
CN201570788U (en) * 2009-10-13 2010-09-01 河南森源电气股份有限公司 Cabinet door interlocking device of switch cabinet
CN203707577U (en) * 2013-12-06 2014-07-09 常州世博电气有限公司 Isolation cabinet
CN204632628U (en) * 2015-05-13 2015-09-09 石家庄科林电气设备有限公司 For the interlock of breaker main shaft in high-tension switch cabinet and isolated operation axle
CN205789573U (en) * 2016-05-05 2016-12-07 安徽远拓电气设备制造有限公司 Power distribution cabinet interlocking mechanism
CN206134551U (en) * 2016-10-19 2017-04-26 成都宣扬电器有限公司 Novel aerify cabinet door interlocking device

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Application publication date: 20180130