CN101165830A - Mechanical interlocking safety device for high-tension switch cabinet - Google Patents
Mechanical interlocking safety device for high-tension switch cabinet Download PDFInfo
- Publication number
- CN101165830A CN101165830A CNA2006100324364A CN200610032436A CN101165830A CN 101165830 A CN101165830 A CN 101165830A CN A2006100324364 A CNA2006100324364 A CN A2006100324364A CN 200610032436 A CN200610032436 A CN 200610032436A CN 101165830 A CN101165830 A CN 101165830A
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- locking bolt
- hole
- switch handle
- square shaft
- door
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Abstract
The invention comprises: a door sheet of high voltage switch cabinet and a link drive mechanism. It features the following: there are four holes on the door sheet; the link drive mechanism comprises a square shaft, a straight set bar, a Y-shaped set bar and a door set bar; above the square shaft there is a carrier rod of switch disconnector; on the square shaft there is a spring fixed; at one side of the square there is a stopper fixed; the straight set bar is a long bar vertical to the square shaft; its left end is an isolating switch lever located on the isolating switch level hole; its right end extends into the isolating switch operation hole; the top lift end of the Y-shaped set bar is a grounding switch level located in the grounding switch level hole; the top right end of Y-shaped set bar extends into the isolating switch operation hole; the lower end of the Y-shaped set bar extends into the grounding operation hole.
Description
Technical field
The present invention relates to the safety device of electric equipment, i.e. a kind of mechanical interlocking safety device of high-tension switch cabinet.
Background technology
Press GB3906, DL/T404 country and power industry standard regulation, the structural design of high-tension switch cabinet should satisfy following " five is anti-" interlock: prevent that 1, mistake from dividing, closing circuit breaker; 2, prevent the on-load branch, close isolating switch; 3, prevent charged splice grafting ground switch; 4, prevent to be with earthed switch to close isolating switch; 5, prevent mistakenly entering charged chamber.
In the high pressure switchgear assembly, in order to prevent misoperation and mistakenly entering charged chamber, all design has mechanical interlocks or electric interlocking installation, mechanical interlocks is enforceable, dependable performance, be the pleased a kind of safety devices that adopt of most users, the purpose of its design and effect are the generations that prevents the person and device security accident.
Mechanical interlocking safety device design defect in the past shows that mainly the blocking function of earthed switch and isolating switch is incomplete.In the miniaturization of Sheng Chaning at home, the environment-friendly type vacuum switch cabinet, the incomplete problem of interlock that ubiquity above-mentioned " five is anti-".That is to say, if the user is carrying out in the operating process of transmission or not switch cubicle, in case follow procedure and misoperation has taken place not so, because violation operation can not be subjected to enforceable restriction, will cause artificial security incident at any time.
When switch cubicle send the electricity operation, by the proper operation program, should at first separate earthed switch, the isolating switch that closes then closes a floodgate vacuum circuit-breaker or on-load switch again.If isolating switch and circuit breaker are just closed in operating personnel's violation operation before not dividing the ground connection switch, will make switch cubicle generation ground short circuit, cause the serious accident of equipment burnout.This is to cause owing to lack the mechanical interlocking safety device with mandatory restriction means in operating process.Therefore, the mechanical interlocking safety device of present domestic like product can't satisfy the standard-required that prevents to close with earthed switch isolating switch in " five is anti-".
Summary of the invention
Purpose of the present invention is exactly to overcome traditional incomplete shortcoming of high-tension switch cabinet safety device function, provides a kind of and can satisfy the mechanical interlocking safety device that " five is anti-" requires simultaneously.
The mechanical interlocking safety device of this high-tension switch cabinet, the door-plate and the same jointed gear unit that fixes on the door-plate inner surface that comprise high-tension switch cabinet, it is characterized in that, 4 holes are arranged on the door-plate, 2 circular ports, be isolator operation hole and earthed switch handle hole, 2 bar holes, be that isolating switch is in delthyrium and earthed switch handle hole, the upper end of the left end of isolating switch handle hole and earthed switch handle hole also has curved groove, jointed gear unit comprises square shaft, straight locking bolt, Y shape locking bolt and door lock bolt, there is the push rod of on-load switch the square shaft top, be fixed with spring on the square shaft, square shaft one side is fixed with block, straight locking bolt is a stock vertical with square shaft, left end is the isolating switch handle, be arranged in the isolating switch handle hole, right-hand member stretches in the isolator operation hole, center fixed has spring, Y shape locking bolt left upper end is the earthed switch handle, be arranged in the earthed switch handle hole, earthed switch handle bottom is fixed with spring, Y shape locking bolt upper right side stretches in the isolator operation hole, and Y shape locking bolt lower end is stretched in the earthed switch handle hole, and the door lock bolt is a stock, vertical with Y shape locking bolt hypomere, one end links to each other by pin-and-hole with door handle, and the other end is a jam plate, matches with keeper on the earthed switch axle head.
Course of action is as follows when sending electricity:
One, off switch cabinet door-plate, to carry on the earthed switch handle, place in the curved groove in earthed switch handle hole upper end and block, move on the Y shape locking bolt, the isolator operation hole is stuck, the earthed switch handle hole is opened, and inserts in the earthed switch handle hole rotation earthed switch axle with operating handle, make the earthed switch separating brake, keeper overlap joint on jam plate on the door lock bolt and the earthed switch axle head is extracted handle out, and the earthed switch handle is pulled out curved groove, pass through spring, make that Y shape locking bolt falls, return, sealing earthed switch handle hole, the switch cubicle door-plate is lockable.
Two, with the isolating switch handle to the Zola and place in the curved groove and block, straight locking bolt moves to left, and opens the isolator operation hole, and the operator handle is inserted in the isolator operation hole, the rotary isolation switch axle, isolating switch is closed a floodgate, extract handle out, the isolating switch handle is pulled out curved groove, under spring action, straight locking bolt moves to right, self-return, sealing isolator operation hole.
Three, on-load switch is closed a floodgate, push rod moves down, and promotes square shaft and moves down, and block moves down sealing isolating switch handle hole.
Course of action during power failure:
One, with the on-load switch separating brake, moves on the push rod, under spring action, move on the square shaft and reset, move on the block and open the isolating switch handle hole.
Two, with the isolating switch handle to the Zola and place in the curved groove and block, straight locking bolt moves to left, and opens the isolator operation hole, and operating handle is inserted in the isolator operation hole, the rotary isolation switch axle makes the isolating switch separating brake, extracts handle then out.
Three, will carry on the earthed switch handle, place in the curved groove and block, move on the Y shape locking bolt, open the earthed switch handle hole, operating handle is inserted in the earthed switch handle hole, and rotation earthed switch axle closes a floodgate earthed switch, jam plate on the door lock bolt separates with keeper on the earthed switch axle head, extract handle then out, the earthed switch handle is pulled out curved groove, pass through spring, make Y shape locking bolt fall return automatically, door-plate is opened and is entered inspecting state.
Interlock of the present invention has been realized five functions of preventing, and is safe and reliable, and convenient durable, fabrication and installation simultaneously are simple, and cost is lower.
Description of drawings:
Fig. 1 is door-plate outer surface figure of the present invention
Fig. 2 is jointed gear unit figure of the present invention
Among the figure: 1, door-plate, 2, the isolator operation hole, 3, the earthed switch handle hole, 4, isolating switch handle hole, 5, the earthed switch handle hole, 6, square shaft, 7, straight locking bolt, 8, Y shape locking bolt, 9, the door lock bolt, 10, push rod, 11, block, 12, the isolating switch handle, 13, earthed switch handle, 14, jam plate, 15, isolation switch shaft, 16, earthed switch axle, 17, keeper, 18, door handle.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail as follows:
In Fig. 1, four holes are arranged on the door-plate 1 of switch cubicle, 2 circular ports, promptly isolator operation hole 2 and earthed switch handle hole 3 have isolation switch shaft 15 and earthed switch axle 16 respectively in their holes, the earthed switch axle head has keeper 17,2 bar holes, i.e. isolating switch handle hole 4 and earthed switch handle hole 5, their right-hand member (outside cabinet) and upper end have curved groove respectively, isolating switch handle 12 and earthed switch handle 13 are arranged respectively in the hole, and table also has door handle 18 outdoors.
In Fig. 2, jointed gear unit comprises square shaft 6, straight locking bolt 7, Y shape locking bolt 8 and door lock bolt 9, they all are fixed on the inner surface of door-plate 1, there is the push rod 10 of on-load switch square shaft 6 tops, be fixed with spring on the square shaft 6, the right side of square shaft 6 is fixed with block 11, straight locking bolt 7 is vertical with square shaft 6, and left end is an isolating switch handle 12, and right-hand member stretches in the isolator operation hole 2, center fixed has spring, Y shape locking bolt 8 left upper ends are earthed switch handle 13, and its bottom is fixed with spring, and the upper right side of Y shape locking bolt 8 stretches in the isolator operation hole 2, the lower end of Y shape locking bolt 8 is stretched in the earthed switch handle hole 3, door lock bolt 9 is a stock, and vertical with the hypomere of Y shape locking bolt 8, left end is fixed with jam plate 14, match with the keeper 17 on the earthed switch axle head 16, right-hand member passes through pin, the hole links to each other with door handle 18.
Claims (4)
1. the mechanical interlocking safety device of a high-tension switch cabinet, the door-plate and the jointed gear unit that is fixed on the door-plate inner surface that comprise high-tension switch cabinet, it is characterized in that, 4 holes are arranged on the door-plate, 2 circular ports, be isolator operation hole and earthed switch handle hole, 2 bar holes, be isolating switch handle hole and earthed switch handle hole, jointed gear unit comprises square shaft, straight locking bolt, Y shape locking bolt and door lock bolt, there is the push rod of on-load switch the square shaft top, be fixed with spring on the square shaft, square shaft one side is fixed with block, straight locking bolt is a stock vertical with square shaft, left end is the isolating switch handle, be arranged in the isolating switch handle hole, right-hand member stretches in the isolator operation hole, Y shape locking bolt left upper end is the earthed switch handle, is arranged in the earthed switch handle hole, and Y shape locking bolt upper right side stretches in the isolator operation hole, Y shape locking bolt lower end is stretched in the earthed switch handle hole, the door lock bolt is a stock, and vertical with Y shape locking bolt hypomere, an end links to each other by pin-and-hole with door handle, the other end is a jam plate, matches with keeper on the earthed switch axle head.
2. the mechanical interlocking safety device of a kind of high-tension switch cabinet according to claim 1 is characterized in that, the upper end of the left end of isolating switch handle hole and earthed switch handle hole also has curved groove.
3. the mechanical interlocking safety device of a kind of high-tension switch cabinet according to claim 1 is characterized in that, straight locking bolt center fixed has spring.
4. the mechanical interlocking safety device of a kind of high-tension switch cabinet according to claim 1 is characterized in that, Y shape locking bolt earthed switch handle bottom is fixed with spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610032436A CN100576392C (en) | 2006-10-18 | 2006-10-18 | A kind of mechanical interlocking safety device of high-tension switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610032436A CN100576392C (en) | 2006-10-18 | 2006-10-18 | A kind of mechanical interlocking safety device of high-tension switch cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101165830A true CN101165830A (en) | 2008-04-23 |
| CN100576392C CN100576392C (en) | 2009-12-30 |
Family
ID=39334468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610032436A Expired - Fee Related CN100576392C (en) | 2006-10-18 | 2006-10-18 | A kind of mechanical interlocking safety device of high-tension switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100576392C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104485243A (en) * | 2014-11-14 | 2015-04-01 | 中黔电气集团股份有限公司 | Interlocking mechanism of upper disconnecting switch |
| CN109546572A (en) * | 2018-11-30 | 2019-03-29 | 国网河南省电力公司商丘供电公司 | A kind of electric integrated rush repair equipment |
-
2006
- 2006-10-18 CN CN200610032436A patent/CN100576392C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104485243A (en) * | 2014-11-14 | 2015-04-01 | 中黔电气集团股份有限公司 | Interlocking mechanism of upper disconnecting switch |
| CN109546572A (en) * | 2018-11-30 | 2019-03-29 | 国网河南省电力公司商丘供电公司 | A kind of electric integrated rush repair equipment |
| CN109546572B (en) * | 2018-11-30 | 2020-04-17 | 国网河南省电力公司商丘供电公司 | Comprehensive electric power rush-repair equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100576392C (en) | 2009-12-30 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091230 Termination date: 20121018 |