CN102723222A - Fixed high-voltage switch cabinet interlocking mechanism - Google Patents
Fixed high-voltage switch cabinet interlocking mechanism Download PDFInfo
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- CN102723222A CN102723222A CN201210205356XA CN201210205356A CN102723222A CN 102723222 A CN102723222 A CN 102723222A CN 201210205356X A CN201210205356X A CN 201210205356XA CN 201210205356 A CN201210205356 A CN 201210205356A CN 102723222 A CN102723222 A CN 102723222A
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- locking bar
- push rod
- circuit breaker
- fixed
- rotating shaft
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Abstract
The invention discloses a fixed high-voltage switch cabinet interlocking mechanism. A circuit breaker spindle is connected with and drives a crank arm and a roller to rotate clockwise or anticlockwise; a third lock bar is pushed inwards or outwards under the action of a returning spring so as to be unlocked or locked with a second lock bar fixed on an ejector rod; the second lock bar fixed on the ejector rod is unlocked or locked so as to unlock or lock the ejector rod; the end of a rotating shaft is connected with a baffle plate, below which the ejector rod is arranged to be vertical with the baffle plate; a first lock bar and the second lock bar are arranged on the ejector rod; the returning spring is arranged outside the third lock rod; an operation handle is connected with a push rod; and the rotating shaft is connected with an opening button lock bar and a closing button lock bar and controls the opening button and the closing button of a circuit breaker respectively. According to the fixed high-voltage switch cabinet interlocking mechanism, a mechanical interlocking mechanism is added between the circuit breaker and an operating mechanism inside a high-voltage switch cabinet to realize a safer 'five prevention' interlocking function of the fixed high-voltage switch cabinet, and an active locking way is adopted to realize the interlocking function.
Description
Technical field
The present invention relates to the operating mechanism of power industry, the interlocking gear between particularly a kind of high-tension switch cabinet operating mechanism and the circuit breaker, i.e. fixed high-voltage switch cubicle interlocking gear with high-tension switch cabinet.
Background technology
In the electric substation of power system operation, the unlatching of the operation of the isolating switch of high-tension switch cabinet, circuit breaker, earthed switch and cabinet door need be satisfied " five is anti-" interlock requirement, that is: prevent the on-load branch, close isolating switch; Prevent the mistake branch, close circuit breaker; Prevent to be with ground wire to close isolating switch; Prevent charged hanging earthing conductor; Prevent mistakenly entering charged chamber.At present the operating mechanism of fixed high-voltage switch cubicle is of a great variety, and the chain also form between itself and the circuit breaker is different, has plenty of the rigid interlocking gear that part is cylinder iron made, because ironcasting processing is coarse; Error is big, assembling difficulty, chain poor reliability; And install hiddenly, not visual, not visual and clear operates; Can not find and the eliminating fault in the very first time, very easily cause misoperation and destructive procedure, cause the damage of potential safety hazard and equipment; Have plenty of with the motorcycle brake cable and make soft interlocking gear, but, bring hidden danger to safety operation because the rigid impact the when frequent operation of isolating switch and circuit-breaker switching on-off is easy to cause the fracture of wire of motorcycle brake cable to lose chain function until at last for disconnected strand; The mode of also having plenty of with procedure lock realizes " five prevent " interlocking, and program is complicated, and operation slowly requires the necessary clear thinking of operating personnel, and the qualification of operation is high, and there have slightly to be not right, must heavily come, and influences power supplying efficiency; It is passive chain also having plenty of chain between operating mechanism and the circuit breaker; Promptly when breaker closing, the sub-switching operation of isolating switch realizes having plenty of operating mechanism and be in the isolating switch operable state through the passive circuit breaker trip that lets of operating mechanism; The distant place electric switch-on operation of circuit breaker still can be carried out; Exist the certain potential safety hazard and the possibility of misoperation like this, and the reliability of influence power supply takes place in the accident that the breaker closing coil burns out.
Summary of the invention
The present invention seeks to overcome the deficiency that prior art exists, between circuit breaker and operating mechanism, install a kind of powered operation safety, reliable laborsaving again, the interlock of avoiding misoperation, i.e. mechanical interlocking mechanism for stationary type high voltage switch cabinet additional.
The present invention is through installing " five is anti-" chain function that mechanical interlocking gear realizes that fixed high-voltage switch cubicle is safer additional between high-tension switch cabinet inner breaker and operating mechanism; Realizing adopting the Active Locking mode on the chain function; Be that circuit breaker operating grip when closing a floodgate is pulled less than the disjunction locked position of coupler, the handle hole of isolating switch just can not be opened, and isolating switch can not be operated; Initiatively prevent the on-load branch, close isolating switch, not only safe and reliable but also laborsaving; Otherwise when operating mechanism handle wrench to disjunction locked position of coupler; Take circuit breaker closing by hand button locked from mechanical structure; Take on electric the dual linkage mode that the electric switch-on loop of circuit breaker is broken off is prevented breaker closing; No matter circuit breaker is that closing by hand or electric switch-on are not combined (being in off-state) like this, initiatively prevents the mistake branch, closes circuit breaker.
For realizing that the technical scheme that above-mentioned purpose the present invention proposes is: a kind of fixed high-voltage switch cubicle interlocking gear; Comprise circuit breaker main shaft, connecting lever, roller, locking bar, rotating shaft, push rod, push rod, back-moving spring, opening button locking bar and switch knob locking bar; It is characterized in that: connecting lever is connected with roller; The circuit breaker main shaft connect to drive connecting lever and roller is done clockwise or is rotated counterclockwise, under the effect of back-moving spring the 3rd locking bar by to the inside or the outside promote, make the 3rd locking bar and be fixed on second locking bar release or the locking on the push rod; To be fixed in second locking bar release or the locking on the push rod, and push rod is unlocked or will lock; The end of rotating shaft is connected with baffle plate, and baffle plate below be provided with push rod perpendicular with it is equipped with first locking bar and second locking bar on push rod; The 3rd locking bar be peripherally equipped with back-moving spring; Operating grip is connected with push rod; Connect on the rotating shaft opening button locking bar and switch knob locking bar are housed, opening button locking bar and switch knob locking bar are controlled breaker open operation button and breaker closing button respectively;
Circuit breaker is in "on" position; The circuit breaker main shaft connects the drive connecting lever and roller is rotated counterclockwise; The 3rd locking bar is promoted under the effect of back-moving spring laterally, and the combined floodgate of second locking bar through circuit breaker that is fixed on the push rod locked by the 3rd locking bar, and push rod is locked; First locking bar and the push rod of attended operation handle that are fixed on the push rod are locked; Operating grip is prevented from pulling to the disjunction locked position of coupler, stops push rod to move upward and the rotatablely moving of rotating shaft overhead gage, and makes the breaker open operation button locking bar and the stop motion of switch knob locking bar of rotating shaft interlock;
Circuit breaker is in gate-dividing state; The circuit breaker main shaft connects the drive connecting lever and roller turns clockwise; The 3rd locking bar moves under the effect of back-moving spring to the inside; Make the 3rd locking bar radial end face and roller form contact and be connected, make the 3rd locking bar and second locking bar that is fixed on the push rod break off release; The push rod release is fixed in first locking bar on the push rod and is fixed in the push rod release on the operating grip simultaneously, and operating grip is pulled and rotated to the disjunction locked position of coupler; Drive pushrod movement, promote first locking bar and move upward, push rod is moved upward; Make the baffle plate and the rotating shaft motion of being fixed on the rotating shaft; Opening button locking bar on the driven rotary axle and the motion of switch knob locking bar, control locking breaker open operation button and breaker closing button, cut-off breaker electric switch-on loop.
Described circuit breaker is in "on" position, and when operating grip was prevented from pulling to the disjunction locked position of coupler, the breaking-closing operating hole of isolating switch was locked, and the divide-shut brake of isolating switch is prevented from operation, and the realization on-load is forbidden a deciliter isolating switch; Described circuit breaker is at gate-dividing state, and operating grip is pulled when rotating to the disjunction locked position of coupler, and the breaking-closing operating hole release of isolating switch is opened, and the divide-shut brake of isolating switch can be operated, and realizes zero load deciliter isolating switch.
The present invention compared with prior art has following advantage:
1, this interlocking device adopts sheet metal component and machine to add part to assemble, be equipped with the round steel connecting rod, thereby make this mechanism satisfy the mechanical performance requirement, and it is reliable and stable to make that this mechanism operates.
2, reliable and stable " five is anti-" interlock: 1. force through operating mechanism and ingenious property make the operator by regulation order deciliter isolation knife, effectively prevented misoperation; 2. operating mechanism makes and only when circuit breaker is in gate-dividing state, could operate isolation knife through connecting rod and circuit breaker interlocking; 3. the handle through operating mechanism with preceding in gate interlock, preceding in the Men Yuqian Xiamen adopt rigid interlocking, make have only just can open after isolating switch breaks off, earthed switch closes preceding in, the Xiamen; 4. operating mechanism is through gate interlock in connecting rod and the back, and rigid interlocking is adopted in the Men Yuhou Xiamen in the back, make only break off at isolating switch, earthed switch just can open after closing after in, the Xiamen; 5. urgent opening button is set, can be when burst accident takes place at very first time cut-off breaker.
3, has tangible cut-off point.Cabinet type of the present invention is made up of last isolating switch, fixed circuit breaker, current transformer, following isolating switch, earthed switch and lightning arrester.The door relevant position is furnished with observation window before and after cabinet, outside cabinet, just can see deciliter situation of isolating switch clearly, and it is more intuitively more clear that this cabinet is operated, thereby reduced the generation of corresponding accident.
Description of drawings
Fig. 1 is the general structure sketch map of interlocking gear of the present invention.
Fig. 2 is the vertical view of Fig. 1.
Connecting lever and the 3rd locking bar position concerned sketch map when Fig. 3 was the breaker open operation state for the right view of Fig. 1.
Connecting lever and the 3rd locking bar position concerned sketch map when Fig. 4 was the breaker closing state.
Among the figure: 1 rotating shaft, 2 baffle plates, 3 push rods, 4, the A support, 5 first locking bars; 6 push rods, 7, the B support, 8 second locking bars, 9 rollers, 10 the 3rd locking bars; 11 back-moving springs, 12 axle sleeves, 13 operating grips, 14 connecting levers, 15 circuit breaker main shafts; 16 breaker open operation buttons, 17 breaker closing buttons, 18 opening button locking bars, 19 switch knob locking bars, 20 isolator operation holes.
Embodiment
Like Fig. 1, shown in Figure 2; Interlocking gear of the present invention mainly is made up of circuit breaker main shaft, connecting lever, roller, locking bar, rotating shaft, push rod, push rod, back-moving spring, opening button locking bar and switch knob locking bar; Circuit breaker main shaft 15 connects drive connecting lever 14 and roller 9 is done clockwise or is rotated counterclockwise; Connecting lever 14 is equipped with axle sleeve 12 through the end that the pivot pin that is fixed in the above connects roller 9, the three locking bars 10, and B support 7 is fixedly connected with axle sleeve 12; Be used for support sleeve 12, move horizontally to guarantee the 3rd locking bar 10 in the axle sleeve 12; The 3rd locking bar 10 other ends are peripherally equipped with back-moving spring 11, and the 3rd locking bar 10 is that the inboard or the outside promote to both sides under the effect of back-moving spring 11, and the 3rd locking bar is moved laterally; To be fixed in second locking bar, 8 locking or the releases on the push rod 3, push rod 3 is locked or release; The end of rotating shaft 1 is connected with baffle plate 2, and baffle plate 2 belows be provided with push rod 3 perpendicular with it is equipped with first locking bar 5 and second locking bar 8 on push rod 3; The A support 4 that connects as one with B support 7 is used to support push rod 3, to guarantee that push rod 3 moves both vertically up and down; The 3rd locking bar 10 tops be peripherally equipped with back-moving spring 11; Operating grip 13 is connected with push rod 6; Connect on the rotating shaft 1 opening button locking bar 18 and switch knob locking bar 19 are housed, opening button locking bar 18 is controlled breaker open operation button 16 and breaker closing button 17 respectively with switch knob locking bar 19.
Referring to Fig. 3; When circuit breaker was in gate-dividing state, circuit breaker main shaft 15 can rotate, and circuit breaker main shaft 15 drives connecting lever 14 and roller 9 turns clockwise; The 3rd locking bar 10 is (to the right) motion to the inside under the effect of back-moving spring 11; When back-moving spring 11 promotions the 3rd locking bar 10 moved laterally, the radial end face of the 3rd locking bar 10 formed contacts with roller 9 and is connected, and roller 9 turns clockwise; Make the 3rd locking bar 10 and second locking bar 8 that is fixed on the push rod 3 break off release, the push rod 6 that meanwhile is fixed on the operating grip 13 also is unlocked; The push rod release is fixed in first locking bar 5 on the push rod and is fixed in push rod 6 releases on the operating grip 13 simultaneously, and operating grip 13 is pulled and rotated to the disjunction locked position of coupler; Drive push rod 6 motions, promote first locking bar 5 and move upward, first locking bar 5 is fixed on the push rod 3; Push rod 3 moves upward like this; Baffle plate 2 motions on the rotating shaft 1 are fixed in promotion, thereby driven rotary axle 1 rotates, and make rotating shaft 1 drive breaker open operation button locking bar 18 and 19 motions of switch knob locking bar; Control locking breaker open operation button 16 and breaker closing button 17, cut-off breaker electric switch-on loop; Thereby inner manual divide-shut brake and the electric switch-on of control circuit breaker, the realization isolating switch is forbidden breaker closing under operable state.When circuit breaker was in gate-dividing state, operating grip 13 was pulled when rotating to the disjunction locked position of coupler, and the breaking-closing operating hole 20 of isolating switch is opened, and the divide-shut brake of isolating switch can be operated, and realized zero load deciliter isolating switch.
Otherwise when circuit breaker is in "on" position; Circuit breaker main shaft 15 connects drive connecting lever 14 and roller 9 is rotated counterclockwise; The 3rd locking bar 10 is promoted (see figure 4) by (left) laterally under the effect of back-moving spring 11; Be fixed in the combined floodgate of second locking bar 8 through circuit breaker on the push rod 3 by 10 lockings of the 3rd locking bar, push rod 3 is locked, first locking bar 5 and the push rod 6 of attended operation handle 13 that are fixed on simultaneously on the push rod 3 are locked; When push rod 3 is locked; Operating grip 13 is prevented from pulling to the disjunction locked position of coupler; Stop push rod to move upward and the rotatablely moving of rotating shaft 1 overhead gage 2; Make the breaker open operation button locking bar 18 and 19 stop motions of switch knob locking bar of rotating shaft interlock, thereby avoid the sub-switching operation of Passive Control circuit breaker, realization breaker closing state isolation switch can not be operated.Circuit breaker is under "on" position, and operating grip 13 can not be pulled and rotate to the disjunction locked position of coupler, and breaking-closing operating hole 20 lockings of isolating switch can not be opened, and the divide-shut brake of isolating switch can't be operated, and realizes that on-load can not deciliter isolating switch.
Claims (2)
1. fixed high-voltage switch cubicle interlocking gear; Comprise circuit breaker main shaft, connecting lever, roller, locking bar, rotating shaft, push rod, push rod, back-moving spring, opening button locking bar and switch knob locking bar; It is characterized in that: connecting lever is connected with roller; The circuit breaker main shaft connect to drive connecting lever and roller is done clockwise or is rotated counterclockwise, under the effect of back-moving spring the 3rd locking bar by to the inside or the outside promote, make the 3rd locking bar and be fixed on second locking bar release or the locking on the push rod; To be fixed in second locking bar release or the locking on the push rod, and push rod is unlocked or will lock; The end of rotating shaft is connected with baffle plate, and baffle plate below be provided with push rod perpendicular with it is equipped with first locking bar and second locking bar on push rod; The 3rd locking bar be peripherally equipped with back-moving spring; Operating grip is connected with push rod; Connect on the rotating shaft opening button locking bar and switch knob locking bar are housed, opening button locking bar and switch knob locking bar are controlled breaker open operation button and breaker closing button respectively;
Circuit breaker is in "on" position; The circuit breaker main shaft connects the drive connecting lever and roller is rotated counterclockwise; The 3rd locking bar is promoted under the effect of back-moving spring laterally, and the combined floodgate of second locking bar through circuit breaker that is fixed on the push rod locked by the 3rd locking bar, and push rod is locked; First locking bar and the push rod of attended operation handle that are fixed on the push rod are locked; Operating grip is prevented from pulling to the disjunction locked position of coupler, stops push rod to move upward and the rotatablely moving of rotating shaft overhead gage, and makes the breaker open operation button locking bar and the stop motion of switch knob locking bar of rotating shaft interlock;
Circuit breaker is in gate-dividing state; The circuit breaker main shaft connects the drive connecting lever and roller turns clockwise; The 3rd locking bar moves under the effect of back-moving spring to the inside; Make the 3rd locking bar radial end face and roller form contact and be connected, make the 3rd locking bar and second locking bar that is fixed on the push rod break off release; The push rod release is fixed in first locking bar on the push rod and is fixed in the push rod release on the operating grip simultaneously, and operating grip is pulled and rotated to the disjunction locked position of coupler; Drive pushrod movement, promote first locking bar and move upward, push rod is moved upward; Make the baffle plate and the rotating shaft motion of being fixed on the rotating shaft; Opening button locking bar on the driven rotary axle and the motion of switch knob locking bar, control locking breaker open operation button and breaker closing button, cut-off breaker electric switch-on loop.
2. fixed high-voltage switch cubicle interlocking gear according to claim 1; It is characterized in that: described circuit breaker is in "on" position; When operating grip is prevented from pulling to the disjunction locked position of coupler; The breaking-closing operating hole of isolating switch is locked, and the divide-shut brake of isolating switch is prevented from operation, and the realization on-load is forbidden a deciliter isolating switch; Described circuit breaker is at gate-dividing state, and operating grip is pulled when rotating to the disjunction locked position of coupler, and the breaking-closing operating hole release of isolating switch is opened, and the divide-shut brake of isolating switch can be operated, and realizes zero load deciliter isolating switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210205356.XA CN102723222B (en) | 2012-06-13 | 2012-06-13 | Fixed high-voltage switch cabinet interlocking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210205356.XA CN102723222B (en) | 2012-06-13 | 2012-06-13 | Fixed high-voltage switch cabinet interlocking mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102723222A true CN102723222A (en) | 2012-10-10 |
| CN102723222B CN102723222B (en) | 2014-07-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210205356.XA Expired - Fee Related CN102723222B (en) | 2012-06-13 | 2012-06-13 | Fixed high-voltage switch cabinet interlocking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102723222B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110729141A (en) * | 2019-10-25 | 2020-01-24 | 湖北鄂电萃宇电器有限公司 | High-voltage cabinet circuit breaker opening and closing operating rod device and installation method thereof |
| CN114383121A (en) * | 2022-01-20 | 2022-04-22 | 山东正赢电力工程有限公司 | Vertical carbon waste heat boiler |
| CN117497364A (en) * | 2024-01-02 | 2024-02-02 | 威士敦电力科技(无锡)有限公司 | Mechanical closing and locking device of high-voltage circuit breaker |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201259861Y (en) * | 2008-09-09 | 2009-06-17 | 温州市三顺电器有限公司 | Middle disposed high-voltage switch cabinet grounding switch controlling mechanism interlocking apparatus |
| CN201829829U (en) * | 2010-09-26 | 2011-05-11 | 万控（天津）电气有限公司 | Rear door interlocking device of high-voltage switch cabinet |
| CN201838503U (en) * | 2010-10-28 | 2011-05-18 | 浙江亚东电器制造有限公司 | Interlocking device for grounding switch and rear door of high-voltage switch cabinet |
| CN202633146U (en) * | 2012-06-13 | 2012-12-26 | 朝阳当凯电力开关有限公司 | Fixed high-voltage switch cabinet interlocking mechanism |
-
2012
- 2012-06-13 CN CN201210205356.XA patent/CN102723222B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201259861Y (en) * | 2008-09-09 | 2009-06-17 | 温州市三顺电器有限公司 | Middle disposed high-voltage switch cabinet grounding switch controlling mechanism interlocking apparatus |
| CN201829829U (en) * | 2010-09-26 | 2011-05-11 | 万控（天津）电气有限公司 | Rear door interlocking device of high-voltage switch cabinet |
| CN201838503U (en) * | 2010-10-28 | 2011-05-18 | 浙江亚东电器制造有限公司 | Interlocking device for grounding switch and rear door of high-voltage switch cabinet |
| CN202633146U (en) * | 2012-06-13 | 2012-12-26 | 朝阳当凯电力开关有限公司 | Fixed high-voltage switch cabinet interlocking mechanism |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110729141A (en) * | 2019-10-25 | 2020-01-24 | 湖北鄂电萃宇电器有限公司 | High-voltage cabinet circuit breaker opening and closing operating rod device and installation method thereof |
| CN110729141B (en) * | 2019-10-25 | 2022-07-01 | 湖北鄂电萃宇电器有限公司 | High-voltage cabinet circuit breaker opening and closing operating rod device and installation method thereof |
| CN114383121A (en) * | 2022-01-20 | 2022-04-22 | 山东正赢电力工程有限公司 | Vertical carbon waste heat boiler |
| CN114383121B (en) * | 2022-01-20 | 2024-03-29 | 山东正赢电力工程有限公司 | Vertical carbon waste heat boiler |
| CN117497364A (en) * | 2024-01-02 | 2024-02-02 | 威士敦电力科技(无锡)有限公司 | Mechanical closing and locking device of high-voltage circuit breaker |
| CN117497364B (en) * | 2024-01-02 | 2024-03-22 | 威士敦电力科技(无锡)有限公司 | Mechanical closing and locking device of high-voltage circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102723222B (en) | 2014-07-16 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Address after: 122000 Liaoning City, Chaoyang City Province Cultural District Road No. 5, No. 104 Patentee after: Liaoning is when triumphant Utilities Electric Co., Ltd. Address before: 122000 Liaoning City, Chaoyang City Province Cultural District Road No. 5, No. 104 Patentee before: Chaoyang Dangkai Electric Power Switch Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140716 Termination date: 20210613 |