CN101436484B - Mechanical interlocking mechanism for stationary type high voltage switch cabinet - Google Patents
Mechanical interlocking mechanism for stationary type high voltage switch cabinet Download PDFInfo
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- CN101436484B CN101436484B CN2008101365816A CN200810136581A CN101436484B CN 101436484 B CN101436484 B CN 101436484B CN 2008101365816 A CN2008101365816 A CN 2008101365816A CN 200810136581 A CN200810136581 A CN 200810136581A CN 101436484 B CN101436484 B CN 101436484B
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Abstract
The invention discloses a mechanical interlocking mechanism for a fixed type high pressure switch cabinet, which comprises a separating switch which is arranged on a cabinet body and can rotate around a switch shaft, and a rocking arm which is connected with a breaker breaking mechanism and can rotate around a main shaft, wherein the cabinet body is provided with a first oscillating arm rotating around a first pin shaft and a second oscillating arm rotating around a second pin shaft respectively, wherein one end of the first oscillating arm is in pin connection with one end of a top rod, the other end of the top rod is in pin connection with the rocking arm; one end of the second oscillating arm is in pin connection with one end of a top arm, the other end of the top arm is in pin connection with the separating switch; and the first oscillating arm and the second oscillating arm are provided with a first stop part and a second stop part respectively, when the breaker switches on, the first stop part is stopped on a motion path on which the second stop part rotates around the second pin shaft along with the second oscillating arm. The mechanism has the advantages of simple structure, few parts, little space occupied in the cabinet, and easy maintenance of equipment in the cabinet.
Description
Technical field
The present invention relates to a kind of mechanical interlocking mechanism for stationary type high voltage switch cabinet.
Background technology
Existing fixed formula high-tension switch cabinet is interior for prevent that staff's on-load from drawing by mistake, mistake is closed isolating switch, mistakenly entering charged chamber is equipped with mechanical chain mechanism usually between circuit breaker and isolating switch, to guarantee only just can leave behind isolating switch under the situation of circuit breaker disjunction; Otherwise only under the situation of isolating switch of closing in advance, could close circuit breaker.Yet existing this common complex structure of quasi-linkage mechanism usually adopts parts such as jam plate, pin, lock pin, and not only quantity is many, and it is big to take the interior space of cabinet, makes troubles for the maintenance of equipment in the cabinet.
Summary of the invention
The present invention seeks to: provide a kind of simple in structure, parts are few, and it is little to take the interior space of cabinet, are easy to the mechanical interlocking mechanism for stationary type high voltage switch cabinet of maintenance of equipment in the cabinet.
Technical scheme of the present invention is: a kind of mechanical interlocking mechanism for stationary type high voltage switch cabinet comprises the rocking arm that is installed on the cabinet isolating switch that can rotate around switch shaft and is connected in the circuit breaker disjunction mechanism and can rotates around main shaft; Second connecting lever that is separately installed with first connecting lever that can rotate around first bearing pin on the described cabinet and can rotates around second bearing pin, wherein an end pin joint of first connecting lever is at a push rod one end, and the other end of this push rod connects with aforementioned rocker-arm roller pin; One end pin joint of described second connecting lever is at a top arm one end, and this top arm other end pin joint is on isolating switch; And be respectively equipped with first stopper and second stopper on first connecting lever and second connecting lever, when breaker closing, described first stopper retaining second stopper with second connecting lever on the motion path of second bearing pin rotation.
The present invention such as above-mentioned main technical schemes realize is chain between isolating switch and circuit breaker, its operation principle is as follows: under the situation of switch cubicle operate as normal, circuit breaker and isolating switch all close a floodgate, the present invention is in blocking, this moment since first stopper retaining second stopper with second connecting lever on the motion path of second bearing pin rotation, make second connecting lever to rotate, the isolating switch of also promptly can't leaving behind makes its separating brake.
In order to make the isolating switch separating brake, must carry out the disjunction of circuit breaker earlier.Driving rocking arm by its inner disjunction mechanism when the circuit breaker disjunction rotates around main shaft, act on first connecting lever by push rod then, it is rotated around first bearing pin, force first stopper to leave original block position for second stopper, such second connecting lever just can rotate around second bearing pin, the isolating switch of also promptly can leaving behind makes its separating brake, and the present invention is release then.
Otherwise staff's isolating switch that must close earlier just can make breaker closing; This is because if circuit breaker closes a floodgate in advance, so since first stopper can keep off equally second stopper with second connecting lever on the motion path of second bearing pin rotation, make second connecting lever to rotate, also be that isolating switch can't close a floodgate.
Certainly the present invention has further embodiment, and this embodiment can realize that by additional technical feature circuit breaker, isolating switch and cabinet door are triangular chain on the basis of above-mentioned main technical schemes.Concrete additional technical characterictic is as follows:
Cabinet door and door lock are installed on the described cabinet, and this door lock is made of mobile locking bar and the snap close that is fixed on the cabinet door, and described snap close is provided with groove, and mobile locking bar is provided with the projection that can snap in the groove; Also being equipped with on the described cabinet simultaneously can be around the 3rd connecting lever of the 3rd bearing pin rotation, the same pull bar pin joint of an end of the 3rd connecting lever, and the other end of this pull bar is with the other end pin joint of aforementioned second connecting lever; And be fixed with a fanning strip on the 3rd connecting lever, this fanning strip is with an end pin joint of mobile locking bar.
And the pin joint axle of the pin joint axle of the described top arm and second connecting lever, pull bar and second connecting lever and the second bearing pin three preferentially are angular distribution on second connecting lever.
Above-mentioned further embodiment operation principle is as follows: under the situation of switch cubicle operate as normal, circuit breaker and isolating switch all close a floodgate, and the cabinet door is closed, the present invention is in blocking, this moment since first stopper retaining second stopper with second connecting lever on the motion path of second bearing pin rotation, make second connecting lever to rotate, the isolating switch of also promptly can't leaving behind makes its separating brake; Because isolating switch can't leave behind, second connecting lever just can't drive the 3rd connecting lever by pull bar and rotate, and the 3rd connecting lever can't rotate, and then fanning strip just can't be stirred mobile locking bar and unties door lock and make the unlatching of cabinet door.Thereby effectively prevent staff's mistakenly entering charged chamber, guarantee its life safety.
In order to open the cabinet door, must make the isolating switch separating brake, then must carry out the disjunction of circuit breaker earlier in order to make the isolating switch separating brake.Driving rocking arm by its inner disjunction mechanism when the circuit breaker disjunction rotates around main shaft, act on first connecting lever by push rod then, it is rotated around first bearing pin, force first stopper to leave original block position for second stopper, such second connecting lever just can rotate around second bearing pin, the isolating switch of also promptly can leaving behind makes its separating brake, and the present invention is release then.And after isolating switch was left behind, second connecting lever drove the 3rd connecting lever by pull bar and rotates, and unties door lock the cabinet door is opened thereby make fanning strip on the 3rd connecting lever stir mobile locking bar.
Otherwise the staff must be closed the Over-The-Counter door earlier, the isolating switch that just can close, and this is because if shut isolating switch in advance, so because mobile locking bar to the block of snap close, makes the cabinet door to close.Behind the isolating switch that then must close earlier between isolating switch and the circuit breaker, just can make breaker closing, this is because if circuit breaker closes a floodgate in advance, so since first stopper can keep off equally second stopper with second connecting lever on the motion path of second bearing pin rotation, make second connecting lever to rotate, the isolating switch of also just can't leaving behind makes its combined floodgate.
Advantage of the present invention is:
This mechanical interlocking mechanism for stationary type high voltage switch cabinet of the present invention, mainly by being located at release and the locking that mutual interference between two stoppers on first connecting lever and second connecting lever just can realize entire mechanism, mechanical chain mechanism with large amount of complex parts such as existing employing jam plate, pin, lock pins compares, simple in structure, parts are few, it is little to take the interior space of cabinet, is easy to the mechanical interlocking mechanism for stationary type high voltage switch cabinet of maintenance of equipment in the cabinet.
Description of drawings
Below in conjunction with drawings and Examples the present invention is further described:
Fig. 1 is the structural representation (omitting cabinet every lock) of a kind of specific embodiment blocking of the present invention;
Fig. 2 is Fig. 1 embodiment released state structural representation;
Fig. 3 is the structural representation of cabinet every lock among Fig. 1 embodiment.
Wherein: 1, cabinet; 2, isolating switch; 3, rocking arm; 4, switch shaft; 5, main shaft; 6, first bearing pin; 7, first connecting lever; 701, first stopper; 8, second bearing pin; 9, second connecting lever; 901, second stopper; 10, push rod; 11, top arm; 12, cabinet door; 13, mobile locking bar; 130, projection; 14, snap close; 15, the 3rd bearing pin; 16, the 3rd connecting lever; 17, pull bar; 18, fanning strip.
Embodiment
Embodiment: in conjunction with Fig. 1, Fig. 2 with Figure 3 shows that a kind of embodiment of mechanical interlocking mechanism for stationary type high voltage switch cabinet of the present invention, it comprises the rocking arm 3 that is installed on the cabinet 1 isolating switch 2 that can rotate around switch shaft 4, is connected in the circuit breaker disjunction mechanism and can rotates around main shaft 5, and is installed in cabinet door 12 and door lock thereof on the cabinet 1.The 3rd connecting lever 16 that is separately installed with first connecting lever 7 that can rotate around first bearing pin 6, second connecting lever 9 that can rotate around second bearing pin 8 on the described cabinet 1 and can rotates around the 3rd bearing pin 15.
Wherein an end pin joint of first connecting lever 7 is at a push rod 10 1 ends, and the other end of this push rod 10 is with aforementioned rocking arm 3 pin joints; One end pin joint of described second connecting lever 9 is at a top arm 11 1 ends, and these top arm 11 other end pin joints are on isolating switch 2; And be respectively equipped with first stopper 701 and second stopper 901 on first connecting lever 7 and second connecting lever 9, when breaker closing, first stopper 701 retaining second stopper 901 with second connecting lever 9 on the motion path of second bearing pin, 8 rotations.
Door lock then is made of mobile locking bar 13 and the snap close 14 that is fixed on the cabinet door 12, and described snap close 14 is provided with groove, and mobile locking bar 13 is provided with the projection 130 that can snap in the groove; Same pull bar 17 pin joints of one end of described the 3rd connecting lever 16, and the other end of this pull bar 17 is with the other end pin joint of aforementioned second connecting lever 9; And be fixed with a fanning strip 18 on the 3rd connecting lever 16, this fanning strip 18 is with an end pin joint of mobile locking bar 13.And the pin joint axle and second bearing pin, 8 threes of the pin joint axle of the described top arm 11 and second connecting lever 9, pull bar 17 and second connecting lever 9 are angular distribution on second connecting lever 9.
The present embodiment operation principle is as follows: under the situation of switch cubicle operate as normal, circuit breaker and isolating switch 2 all close a floodgate, and the cabinet door is closed, present embodiment is in blocking (as shown in Figure 1), this moment since first stopper 701 retaining second stopper 901 with second connecting lever 9 on the motion path of second bearing pin, 8 rotations, make second connecting lever 9 to rotate, the isolating switch 2 of also promptly can't leaving behind makes its separating brake; Because isolating switch 2 can't leave behind, second connecting lever 9 just can't drive the 3rd connecting lever 16 by pull bar 17 and rotate, and the 3rd connecting lever 16 can't rotate, and then fanning strip 18 just can't be stirred mobile locking bar 13 and unties door lock and make 12 unlatchings of cabinet door.Thereby effectively prevent staff's mistakenly entering charged chamber, guarantee its life safety.
In order to open cabinet door 12, must make isolating switch 2 separating brakes, then must carry out the disjunction of circuit breaker earlier in order to make isolating switch 2 separating brakes.Driving rocking arm 3 by its inner disjunction mechanism when the circuit breaker disjunction rotates around main shaft 5, act on first connecting lever 7 by push rod 10 then, it is rotated around first bearing pin 6, force first stopper 701 to leave original block position for second stopper 901, such second connecting lever 9 just can rotate around second bearing pin 8, the isolating switch 2 of also promptly can leaving behind makes its separating brake, present embodiment release (as shown in Figure 2).And after isolating switch 2 was left behind, second connecting lever 9 drove the 3rd connecting lever 16 by pull bar 17 and rotates, and unties door lock cabinet door 12 is opened thereby make fanning strip 18 on the 3rd connecting lever 16 stir mobile locking bar 13.
Otherwise the staff must be closed Over-The-Counter door 12 earlier, the isolating switch 2 that just can close, and this is because if shut isolating switch 2 in advance, so because the block of 13 pairs of snap closes 14 of mobile locking bar makes cabinet door 12 to close.Behind the isolating switch 2 that then must close earlier between isolating switch 2 and the circuit breaker, just can make breaker closing, this is because if circuit breaker closes a floodgate in advance, so since first stopper 701 can keep off equally second stopper 901 with second connecting lever 9 on the motion path of second bearing pin 901 rotation, make second connecting lever 9 to rotate, the isolating switch 2 of also just can't leaving behind makes its combined floodgate.
The described this mechanical interlocking mechanism for stationary type high voltage switch cabinet of present embodiment, mainly by being located at release and the locking that mutual interference between two stoppers on first connecting lever 7 and second connecting lever 9 just can realize entire mechanism, mechanical chain mechanism with large amount of complex parts such as existing employing jam plate, pin, lock pins compares, simple in structure, parts are few, it is little to take the interior space of cabinet, is easy to the mechanical interlocking mechanism for stationary type high voltage switch cabinet of maintenance of equipment in the cabinet.
Claims (2)
1. mechanical interlocking mechanism for stationary type high voltage switch cabinet comprises being installed on the cabinet (1) isolating switch (2) that can rotate around switch shaft (4) and being connected in the circuit breaker disjunction mechanism and can be around the rocking arm (3) of main shaft (5) rotation; It is characterized in that being separately installed with on the described cabinet (1) first connecting lever (7) that can rotate around first bearing pin (6) and can be around second connecting lever (9) of second bearing pin (8) rotation, wherein an end pin joint of first connecting lever (7) is at a push rod (10) one ends, and the other end of this push rod (10) is with aforementioned rocking arm (3) pin joint; One end pin joint of described second connecting lever (9) is at a top arm (11) one ends, and this top arm (11) other end pin joint is on isolating switch (2); And be respectively equipped with first stopper (701) and second stopper (901) on first connecting lever (7) and second connecting lever (9), when breaker closing, first stopper (701) retaining second stopper (901) with second connecting lever (9) on the motion path of second bearing pin (8) rotation.
2. mechanical interlocking mechanism for stationary type high voltage switch cabinet according to claim 1, it is characterized in that being equipped with on the described cabinet (1) cabinet door (12) and door lock, this door lock is made of mobile locking bar (13) and the snap close (14) that is fixed on the cabinet door (12), described snap close (14) is provided with groove, and mobile locking bar (13) is provided with the projection (130) that can snap in the groove; Also being equipped with on the described cabinet (1) can be around the 3rd connecting lever (16) of the 3rd bearing pin (15) rotation, the same pull bar of an end (17) pin joint of the 3rd connecting lever (16), and the other end of this pull bar (17) is with the other end pin joint of aforementioned second connecting lever (9); And be fixed with a fanning strip (18) on the 3rd connecting lever (16), an end pin joint of the same mobile locking bar of this fanning strip (18) (13); Described top arm (11) is angular distribution with the pin joint axle and second bearing pin (8) three of second connecting lever (9) with pin joint axle, the pull bar (17) of second connecting lever (9) on second connecting lever (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101365816A CN101436484B (en) | 2008-12-15 | 2008-12-15 | Mechanical interlocking mechanism for stationary type high voltage switch cabinet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101365816A CN101436484B (en) | 2008-12-15 | 2008-12-15 | Mechanical interlocking mechanism for stationary type high voltage switch cabinet |
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| Publication Number | Publication Date |
|---|---|
| CN101436484A CN101436484A (en) | 2009-05-20 |
| CN101436484B true CN101436484B (en) | 2011-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101365816A Active CN101436484B (en) | 2008-12-15 | 2008-12-15 | Mechanical interlocking mechanism for stationary type high voltage switch cabinet |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2533561Y (en) * | 2002-04-27 | 2003-01-29 | 涂大石 | Mechanical high-tension switch cabinet interlocking device |
| CN2840293Y (en) * | 2005-11-16 | 2006-11-22 | 河南森源电气股份有限公司 | Mechanical linking device between isolating switch and fixed breaker |
| CN200953292Y (en) * | 2006-09-26 | 2007-09-26 | 上海中科电气(集团)有限公司 | High-voltage switch cabinet anti-misoperating interlocking device |
-
2008
- 2008-12-15 CN CN2008101365816A patent/CN101436484B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2533561Y (en) * | 2002-04-27 | 2003-01-29 | 涂大石 | Mechanical high-tension switch cabinet interlocking device |
| CN2840293Y (en) * | 2005-11-16 | 2006-11-22 | 河南森源电气股份有限公司 | Mechanical linking device between isolating switch and fixed breaker |
| CN200953292Y (en) * | 2006-09-26 | 2007-09-26 | 上海中科电气(集团)有限公司 | High-voltage switch cabinet anti-misoperating interlocking device |
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| Publication number | Publication date |
|---|---|
| CN101436484A (en) | 2009-05-20 |
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