CN215770976U - Mechanical interlocking structure of horizontal indoor high-voltage alternating-current vacuum circuit breaker - Google Patents
Mechanical interlocking structure of horizontal indoor high-voltage alternating-current vacuum circuit breaker Download PDFInfo
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- CN215770976U CN215770976U CN202121981131.4U CN202121981131U CN215770976U CN 215770976 U CN215770976 U CN 215770976U CN 202121981131 U CN202121981131 U CN 202121981131U CN 215770976 U CN215770976 U CN 215770976U
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Abstract
The utility model relates to the technical field of high-voltage vacuum circuit breakers, and provides a mechanical interlocking structure of a transverse indoor high-voltage alternating-current vacuum circuit breaker, which comprises a circuit breaker, wherein a closing bent plate and a separating bent plate are arranged in the circuit breaker; the circuit breaker is connected with a closing interlocking mechanism and an opening interlocking mechanism, the closing interlocking mechanism is adjacent to the closing bent plate, and the opening interlocking mechanism is adjacent to the opening bent plate; the utility model overcomes the defects of the prior art, and solves the problems that the normal use of the breaker is influenced by randomly operating the disconnecting switch in the closing state of the breaker and the safety accident is easily caused by the misoperation of the opening bent plate in the closing state of the breaker in the prior art; the utility model has reasonable design and simple structure, the closing interlocking mechanism and the opening interlocking mechanism are respectively matched with the isolating switch for use, the normal closing use of the circuit breaker and the safe use of the circuit breaker are ensured, and the opening connecting mechanism has a self-locking function, reliable operation and high practicability.
Description
Technical Field
The utility model relates to the technical field of high-voltage vacuum circuit breakers, in particular to a mechanical interlocking structure of a transverse indoor high-voltage alternating-current vacuum circuit breaker.
Background
The 12kV horizontal indoor high-voltage alternating-current vacuum circuit breaker can be used for protecting and controlling working conditions, enterprises, power plants and other electrical equipment, and the isolating switch of the circuit breaker is mainly used for isolating a power supply, so that an obvious disconnection point is formed between the power supply and the circuit breaker.
Under the closing state of the circuit breaker, the isolating switch is operated arbitrarily to influence the normal use of the circuit breaker;
under the closing state of the circuit breaker, the misoperation of the opening bending plate easily causes the occurrence of safety accidents.
Therefore, a mechanical interlocking structure of a transverse indoor high-voltage alternating-current vacuum circuit breaker is provided.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
Aiming at the defects of the prior art, the utility model provides a mechanical interlocking structure of a transverse indoor high-voltage alternating-current vacuum circuit breaker, overcomes the defects of the prior art, and solves the problems that the normal use of the circuit breaker is influenced by randomly operating an isolating switch in the closing state of the circuit breaker and the safety accident is easily caused by the misoperation of a brake-separating bent plate in the closing state of the circuit breaker; according to the utility model, by arranging the closing interlocking mechanism, in the closing state of the circuit breaker, the closing connecting lever is operated to prop against the closing stop block, and the closing connecting rod cannot move downwards, so that an external isolating switch cannot be operated to influence the circuit breaker, and the circuit breaker is kept in the closing state; when the circuit breaker is in a switching-off state, the switching-on connecting lever is operated to rotate anticlockwise to avoid a switching-on stop block, the switching-on unlocking connecting rod moves downwards to drive a switching-on limiting screw to abut against a switching-on bent plate to prevent the switching-on bent plate from rotating anticlockwise, the circuit breaker is blocked to be switched on by an external operation isolating switch, and mechanical interlocking of the circuit breaker and the external isolating switch is ensured; by arranging the opening connecting mechanism, the opening connecting lever is operated to press the opening stop block downwards in the closing state of the circuit breaker, so that the opening connecting lock rod is prevented from moving upwards, the opening bent plate can release opening action, and the circuit breaker can be disconnected by external operation; when the breaker is in a closing state, the opening crank arm is operated to rotate clockwise to avoid an opening stop block, the opening linkage rod is unlocked to move upwards, the opening limiting screw is driven to abut against the opening bent plate to prevent the opening bent plate from rotating anticlockwise, and the opening bent plate cannot be opened, so that the breaker is ensured to be used safely; the prying bar and the ejector rod are arranged, the prying bar is pressed downwards, one end of the ejector rod extends into the limiting hole, and the prying bar is locked and cannot be operated continuously; pushing the ejector rod backwards out of the limiting hole, and unlocking the prying rod; the opening connecting mechanism has a self-locking function and is safe to use; the circuit breaker switching-on interlocking mechanism is reasonable in design and simple in structure, the switching-on interlocking mechanism and the switching-off interlocking mechanism are respectively matched with the isolating switch for use, normal switching-on use of the circuit breaker and safe use of the circuit breaker are guaranteed, operation is reliable, and practicability is high.
(II) technical scheme
In order to achieve the purpose, the utility model is realized by the following technical scheme:
a mechanical interlocking structure of a horizontal indoor high-voltage alternating-current vacuum circuit breaker comprises a circuit breaker, wherein a closing bent plate and a breaking bent plate are arranged in the circuit breaker;
the circuit breaker is connected with a closing interlocking mechanism and an opening interlocking mechanism, the closing interlocking mechanism is adjacent to the closing bent plate, and the opening interlocking mechanism is adjacent to the opening bent plate;
the switching-on interlocking mechanism comprises a switching-on connecting lock rod, a switching-on fixed block and a switching-on stop block are connected to the same rod on the switching-on connecting lock rod, a switching-on limit screw is connected to the switching-on fixed block, and the switching-on limit screw movably abuts against a switching-on bent plate; a closing connecting lever is movably connected to the closing stop block;
the opening interlocking mechanism comprises an opening interlocking rod, the same rod on the opening interlocking rod is connected with an opening fixed block and an opening stop block, the opening fixed block is connected with an opening limit screw, and the opening limit screw movably pushes against an opening bent plate; the opening stop block is movably connected with an opening crank arm;
a pry bar is connected to the side end of the opening interlocking rod, a top rod is arranged on one side of the pry bar, and a reset pressure spring is sleeved on the top rod; the prying bar is provided with a limiting hole corresponding to the position of the ejector rod, and the ejector rod is used for limiting the movement of the prying bar.
Preferably, a closing pressure spring is sleeved on the closing linkage rod, a first limiting pin is arranged on the closing linkage rod, and one end of the closing pressure spring is abutted against the first limiting pin.
Preferably, a plurality of first fixing plates are arranged in the circuit breaker, the first fixing plates are movably penetrated by the closing linkage rod, and the other end of the closing pressure spring is abutted against one of the first fixing plates.
Preferably, the opening linkage rod is sleeved with an opening pressure spring, the opening linkage rod is provided with a second limit pin, and one end of the opening pressure spring is abutted against the second limit pin.
Preferably, be provided with a plurality of second fixed plates in the circuit breaker, the second fixed plate is worn to establish in the activity of separating brake interlock pole, and the other end of separating brake pressure spring is contradicted with one of them second fixed plate.
Preferably, the top of the circuit breaker is provided with a first support and a second support, the pry bar is connected to the circuit breaker through the first support, and the ejector rod is connected to the circuit breaker through the second support.
Preferably, a stud is arranged on the first support, the stud penetrates through a rod body of a prying rod, and the prying rod can move around the stud.
Preferably, one end of the prying bar, which is far away from the brake-separating interlocking bar, is provided with an operation bent plate.
(III) advantageous effects
The embodiment of the utility model provides a mechanical interlocking structure of a transverse indoor high-voltage alternating-current vacuum circuit breaker. The method has the following beneficial effects:
1. by arranging the closing interlocking mechanism, the closing connecting lever is operated to prop against the closing stop block under the closing state of the circuit breaker, and the closing interlocking lever cannot move downwards, so that an external isolating switch cannot be operated to influence the circuit breaker, and the circuit breaker is kept in the closing state; when the circuit breaker is in a switching-off state, the switching-on connecting lever is operated to rotate anticlockwise to avoid a switching-on stop block, the switching-on unlocking connecting rod moves downwards to drive a switching-on limiting screw to abut against a switching-on bent plate to prevent the switching-on bent plate from rotating anticlockwise, the circuit breaker is blocked to be switched on by an external operation isolating switch, and mechanical interlocking of the circuit breaker and the external isolating switch is ensured;
2. by arranging the opening connecting mechanism, the opening connecting lever is operated to press the opening stop block downwards in the opening state of the circuit breaker, so that the opening connecting lock rod is prevented from moving upwards, the opening bent plate can release opening action, and the circuit breaker can be disconnected by external operation; when the breaker is in a closing state, the opening crank arm is operated to rotate clockwise to avoid an opening stop block, the opening linkage rod is unlocked to move upwards, the opening limiting screw is driven to abut against the opening bent plate to prevent the opening bent plate from rotating anticlockwise, and the opening bent plate cannot be opened, so that the breaker is ensured to be used safely;
3. the prying bar and the ejector rod are arranged, the prying bar is pressed downwards, one end of the ejector rod extends into the limiting hole, and the prying bar is locked and cannot be operated continuously; pushing the ejector rod backwards out of the limiting hole, and unlocking the prying rod; the opening connecting mechanism has a self-locking function and is safe to use;
4. the circuit breaker switching-on interlocking mechanism is reasonable in design and simple in structure, the switching-on interlocking mechanism and the switching-off interlocking mechanism are respectively matched with the isolating switch for use, normal switching-on use of the circuit breaker and safe use of the circuit breaker are guaranteed, operation is reliable, and practicability is high.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the connection of the circuit breaker and the closing interlock mechanism according to the present invention;
FIG. 3 is a schematic diagram of the connection between the circuit breaker and the opening interlock mechanism according to the present invention;
fig. 4 is a schematic perspective view of a closing interlock mechanism according to the present invention;
FIG. 5 is a schematic perspective view of the separating brake interlocking mechanism according to the present invention;
FIG. 6 is a top view of FIG. 1;
in the figure: a circuit breaker 1; a closing bent plate 1.1; a brake separating bent plate 1.2; a switching-on interlocking mechanism 2; a switching-on linkage rod 2.1; a first limit pin 2.1.1; 2.2, closing a fixed block; a closing stop block 2.3; a closing limit screw 2.4; a closing crank arm 2.5; closing a pressure spring 2.6; a brake separating interlocking mechanism 3; a brake separating and locking rod 3.1; a second limit pin 3.1.1; 3.2, a brake separating fixed block; a brake separating stop block 3.3; a brake separating limit screw 3.4; 3.5 of a brake-separating crank arm; a pry bar 3.6; a limiting hole 3.6.1; operating a bent plate 3.6.2; a brake-separating pressure spring 3.7; a top rod 4; a reset pressure spring 5; a first fixing plate 6; a second fixing plate 7; a first support 8; a second bracket 9; a stud 10.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to the attached drawings 1-6, a mechanical interlocking structure of a horizontal indoor high-voltage alternating current vacuum circuit breaker comprises a circuit breaker 1, wherein a closing bent plate 1.1 and a breaking bent plate 1.2 are arranged in the circuit breaker 1;
the circuit breaker 1 is connected with a closing interlocking mechanism 2 and an opening interlocking mechanism 3, the closing interlocking mechanism 1 is adjacent to a closing bent plate 1.1, and the opening interlocking mechanism 3 is adjacent to an opening bent plate 1.2;
the closing interlocking mechanism 2 comprises a closing linkage rod 2.1, a closing fixed block 2.2 and a closing stop block 2.3 are connected to the same rod on the closing linkage rod 2.1, a closing limit screw 2.4 is connected to the closing fixed block 2.2, and the closing limit screw 2.4 movably abuts against a closing bent plate 1.1; a closing connecting lever 2.5 is movably connected to the closing stop block 2.3;
the brake separating interlocking mechanism 3 comprises a brake separating interlocking rod 3.1, a brake separating fixed block 3.2 and a brake separating stop block 3.3 are connected to the same rod on the brake separating interlocking rod 3.1, a brake separating limit screw 3.4 is connected to the brake separating fixed block 3.2, and the brake separating limit screw 3.4 movably abuts against the brake separating bent plate 1.2; the opening brake stop block 3.3 is movably connected with an opening brake crank arm 3.5;
a pry bar 3.6 is connected to the side end of the opening interlocking bar 3.1, an ejector rod 4 is arranged on one side of the pry bar 3.6, and a reset pressure spring 5 is sleeved on the ejector rod 4; the prying bar is provided with a limiting hole 3.6.1 corresponding to the position of the ejector rod, and the ejector rod 4 movably limits the prying bar 3.6.
In this embodiment, a closing pressure spring 2.6 is sleeved on the closing interlocking rod 2.1, a first limiting pin 2.1.1 is arranged on the closing interlocking rod 2.1, and one end of the closing pressure spring 2.6 is abutted against the first limiting pin 2.1.1.
In this embodiment, the circuit breaker 1 is provided with a plurality of first fixing plates 6, the first fixing plates 6 are movably inserted into the closing linkage rod 2.1, and the other end of the closing pressure spring 2.6 abuts against one of the first fixing plates 6.
In this embodiment, the opening pressure spring 3.7 is sleeved on the opening lock lever 3.1, the second limit pin 3.1.1 is arranged on the opening lock lever 3.1, and one end of the opening pressure spring 3.7 is abutted against the second limit pin 3.1.1.
In this embodiment, be provided with a plurality of second fixed plates 7 in the circuit breaker 1, second fixed plate 7 is worn to establish in the activity of separating brake interlock pole 3.1, and the other end of separating brake pressure spring 3.7 contradicts with one of them second fixed plate 7.
In this embodiment, circuit breaker 1 top is provided with first support 8 and second support 9, and pinch bar 3.6 connects on circuit breaker 1 through first support 8, and ejector pin 4 connects on circuit breaker 1 through second support 9.
In this embodiment, a stud 10 is disposed on the first bracket 8, the stud 10 penetrates through a rod body of the pry bar 3.6, and the pry bar 3.6 can move around the stud 10.
In this embodiment, an operation bent plate 3.6.2 is disposed at one end of the pry bar 3.6 far away from the opening interlock bar 3.1.
The specific implementation is as follows;
the key for realizing mechanical interlocking is to design two interlocking mechanisms, namely a closing interlocking mechanism 2 and an opening interlocking mechanism 3;
referring to fig. 1, the operation sequence of the closing interlock mechanism 2 is as follows:
1) and closing state of circuit breaker
1.1) operating a closing connecting lever 2.5 to jack a closing stop 2.3 to block a closing linkage rod 2.1 from moving downwards, so that an external isolating switch cannot operate to influence the circuit breaker 1, and the circuit breaker 1 keeps a closing state;
2) the opening state of the circuit breaker;
2.1), operating the closing connecting lever 2.5 to rotate anticlockwise, avoiding the closing stop block 2.3, and unlocking the closing linkage lever 2.1;
2.2) and the closing interlocking rod 2.1 move downwards to drive the closing limiting screw 2.4 to move downwards synchronously;
2.3), closing a floodgate stop screw 2.4 to the stroke after, block closing a floodgate bent plate 1.1 anticlockwise hour-axial rotation, external operation isolator does not influence circuit breaker 1 and closes a floodgate, guarantees the continuation of circuit breaker 1 and closes a floodgate.
Referring to fig. 2, the operation sequence of the opening mechanical interlock 3 is as follows:
1) and the opening state of the circuit breaker:
1.1), operating a brake-separating crank arm 3.5 to press a brake-separating stop block 3.3 downwards to block the brake-separating linkage rod 3.1 from moving upwards, releasing the brake-separating action by a brake-separating bent plate 1.2, and disconnecting the circuit breaker 1 by external operation;
2) and the closing state of the circuit breaker:
2.1) operating the opening connecting lever 3.5 to rotate clockwise to avoid the opening stop block 3.3 to unlock the opening connecting rod 3.1;
2.2) the opening lock connecting rod 3.1 moves upwards to drive the opening limit screw 3.4 to move upwards synchronously;
3.3) and the opening limit screw 3.4, and the opening bent plate 1.2 is stopped from rotating anticlockwise after reaching the stroke, so that the opening bent plate 1.2 cannot be opened, and the safe use of the circuit breaker 1 is ensured.
Referring to fig. 3, the opening interlocking mechanism 3 is self-locking:
1) self-locking: the prying bar 3.6 is operated to move downwards, one end of the ejector rod 4 extends into the limiting hole 3.6.1, so that the prying bar 3.6 is locked and cannot be operated continuously;
2) unlocking: the ejector rod 4 is pushed out of the limiting hole 3.6.1 backwards, and then the pry bar 3.6 is unlocked.
This achieves the mechanical interlocking function we need.
It is noted that, in this document, relational terms such as closing and opening linkages, and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. A mechanical interlocking structure of a horizontal indoor high-voltage alternating-current vacuum circuit breaker comprises a circuit breaker, wherein a closing bent plate and a breaking bent plate are arranged in the circuit breaker;
the method is characterized in that: the circuit breaker is connected with a closing interlocking mechanism and an opening interlocking mechanism, the closing interlocking mechanism is adjacent to the closing bent plate, and the opening interlocking mechanism is adjacent to the opening bent plate;
the switching-on interlocking mechanism comprises a switching-on connecting lock rod, a switching-on fixed block and a switching-on stop block are connected to the same rod on the switching-on connecting lock rod, a switching-on limit screw is connected to the switching-on fixed block, and the switching-on limit screw movably abuts against a switching-on bent plate; a closing connecting lever is movably connected to the closing stop block;
the opening interlocking mechanism comprises an opening interlocking rod, the same rod on the opening interlocking rod is connected with an opening fixed block and an opening stop block, the opening fixed block is connected with an opening limit screw, and the opening limit screw movably pushes against an opening bent plate; the opening stop block is movably connected with an opening crank arm;
a pry bar is connected to the side end of the opening interlocking rod, a top rod is arranged on one side of the pry bar, and a reset pressure spring is sleeved on the top rod; the prying bar is provided with a limiting hole corresponding to the position of the ejector rod, and the ejector rod is used for limiting the movement of the prying bar.
2. The mechanical interlocking structure of a transverse indoor high voltage ac vacuum circuit breaker according to claim 1, wherein: the closing linkage rod is sleeved with a closing pressure spring, a first limiting pin is arranged on the closing linkage rod, and one end of the closing pressure spring is abutted against the first limiting pin.
3. The mechanical interlocking structure of a transverse indoor high voltage ac vacuum circuit breaker according to claim 2, wherein: the circuit breaker is provided with a plurality of first fixed plates, the first fixed plates are penetrated through by the closing linkage rod in a movable mode, and the other end of the closing pressure spring is abutted to one of the first fixed plates.
4. The mechanical interlocking structure of a transverse indoor high voltage ac vacuum circuit breaker according to claim 1, wherein: the separating brake linkage rod is sleeved with a separating brake pressure spring, a second limiting pin is arranged on the separating brake linkage rod, and one end of the separating brake pressure spring is abutted against the second limiting pin.
5. The mechanical interlock structure of a transverse indoor high voltage ac vacuum circuit breaker according to claim 4, wherein: the circuit breaker is provided with a plurality of second fixed plates, the second fixed plates are movably penetrated through by the opening linkage rod, and the other end of the opening pressure spring is abutted against one of the second fixed plates.
6. The mechanical interlocking structure of a transverse indoor high voltage ac vacuum circuit breaker according to claim 1, wherein: the top of the circuit breaker is provided with a first support and a second support, the pry bar is connected to the circuit breaker through the first support, and the ejector rod is connected to the circuit breaker through the second support.
7. The mechanical interlock structure of a transverse indoor high voltage ac vacuum circuit breaker according to claim 6, wherein: the first support is provided with a stud, the stud penetrates through a rod body of the prying rod, and the prying rod can move around the stud.
8. The mechanical interlock structure of a transverse indoor high voltage ac vacuum circuit breaker according to claim 7, wherein: and an operation bent plate is arranged at one end of the prying bar, which is far away from the brake-separating interlocking bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121981131.4U CN215770976U (en) | 2021-08-23 | 2021-08-23 | Mechanical interlocking structure of horizontal indoor high-voltage alternating-current vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121981131.4U CN215770976U (en) | 2021-08-23 | 2021-08-23 | Mechanical interlocking structure of horizontal indoor high-voltage alternating-current vacuum circuit breaker |
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| Publication Number | Publication Date |
|---|---|
| CN215770976U true CN215770976U (en) | 2022-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121981131.4U Active CN215770976U (en) | 2021-08-23 | 2021-08-23 | Mechanical interlocking structure of horizontal indoor high-voltage alternating-current vacuum circuit breaker |
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| CN (1) | CN215770976U (en) |
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- 2021-08-23 CN CN202121981131.4U patent/CN215770976U/en active Active
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