CN216389168U - Mechanical interlock for high-voltage switch equipment - Google Patents
Mechanical interlock for high-voltage switch equipment Download PDFInfo
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- CN216389168U CN216389168U CN202123082745.1U CN202123082745U CN216389168U CN 216389168 U CN216389168 U CN 216389168U CN 202123082745 U CN202123082745 U CN 202123082745U CN 216389168 U CN216389168 U CN 216389168U
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Abstract
The utility model discloses a mechanical interlock for high-voltage switch equipment, which comprises a fixed plate, a sliding plate and an isolating switch mechanism, wherein the sliding plate is connected with the fixed plate through a limit nail, so that the sliding plate moves left and right along the fixed plate through a sliding chute formed in the sliding plate; the fixed plate is connected with the sliding plate and then fixed on the isolating switch mechanism; the isolating switch mechanism is provided with a grounding operation hole and an isolating operation hole; the main body of the sliding plate protrudes upwards to form a first baffle and a second baffle, when the sliding plate moves towards the first direction, the second baffle is exposed out of the isolation operation hole, and when the sliding plate moves towards the second direction, the first baffle is exposed out of the grounding operation hole. The utility model has simple structure, safety, reliability, convenience and operation, lower cost and convenient popularization and use.
Description
Technical Field
The utility model relates to the technical field of mechanical locks, in particular to a mechanical interlock for high-voltage switch equipment.
Background
The mechanical interlocking is an important component of high-voltage switch equipment in an electric power system, plays an important role in reliable operation of the high-voltage switch equipment, can ensure the safety of equipment and personnel, prevents misoperation, and further can ensure stable and reliable operation of a power grid. Mechanical interlocking structure among the prior art is too complicated, easily breaks down, and spare part processing realizes the difficulty, is unfavorable for maintaining, and the cost is higher relatively.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a mechanical interlock for high-voltage switchgear, which is used for solving at least one technical problem and has the advantages of simple structure, safety, reliability, convenience in operation, low cost and convenience in popularization and use.
The embodiment of the utility model is realized by the following steps:
a mechanical interlock for high-voltage switch equipment comprises a fixed plate, a sliding plate and an isolating switch mechanism, wherein the sliding plate is connected with the fixed plate through a limiting nail, so that the sliding plate moves left and right along the fixed plate through a sliding groove formed in the sliding plate.
And the fixed plate is connected with the sliding plate and then fixed on the isolating switch mechanism.
And the isolating switch mechanism is provided with a grounding operation hole and an isolating operation hole.
The main body of the sliding plate protrudes upwards to form a first baffle and a second baffle, when the sliding plate moves towards the first direction, the second baffle is exposed out of the isolation operation hole, and when the sliding plate moves towards the second direction, the first baffle is exposed out of the grounding operation hole.
In a preferred embodiment of the present invention, the mechanical interlock for high voltage switchgear further comprises a support plate.
One end of the supporting plate is fixed on the fixing plate, and the other end of the supporting plate extends to the sliding plate.
And a limit switch is arranged on the supporting plate close to the sliding plate.
A groove is formed above the sliding plate.
The limit switch is provided with a movable roller.
The movable roller falls into or separates from the groove along with the movement of the sliding plate.
In a preferred embodiment of the present invention, the mechanical interlock for high voltage switchgear further comprises an L-shaped plate, a closing lever and a transmission lever.
The L-shaped plate and the brake closing rod are fixed below the fixing plate.
And a pressing plate penetrates through the fixing plate above the brake closing rod and is installed on the brake closing rod.
A first pressure spring is sleeved on the pressure plate.
One end of the transmission rod is rotatably connected with the brake closing rod, and the middle part of the transmission rod is rotatably connected with the L-shaped plate.
In a preferred embodiment of the present invention, the mechanical interlock for high voltage switchgear further comprises a lock knob lever.
One end of the locking button rod is arranged on the circuit breaker mechanism.
The other end of the transmission rod is rotatably connected with the other end of the locking button rod.
In a preferred embodiment of the present invention, the mechanical interlock for high voltage switchgear further comprises an indicator.
The direction board is rotationally connected with the isolating switch mechanism.
The direction board is connected with the isolating switch mechanism in a rotating mode through the shaft hole.
The sign is lid form.
The inside of sign is provided with first briquetting and second briquetting.
The upper part of the pressing plate extends into the inner side of the indication board.
And along with the left-right rotation of the indication board, the first pressing block or the second pressing block presses down the pressing plate.
In a preferred embodiment of the present invention, the mechanical interlock for high voltage switchgear further comprises a U-shaped plate and a crescent plate.
The U-shaped plate is installed on the isolating switch mechanism.
One end of the crescent plate extends into the groove of the U-shaped plate, and the other end of the crescent plate extends to the inner side of the indication board.
The inner side of the indication board is connected with a half shaft through a bolt.
Along with the rotation of sign, the semi-axis pushes down the crescent moon board.
In a preferred embodiment of the present invention, the mechanical interlock for high voltage switchgear further comprises a trip lever.
One end of the tripping lever is connected to the circuit breaker mechanism.
The sliding plate is provided with a stop groove.
The other end of the brake separating rod extends into or out of the stop groove.
In a preferred embodiment of the present invention, the mechanical interlock for high voltage switchgear further comprises a door locking lever.
One end of the door locking rod is connected with the crescent plate and moves up and down in the groove of the U-shaped plate.
The other end of the door lock lever is connected to a door structure of the circuit breaker mechanism.
And a second pressure spring is sleeved on the part, below the crescent plate, of the door locking rod.
In a preferred embodiment of the present invention, the mechanical interlock for high voltage switchgear further comprises a push button.
The sliding grooves are provided with a plurality of sliding grooves.
The main body of the sliding plate is provided with a button hole, and the button hole is positioned among the sliding grooves.
The button is fixed at the button hole through the bridge-shaped plate.
The button is sleeved with a spring.
The spring is positioned between the button hole and the sliding plate.
In a preferred embodiment of the present invention, the indicator board mechanically interlocked with the high voltage switchgear is further provided with a baffle.
The baffle plate shields or exposes the grounding operation hole and/or the isolation operation hole along with the rotation of the indicating plate.
The embodiment of the utility model has the beneficial effects that:
the utility model provides a mechanical interlock for high-voltage switchgear, which can respectively complete manual opening and closing operations of an isolating switch, a grounding switch and a cable chamber door, is simple in structure, safe, reliable, convenient and easy to operate, low in cost and convenient to popularize and use.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic front view of a mechanical interlock for a high voltage switchgear of the present invention;
FIG. 2 is a schematic view of a mechanically interlocked concealed isolating mechanism for a high voltage switchgear of the present invention;
FIG. 3 is a schematic view of a slide plate structure of a mechanical interlock for a high voltage switchgear of the present invention;
FIG. 4 is a schematic view of a mechanically interlocked indicating plate for a high voltage switchgear of the present invention;
fig. 5 is a schematic sectional view of a mechanical interlock for a high-voltage switchgear according to the present invention.
In the figure: 1. an isolation switch mechanism; 1-1, grounding operation holes; 1-2, isolating the operation hole; 2. a limit switch; 3. a limit pin; 4. a slide plate; 4-1, a chute; 4-2. a first baffle; 4-3. a second baffle; 4-4, a groove; 4-5, a stop groove; 4-6, buttonhole; 5. a brake separating rod; 6. a button; 7. a fixing plate; 8. a switch-on lever; 9. L-shaped plate; 10. a transmission rod; 11. a lock knob rod; 12. a door lock lever; 13. a second pressure spring; a U-shaped plate; 15. a crescent plate; 16. a sign; 16-1. a first briquette; 16-2. a second briquette; 16-3, shaft hole; 16-4. a baffle; 17. a support plate; 18. a half shaft; 19. pressing a plate; 20. a first pressure spring; 21. a bolt; 22. a bridge-shaped plate; 23. a circuit breaker mechanism; 24. a spring.
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. The components of embodiments of the present invention generally described and illustrated in the figures herein can be arranged and designed in a wide variety of different configurations.
Referring to fig. 1 to 5, a first embodiment of the present invention provides a mechanical interlock for a high voltage switchgear, which includes a fixed plate 7, a sliding plate 4 and a disconnecting switch mechanism 1, wherein the sliding plate 4 is connected to the fixed plate 7 through a limit pin 3, so that the sliding plate 4 moves left and right along the fixed plate 7 through a sliding slot 4-1 formed therein.
And the fixed plate 7 is connected with the sliding plate 4 and then fixed on the isolating switch mechanism 1.
And the isolating switch mechanism 1 is provided with a grounding operation hole 1-1 and an isolating operation hole 1-2.
The main body of the sliding plate 4 protrudes upwards to form a first baffle 4-2 and a second baffle 4-3, when the sliding plate 4 moves towards a first direction, the second baffle 4-3 exposes the isolation operation hole 1-2, and when the sliding plate 4 moves towards a second direction, the first baffle 4-2 exposes the grounding operation hole 1-1.
In a preferred embodiment of the utility model, the mechanical interlock for high voltage switchgear further comprises a support plate 17.
One end of the supporting plate 17 is fixed on the fixing plate 7, and the other end extends to the sliding plate 4.
And a limit switch 2 is arranged on the supporting plate 17 close to the sliding plate 4.
A groove 4-4 is arranged above the sliding plate 4.
And the limit switch 2 is provided with a movable roller.
The movable roller falls into or departs from the groove 4-4 along with the movement of the sliding plate 4.
In the preferred embodiment of the present invention, the mechanical interlock for high voltage switchgear further comprises an L-shaped plate 9, a closing lever 8 and a transmission lever 10.
The L-shaped plate 9 and the brake closing rod 8 are fixed below the fixing plate 7.
A pressing plate 19 is arranged above the switch-on rod 8 and penetrates through the fixing plate 7.
The pressing plate 19 is sleeved with a first pressure spring 20.
One end of the transmission rod 10 is rotatably connected with the brake-closing rod 8, and the middle part of the transmission rod is rotatably connected with the L-shaped plate 9.
In the preferred embodiment of the present invention, the mechanical interlock for high voltage switchgear further comprises a lock knob lever 11.
One end of the lock button rod 11 is mounted on the circuit breaker mechanism 23.
The other end of the transmission rod 10 is rotatably connected with the other end of the locking button rod 11.
In the preferred embodiment of the present invention, the mechanical interlock for a high voltage switchgear further comprises a sign 16.
The indication board 16 is rotatably connected with the isolating switch mechanism 1.
The indication board 16 is rotatably connected with the isolating switch mechanism 1 through a shaft hole 16-3.
The indication plate 16 is in the form of a cover.
The inner side of the indication board 16 is provided with a first pressing block 16-1 and a second pressing block 16-2.
The upper side of the pressure plate 19 extends into the inner side of the indication plate 16.
With the rotation of the indication board 16, the first pressing piece 16-1 or the second pressing piece 16-2 presses down the pressing plate 19.
In the preferred embodiment of the present invention, the mechanical interlock for high voltage switchgear further comprises a U-shaped plate 14 and a crescent plate 15.
The U-shaped plate 14 is mounted on the disconnector mechanism 1.
One end of the crescent plate 15 extends into the groove of the U-shaped plate 14, and the other end of the crescent plate extends to the inner side of the indication plate 16.
The inside of the indicator 16 is connected with a half shaft 18 through a bolt 21.
As the indicator 16 is turned left and right, the half shaft 18 presses down the crescent 15.
In a preferred embodiment of the present invention, the mechanical interlock for high voltage switchgear further comprises a trip lever 5.
One end of the opening lever 5 is connected to a breaker mechanism 23.
The sliding plate 4 is provided with a stop groove 4-5.
The other end of the brake separating rod 5 extends into or out of the stop groove 4-5.
In the preferred embodiment of the present invention, the mechanical interlock for high voltage switchgear further comprises a door locking lever 12.
One end of the door locking rod 12 is connected with the crescent plate 15 and moves up and down in the groove of the U-shaped plate 14.
The other end of the door-lock lever 12 is connected to the door structure of the circuit breaker mechanism 23.
The part of the door locking rod 12 below the crescent plate 15 is sleeved with a second pressure spring 13.
In a preferred embodiment of the utility model, the mechanical interlock for high-voltage switchgear further comprises a push button 6.
The sliding grooves 4-1 are provided with a plurality of grooves.
The main body of the sliding plate 4 is provided with button holes 4-6, and the button holes 4-6 are positioned among the sliding grooves 4-1.
The button 6 is fixed at the button holes 4-6 through a bridge-shaped plate 22.
The button 6 is sleeved with a spring 24.
The spring 24 is located in the portion between the buttonhole 4-6 and the slide plate 4.
In the preferred embodiment of the present invention, the mechanically interlocked indication board 16 for the high voltage switchgear is further provided with a baffle 16-4.
The baffle 16-4 shields or exposes the grounding operation hole 1-1 and/or the isolation operation hole 1-2 along with the rotation of the indicating plate 16.
Referring to fig. 1 to 5, a second embodiment of the present invention provides a method for operating a mechanical interlock for a high voltage switchgear, including:
manual opening and closing operation of the isolating switch: when the circuit breaker mechanism is opened, the opening rod 5 moves downwards to be separated from the stop groove 4-5 of the sliding plate 4, when the isolating switch is operated manually, the button 6 is pressed inwards and moves towards the first direction to drive the sliding plate 4 to move leftwards along the sliding groove 4-1 to expose the isolating operation hole 1-2 of the isolating switch mechanism 1, at the moment, the isolating switch can be operated manually to be opened and closed, when the sliding plate 4 moves leftwards, the limiting switch 2 is triggered to act, the roller of the limiting switch 2 is separated from the groove 4-4 of the sliding plate 4, and a power supply loop is cut off.
The isolating switch completes the operation: after the manual switching-on and switching-off operation of the isolating switch is completed, the button 6 is moved to the position 4-6 of the middle button hole in the second direction, and the button 6 is ejected out under the elastic force of the spring 24 and clamped at the narrow groove.
Manual opening and closing operation of the grounding switch: the button 6 is pressed inwards and moves towards the second direction, the sliding plate 4 is driven to move rightwards along the sliding groove 4-1 to expose the grounding operation hole 1-1 of the isolating switch mechanism 1, at the moment, manual opening and closing operation of the grounding switch can be carried out, when the sliding plate 4 moves rightwards, the limiting switch 2 is triggered to act, the roller of the limiting switch 2 is separated from the groove 4-4 of the sliding plate 4, and a power supply loop is cut off.
The grounding switch completes the operation: after manual switching-on and switching-off of the grounding switch are completed, the button 6 is moved to the position 4-6 of the middle button hole in the first direction, the button 6 is ejected out under the elastic force of the spring 24 and clamped at the narrow groove, and manual operation is completed.
When the circuit breaker mechanism is switched on, the switching-off rod 5 moves upwards and is inserted into a stop groove 4-5 on the sliding plate 4, at the moment, the sliding plate 4 cannot be moved leftwards and rightwards even if the button 6 is pressed inwards, and the first baffle 4-2 and the second baffle 4-3 on the sliding plate 4 respectively block a grounding operation hole 1-1 and an isolating operation hole 1-2 on the isolating switch mechanism 1, so that the isolating switch mechanism 1 cannot be manually switched on and off.
When the disconnecting switch is in a switching-off state and the indication board 16 is in a switching-off state, the pressing plate 19 coincides with the lower plane of the indication board 16 and keeps still under the elastic force of the spring 24, when the disconnecting switch is in a switching-off state or a grounding switching-on state, the indication board 16 rotates anticlockwise or clockwise by 60 degrees, at the moment, the pressing plate 19 is tangent to the first pressing block 16-1 or the second pressing block 16-2 of the indication board 16 and moves downwards by 6-8 mm, the pressing plate 19 drives the transmission rod 10 to move upwards on the left side and drives the locking torsion rod 11 to move upwards by 15-20 mm, a switching-on button of the circuit breaker mechanism 23 is clamped, and manual switching-on operation of the circuit breaker mechanism 23 is forbidden.
When the isolating switch is in isolated switching-on and switching-off and the grounding switch is in switching-off, the half shaft 18 always presses the crescent plate 15 to keep the door locking rod 12 still to lock the cable chamber door, and when the grounding switch is in switching-on (the circuit breaker mechanism is also in switching-on), the half shaft 18 releases the crescent plate 15, the door locking rod 12 moves upwards under the elasticity of the second pressure spring 13 to unlock the cable chamber door.
The embodiment of the utility model aims to protect an operation method of mechanical interlocking for high-voltage switchgear, and has the following effects:
the mechanical interlock for the high-voltage switch equipment can respectively complete the manual opening and closing operation of the isolating switch, the manual opening and closing operation of the grounding switch and the unlocking and locking of a cable chamber door, has simple structure, is safe and reliable, is convenient and easy to operate, has lower cost and is convenient to popularize and use.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the utility model and are not to be construed as limiting the utility model. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (10)
1. A mechanical interlock for high-voltage switch equipment is characterized by comprising a fixed plate (7), a sliding plate (4) and an isolating switch mechanism (1), wherein the sliding plate (4) is connected with the fixed plate (7) through a limit nail (3), so that the sliding plate (4) moves left and right along the fixed plate (7) through a sliding groove (4-1) formed in the sliding plate;
the fixed plate (7) is connected with the sliding plate (4) and then fixed on the isolating switch mechanism (1);
the isolating switch mechanism (1) is provided with a grounding operation hole (1-1) and an isolating operation hole (1-2);
the main body of the sliding plate (4) protrudes upwards to form a first baffle plate (4-2) and a second baffle plate (4-3), when the sliding plate (4) moves towards the first direction, the second baffle plate (4-3) exposes out of the isolation operation hole (1-2), and when the sliding plate (4) moves towards the second direction, the first baffle plate (4-2) exposes out of the grounding operation hole (1-1).
2. Mechanical interlock for high-voltage switchgear according to claim 1,
further comprising a support plate (17);
one end of the supporting plate (17) is fixed on the fixing plate (7), and the other end of the supporting plate extends to the sliding plate (4);
a limit switch (2) is arranged on the supporting plate (17) close to the sliding plate (4);
a groove (4-4) is arranged above the sliding plate (4);
the limit switch (2) is provided with a movable roller;
the movable roller falls into or departs from the groove (4-4) along with the movement of the sliding plate (4).
3. Mechanical interlock for high-voltage switchgear according to claim 1,
the device also comprises an L-shaped plate (9), a brake closing rod (8) and a transmission rod (10);
the L-shaped plate (9) and the brake closing rod (8) are fixed below the fixing plate (7);
a pressing plate (19) penetrates through the fixed plate (7) above the switch-on rod (8);
a first pressure spring (20) is sleeved on the pressure plate (19);
one end of the transmission rod (10) is rotatably connected with the brake closing rod (8), and the middle part of the transmission rod is rotatably connected with the L-shaped plate (9).
4. Mechanical interlock for high-voltage switchgear according to claim 3,
also comprises a lock knob rod (11);
one end of the locking button rod (11) is arranged on the circuit breaker mechanism (23);
the other end of the transmission rod (10) is rotatably connected with the other end of the locking button rod (11).
5. Mechanical interlock for high-voltage switchgear according to claim 3,
also includes a sign (16);
the indication board (16) is rotatably connected with the isolating switch mechanism (1);
the indication board (16) is in a cover shape;
a first pressing block (16-1) and a second pressing block (16-2) are arranged on the inner side of the indication plate (16);
the upper part of the pressing plate (19) extends into the inner side of the indication board (16);
along with the left-right rotation of the indication board (16), the first pressing block (16-1) or the second pressing block (16-2) presses down the pressing plate (19).
6. Mechanical interlock for high-voltage switchgear according to claim 5,
the device also comprises a U-shaped plate (14) and a crescent plate (15);
the U-shaped plate (14) is mounted on the isolating switch mechanism (1);
one end of the crescent plate (15) extends into the groove of the U-shaped plate (14), and the other end of the crescent plate extends to the inner side of the indication plate (16);
the inner side of the indication plate (16) is connected with a half shaft (18) through a bolt (21);
with the rotation of the indication plate (16), the half shaft (18) presses down the crescent moon plate (15).
7. Mechanical interlock for high-voltage switchgear according to claim 6,
the brake separating device also comprises a brake separating rod (5);
one end of the brake separating rod (5) is connected to a breaker mechanism (23);
a stop groove (4-5) is formed in the sliding plate (4);
the other end of the brake separating rod (5) extends into or out of the stop groove (4-5).
8. Mechanical interlock for high-voltage switchgear according to claim 7,
also comprises a door locking rod (12);
one end of the door locking rod (12) is connected with the crescent-shaped plate (15) and moves up and down in the groove of the U-shaped plate (14);
the other end of the door-locking lever (12) is connected to a door structure of a circuit breaker mechanism (23);
the part of the door locking rod (12) below the crescent plate (15) is sleeved with a second pressure spring (13).
9. Mechanical interlock for high-voltage switchgear according to claim 1,
also comprises a button (6);
a plurality of sliding grooves (4-1) are arranged;
a button hole (4-6) is formed in the main body of the sliding plate (4), and the button hole (4-6) is positioned among the sliding grooves (4-1);
the button (6) is fixed at the button hole (4-6) through a bridge-shaped plate (22);
a spring (24) is sleeved on the button (6);
the spring (24) is positioned at the part between the button hole (4-6) and the sliding plate (4).
10. Mechanical interlock for high-voltage switchgear according to claim 5,
a baffle plate (16-4) is also arranged on the indication plate (16);
the baffle (16-4) shields or exposes the grounding operation hole (1-1) and/or the isolating operation hole (1-2) along with the rotation of the indicating plate (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123082745.1U CN216389168U (en) | 2021-12-09 | 2021-12-09 | Mechanical interlock for high-voltage switch equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123082745.1U CN216389168U (en) | 2021-12-09 | 2021-12-09 | Mechanical interlock for high-voltage switch equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216389168U true CN216389168U (en) | 2022-04-26 |
Family
ID=81223148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123082745.1U Active CN216389168U (en) | 2021-12-09 | 2021-12-09 | Mechanical interlock for high-voltage switch equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216389168U (en) |
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2021
- 2021-12-09 CN CN202123082745.1U patent/CN216389168U/en active Active
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