CN116884801A - Plug interlocking device for vacuum circuit breaker - Google Patents
Plug interlocking device for vacuum circuit breaker Download PDFInfo
- Publication number
- CN116884801A CN116884801A CN202310764422.5A CN202310764422A CN116884801A CN 116884801 A CN116884801 A CN 116884801A CN 202310764422 A CN202310764422 A CN 202310764422A CN 116884801 A CN116884801 A CN 116884801A
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- plate
- fixed box
- movable
- circuit breaker
- box
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- 210000002105 tongue Anatomy 0.000 claims abstract description 33
- 238000000926 separation method Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 7
- 230000007246 mechanism Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/46—Interlocking mechanisms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/6606—Terminal arrangements
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- Patch Boards (AREA)
Abstract
The invention discloses a plug interlocking device for a vacuum circuit breaker, and relates to the technical field of circuit breaker accessories. The invention comprises a movable box and a fixed box positioned below the movable box, wherein T-shaped columns are symmetrically and fixedly arranged on two end faces of the movable box, and U-shaped grooves for clearance fit of the T-shaped columns are formed in the upper end positions of end plates of the fixed box; the two sides of the T-shaped column are symmetrically provided with clamping tongues, the two clamping tongues are arranged in a staggered manner, one side of the upper end of each clamping tongue is provided with a buckling groove for buckling with the T-shaped column, one side of the lower end of each clamping tongue is fixedly connected with a gear disc through a rotating column, and the rotating column is sleeved on the end plate of the fixed box in a sliding manner; a movable plate is arranged between the two gear plates at the same end of the fixed box, and racks respectively meshed with the two gear plates are arranged on two side surfaces of the movable plate. When the breaker body moves forwards and backwards, the locking between the movable box and the fixed box is firmer, and meanwhile, the device can realize the automatic separation between the movable box and the fixed box, so that the maintenance and the replacement are convenient.
Description
Technical Field
The invention belongs to the technical field of breaker accessories, and particularly relates to a plug interlocking device for a vacuum breaker.
Background
The circuit breaker may be divided into a fixed type and a withdrawable type, the withdrawable type having a case called a cradle to facilitate maintenance and repair of the circuit breaker body, the withdrawable type circuit breaker having a structure allowing the advancing and withdrawing of the circuit breaker body, various electric devices including the circuit breaker and the like being provided in a distribution board through which the electric devices are managed to drive or control a power station, a transformer substation and the like and a driving motor; further, the circuit breaker has an operating position in which power source side terminals and load side terminals of the circuit breaker are connected to terminals of the cradle to supply voltage and current, and a testing position in which those terminals of the circuit breaker are separated from the terminals of the cradle to test only switching operations of the circuit breaker body.
In order to transmit an electrical signal to a circuit breaker in which the circuit breaker body is in an operating position or a test position to turn the circuit breaker on or off, a means for applying power to the circuit breaker body is required; for this purpose, a control circuit plug is installed in the distribution board and a control circuit connector is installed in the breaker main body such that the control circuit plug is connected to or disconnected from the control circuit connector; if the circuit breaker main body is pushed in or pulled out in a state in which the control circuit plug and the control circuit connector are separated, or if the control circuit plug is pulled out from the control circuit connector in an operating position, the circuit breaker may not operate (even in an emergency), which may cause occurrence of an accident; therefore, when the breaker body is pushed in or pulled out or in an operating position, the breaker should be managed such that the control circuit plug cannot be pulled out from the control circuit connector to avoid accident risk, and in the prior art, although the corresponding interlock mechanism is designed to prevent the risk of pulling out the control circuit plug from the control circuit connector, the following disadvantages still exist in actual use of the existing interlock device:
1. in the existing interlocking mechanism, when the main mode for locking the control circuit plug is adopted, the locking of the locking control circuit plug by the clamping tongue is realized under the reset action of the spring through the cooperation of the spring and the clamping tongue on the control circuit connector, but in the locking mode, when the circuit breaker moves forwards and backwards, the clamping tongue is easy to loose, so that the locking is unstable;
2. the existing interlocking mechanism is arranged in a narrow space, and the interlocking mechanism can lock the control circuit plug and the control circuit connector, so that the interlocking mechanism is inconvenient to separate the control circuit plug from the control circuit connector, and is inconvenient for a worker to maintain and replace;
accordingly, there is a need for improvements in the art to address the above-described problems.
Disclosure of Invention
The invention aims to provide a plug interlocking device for a vacuum circuit breaker, which has good interlocking effect and is convenient to maintain and replace, and solves the problems that the existing interlocking device for the plug of the circuit breaker has poor interlocking effect and is inconvenient to maintain and replace in actual use.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a plug interlocking device for a vacuum circuit breaker, which comprises a movable box and a fixed box positioned below the movable box, wherein T-shaped columns are symmetrically and fixedly arranged on two end faces of the movable box, and a U-shaped groove for clearance fit of the T-shaped columns is formed in the upper end position of an end plate of the fixed box;
the two sides of the T-shaped column are symmetrically provided with clamping tongues, the two clamping tongues are arranged in a staggered manner, one side of the upper end of each clamping tongue is provided with a buckling groove for buckling with the T-shaped column, one side of the lower end of each clamping tongue is fixedly connected with a gear disc through a rotating column, and the rotating column is sleeved on the end plate of the fixed box in a sliding manner;
a movable plate is arranged between the two gear plates at the same end of the fixed box, and racks which are respectively meshed with the two gear plates are arranged on two side surfaces of the movable plate;
the outer side of the movable plate is provided with a pressing plate, the upper end of one side of the pressing plate is fixedly provided with a positioning column, the lower end of the movable plate is provided with a through hole for inserting the positioning column, one side surface of the lower end of the pressing plate is symmetrically and fixedly provided with guide rods, the other ends of the two guide rods are fixedly connected to the same limiting plate, the guide rods are in sliding sleeve joint with one side plate of the L-shaped plate, the guide rods at the position between the limiting plate and the L-shaped plate are in sliding sleeve joint with a first spring, and one end of the other side plate of the L-shaped plate is fixedly connected to the outer side surface of the fixed box;
the position is provided with first right-angle trapezoidal plate between clamp plate and the fixed box, and the inclined plane of first right-angle trapezoidal plate is located the front side of fixed box.
Further, a first fixing piece is fixedly arranged in the middle of the bottom surface of the clamping tongue, a second fixing piece is fixedly arranged on the inner wall of the fixed box end at one side of the lower end of the clamping tongue, and the first fixing piece and the second fixing piece are connected through a second spring.
Further, the top surface fixedly connected with electric wire of activity box has set firmly the electric slot on the bottom surface of activity box, is provided with on the interior bottom surface of fixed box and is used for with electric slot complex electric plug.
Further, the inside of the fixing box at two sides of the electric plug column is fixedly provided with a baffle plate.
Further, the lower end positions of the front side and the rear side of the outer wall of the fixed box are fixedly provided with first mounting plates, and first mounting holes are formed in the first mounting plates.
Further, a second right-angle trapezoidal plate is arranged below the movable plate, an inclined surface of the second right-angle trapezoidal plate is positioned at the front side of the fixed box, and a rectangular plate is integrally formed at the front end of the second right-angle trapezoidal plate;
the lower extreme integrated into one piece of fly leaf is provided with the semicircle piece, and the bottom surface of semicircle piece supports to close on the top surface of second right angle trapezoidal plate and rectangular plate connector.
Further, a first right-angle trapezoidal plate is fixedly arranged at the lower end position of one side surface of the second right-angle trapezoidal plate and the rectangular plate connector, and a supporting rod is fixedly arranged on the rear end surface of the first right-angle trapezoidal plate and the second right-angle trapezoidal plate connector.
Further, the rear end face of the supporting rod is fixedly provided with a second mounting plate, and the four corner positions of the second mounting plate are provided with second mounting holes.
Further, a T-shaped block is fixedly arranged at the lower end of one side surface of the movable plate, and a sliding groove for clearance fit of the T-shaped block is formed in the end surface of the fixed box in the vertical direction.
Further, a top column is fixedly arranged on the top surface of the movable plate.
The invention has the following beneficial effects:
1. when the circuit breaker is used, under the tensile force of the second spring, the buckling grooves on the clamping tongues are buckled on the T-shaped columns, so that the preliminary limiting and clamping of the movable box and the fixed box are realized, when the circuit breaker integrally moves forwards, the pressing plate is separated from the first right-angle trapezoidal plate, under the reset of the first spring, the pressing plate moves to one side of the movable plate, meanwhile, the positioning columns are inserted into the through holes, the limiting of the movable plate is realized, and because the racks on the movable plate are meshed with the gear plates, the two gear plates are synchronously limited after the movable plate is limited, the corresponding clamping tongues are clamped, and the clamping tongues can lock the T-shaped columns when the circuit breaker moves forwards and backwards, so that the movable box and the fixed box are matched stably without separation.
2. When the movable box is required to be taken down from the fixed box by a worker, so that the worker only needs to push the circuit breaker backwards when the worker maintains and replaces the movable box, and in the pushing process, the whole movable plate is pushed upwards by the inclined surface of the second right-angle trapezoidal plate.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view showing the overall structure of a plug interlock for a vacuum circuit breaker;
FIG. 2 is a rear elevational view of the FIG. 1 structure;
FIG. 3 is a vertical cross-sectional view of the structure of FIG. 1 in the left-right direction;
FIG. 4 is a vertical cross-sectional view of the T-post position in the fore-aft direction;
FIG. 5 is a diagram of the movable and fixed cassettes to be mated;
FIG. 6 is a schematic view of the overall structure of the latch;
FIG. 7 is a schematic view of the overall structure of the movable plate;
FIG. 8 is a schematic view of the overall structure of the platen;
fig. 9 is a schematic view of the mating of the first right angle trapezoidal plate and the second right angle trapezoidal plate.
In the drawings, the list of components represented by the various numbers is as follows:
1. a movable box; 2. a fixed box; 3. a movable plate; 4. a second right angle trapezoidal plate; 5. a clamping tongue; 6. a pressing plate; 101. an electric wire; 102. a T-shaped column; 103. an electrical socket; 201. a U-shaped groove; 202. a first mounting plate; 203. a sliding groove; 204. an L-shaped plate; 205. an electric plug; 206. a partition plate; 301. a through hole; 302. a T-shaped block; 303. a rack; 304. a top column; 305. a semicircle block; 401. a rectangular plate; 402. a first right-angle trapezoidal plate; 403. a support rod; 404. a second mounting plate; 501. a buckling groove; 502. a first fixing piece; 503. a second spring; 504. a second fixing piece; 505. a gear plate; 601. positioning columns; 602. a guide rod; 603. a first spring; 2021. a first mounting hole; 4041. a second mounting hole; 5051. rotating the column; 6021. and a limiting plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Referring to fig. 1 to 6, the invention discloses a plug interlocking device for a vacuum circuit breaker, which comprises a movable box 1 and a fixed box 2 positioned below the movable box 1, wherein two end faces of the movable box 1 are symmetrically and fixedly provided with T-shaped columns 102, and a U-shaped groove 201 for clearance fit of the T-shaped columns 102 is formed in the upper end position of an end plate of the fixed box 2, so that the limit of the T-shaped columns 102 is realized, and the fit between the movable box 1 and the fixed box 2 is completed;
the top surface of the movable box 1 is fixedly connected with an electric wire 101 so as to supply electric energy to the movable box 1, an electric slot 103 is fixedly arranged on the bottom surface of the movable box 1, and an electric plug column 205 matched with the electric slot 103 is arranged on the inner bottom surface of the fixed box 2 so as to realize electric connection between the movable box 1 and the fixed box 2;
the inside of the fixed box 2 at two sides of the electric plug 205 is fixedly provided with a baffle 206 so as to play a role of safety protection;
the lower end positions of the front side and the rear side of the outer wall of the fixed box 2 are fixedly provided with first mounting plates 202, the first mounting plates 202 are provided with first mounting holes 2021, and the first mounting holes 2021 are convenient for the fixed box 2 to be fixedly connected to the top surface of the breaker body through screws;
the two sides of the T-shaped column 102 are symmetrically provided with the clamping tongues 5, the two clamping tongues 5 are arranged in a staggered way, and one side of the upper end of the clamping tongue 5 is provided with a buckling groove 501 for buckling with the T-shaped column 102;
the middle part of the bottom surface of the clamping tongue 5 is fixedly provided with a first fixing piece 502, the inner wall of the end of the fixing box 2 at one side of the lower end of the clamping tongue 5 is fixedly provided with a second fixing piece 504, and the first fixing piece 502 and the second fixing piece 504 are connected through a second spring 503 so as to realize a pulling force on the clamping tongue 5 and maintain the stability of the matching between the clamping tongue 5 and the T-shaped column 102;
when the above-mentioned setting is installed at the staff, the staff aligns T shape post 102 in U-shaped groove 201 earlier, then presses down movable box 1, makes and accomplishes the cooperation between electric slot 103 and the electric post 205, and under this extrusion effect, T shape post 102 extrudees two block tongues 5 to the outside and rotates, and under the effect that second spring 503 resets again, finally realizes T shape post 102 block in catching groove 501, accomplishes preliminary closure.
Referring to fig. 2 to 9, a gear plate 505 is fixedly connected to a side surface of the lower end of the latch 5 through a rotation post 5051, and the rotation post 5051 is slidably sleeved on an end plate of the fixed box 2, so that the latch 5 rotates around the rotation post 5051;
a movable plate 3 is arranged between the two gear plates 505 at the same end of the fixed box 2, racks 303 which are respectively meshed with the two gear plates 505 are arranged on two side surfaces of the movable plate 3, and the arrangement can realize synchronous rotation of the two gear plates 505 when the movable plate 3 moves;
the outer side of the movable plate 3 is provided with a pressing plate 6, the upper end of one side of the pressing plate 6 is fixedly provided with a positioning column 601, the lower end of the movable plate 3 is provided with a through hole 301 for inserting the positioning column 601, one side surface of the lower end of the pressing plate 6 is symmetrically and fixedly provided with guide rods 602, the other ends of the two guide rods 602 are fixedly connected to the same limiting plate 6021, the guide rods 602 are in sliding sleeve joint with one side plate of the L-shaped plate 204, the limiting guide effect is achieved for the movement of the pressing plate 6, the guide rods 602 at the position between the limiting plate 6021 and the L-shaped plate 204 are in sliding sleeve joint with a first spring 603, and one end of the other side plate of the L-shaped plate 204 is fixedly connected to the outer side surface of the fixed box 2;
a first right-angle trapezoidal plate 402 is arranged between the pressing plate 6 and the fixed box 2, and the inclined surface of the first right-angle trapezoidal plate 402 is positioned at the front side of the fixed box 2, so that the pressing plate 6 can be outwards supported by the first right-angle trapezoidal plate 402;
when the circuit breaker is used, the pressing plate 6 is separated from the first right-angle trapezoidal plate 402 when the circuit breaker body moves forwards, the guide rod 602 drives the pressing plate 6 to move towards the side of the fixed box 2 under the action of resetting of the first spring 603, and then the positioning column 601 is inserted into the through hole 301 to achieve limiting of the movable plate 3, rotation of the two gear plates 505 is avoided, locking of the T-shaped column 102 by the clamping tongue 5 is achieved, and when the circuit breaker body moves backwards, the pressing plate 6 is outwards spread by the inclined surface of the first right-angle trapezoidal plate 402, so that separation between the positioning column 601 and the through hole 301 is achieved.
Referring to fig. 3, 4, 6, 7 and 9, a second right-angle trapezoidal plate 4 is disposed below the movable plate 3, and an inclined surface of the second right-angle trapezoidal plate 4 is located at the front side of the fixed box 2, and a rectangular plate 401 is integrally formed at the front end of the second right-angle trapezoidal plate 4;
the lower end of the movable plate 3 is integrally formed and provided with a semicircular block 305, and the bottom surface of the semicircular block 305 is abutted against the top surface of the connecting body of the second right-angle trapezoidal plate 4 and the rectangular plate 401, so that the relative movement between the movable plate 3 and the second right-angle trapezoidal plate 4 is more convenient;
a first right-angle trapezoidal plate 402 is fixedly arranged at the lower end position of one side surface of the connecting body of the second right-angle trapezoidal plate 4 and the rectangular plate 401, and a supporting rod 403 is fixedly arranged on the rear end surface of the connecting body of the first right-angle trapezoidal plate 402 and the second right-angle trapezoidal plate 4;
the rear end face of the supporting rod 403 is fixedly provided with a second mounting plate 404, the four corner positions of the second mounting plate 404 are provided with second mounting holes 4041, the second mounting holes 4041 are fixedly connected to a distribution board through screws, and the distribution board is connected with the circuit breaker body through a movable trolley;
a T-shaped block 302 is fixedly arranged at the lower end of one side surface of the movable plate 3, a sliding groove 203 for clearance fit of the T-shaped block 302 is formed in the end surface of the fixed box 2 along the vertical direction, the arrangement can play a role in limiting and guiding the movement of the movable plate 3, and a jack post 304 is fixedly arranged on the top surface of the movable plate 3;
when the circuit breaker is used, after the positioning column 601 and the through hole 301 are separated, when the circuit breaker body moves backwards, the semicircular block 305 moves upwards under the guiding and extrusion of the inclined surface of the second right-angle trapezoid board 4, and the movable board 3 moves upwards because of the meshing arrangement between the gear plates 505 and the racks 303, so that the synchronous reverse rotation of the two gear plates 505 is realized, the rotation column 5051 drives the clamping tongue 5 to rotate, the buckling groove 501 is separated from the T-shaped column 102, and meanwhile, the top column 304 can jack up the T-shaped column 102 upwards while the movable board 3 moves upwards, so that the automatic separation between the movable box 1 and the fixed box 2 is realized.
The foregoing is only a preferred embodiment of the present invention, and the present invention is not limited thereto, and any modification, equivalent replacement, and improvement of some of the technical features described in the foregoing embodiments are all within the scope of the present invention.
Claims (10)
1. Plug interlock for vacuum circuit breaker, including movable box (1) and be located fixed box (2) of movable box (1) below, its characterized in that: t-shaped columns (102) are symmetrically and fixedly arranged on two end faces of the movable box (1), and U-shaped grooves (201) for clearance fit of the T-shaped columns (102) are formed in the upper end positions of end plates of the fixed box (2);
two sides of the T-shaped column (102) are symmetrically provided with clamping tongues (5), the two clamping tongues (5) are arranged in a staggered mode, a buckling groove (501) for buckling with the T-shaped column (102) is formed in one side of the upper end of the clamping tongues (5), a gear disc (505) is fixedly connected to one side of the lower end of the clamping tongues (5) through a rotating column (5051), and the rotating column (5051) is in sliding sleeving connection with an end plate of the fixed box (2);
a movable plate (3) is arranged between two gear plates (505) at the same end of the fixed box (2), and racks (303) which are respectively meshed with the two gear plates (505) are arranged on two side surfaces of the movable plate (3);
the movable plate is characterized in that a pressing plate (6) is arranged on the outer side of the movable plate (3), a positioning column (601) is fixedly arranged at the upper end of one side of the pressing plate (6), a through hole (301) for inserting the positioning column (601) is formed in the lower end position of the movable plate (3), guide rods (602) are symmetrically and fixedly arranged on one side face of the lower end of the pressing plate (6), the other ends of the two guide rods (602) are fixedly connected to the same limiting plate (6021), the guide rods (602) are in sliding sleeve connection with one side plate of the L-shaped plate (204), a first spring (603) is in sliding sleeve connection with the guide rods (602) at the position between the limiting plate (6021) and the L-shaped plate (204), and one end of the other side plate of the L-shaped plate (204) is fixedly connected to the outer side face of the fixed box (2);
a first right-angle trapezoidal plate (402) is arranged between the pressing plate (6) and the fixed box (2), and the inclined surface of the first right-angle trapezoidal plate (402) is positioned on the front side of the fixed box (2).
2. The plug interlock for a vacuum circuit breaker according to claim 1, wherein: the middle part of the bottom surface of the clamping tongue (5) is fixedly provided with a first fixing piece (502), the inner wall of the end of the fixing box (2) at one side of the lower end of the clamping tongue (5) is fixedly provided with a second fixing piece (504), and the first fixing piece (502) and the second fixing piece (504) are connected through a second spring (503).
3. The plug interlock for a vacuum circuit breaker according to claim 1 or 2, wherein: the electric socket is characterized in that the top surface of the movable box (1) is fixedly connected with an electric wire (101), an electric slot (103) is fixedly arranged on the bottom surface of the movable box (1), and an electric plug column (205) matched with the electric slot (103) is arranged on the inner bottom surface of the fixed box (2).
4. The plug interlock for a vacuum circuit breaker as recited in claim 3, wherein: and a baffle plate (206) is fixedly arranged inside the fixed box (2) at two sides of the electric plug column (205).
5. The plug interlock for a vacuum circuit breaker as recited in claim 3, wherein: the lower end positions of the front side and the rear side of the outer wall of the fixed box (2) are fixedly provided with first mounting plates (202), and first mounting holes (2021) are formed in the first mounting plates (202).
6. The plug interlock for a vacuum circuit breaker according to claim 1, 2, 4 or 5, wherein: a second right-angle trapezoidal plate (4) is arranged below the movable plate (3), the inclined surface of the second right-angle trapezoidal plate (4) is positioned at the front side of the fixed box (2), and a rectangular plate (401) is integrally formed at the front end of the second right-angle trapezoidal plate (4);
the lower extreme integrated into one piece of fly leaf (3) is provided with semicircle piece (305), and the bottom surface of semicircle piece (305) supports to be fit on the top surface of second right angle trapezoidal plate (4) and rectangular plate (401) connector.
7. The plug interlock for a vacuum circuit breaker according to claim 6, wherein: the lower end position of one side surface of the connecting body of the second right-angle trapezoidal plate (4) and the rectangular plate (401) is fixedly provided with a first right-angle trapezoidal plate (402), and the rear end surface of the connecting body of the first right-angle trapezoidal plate (402) and the second right-angle trapezoidal plate (4) is fixedly provided with a supporting rod (403).
8. The plug interlock for a vacuum circuit breaker according to claim 7, wherein: the rear end face of the supporting rod (403) is fixedly provided with a second mounting plate (404), and the four corner positions of the second mounting plate (404) are respectively provided with a second mounting hole (4041).
9. The plug interlock for a vacuum circuit breaker according to claim 7 or 8, wherein: t-shaped blocks (302) are fixedly arranged at the lower end of one side surface of the movable plate (3), and sliding grooves (203) used for clearance fit of the T-shaped blocks (302) are formed in the end surface of the fixed box (2) along the vertical direction.
10. The plug interlock for a vacuum circuit breaker according to claim 9, wherein: the top surface of the movable plate (3) is fixedly provided with a jack post (304).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310764422.5A CN116884801A (en) | 2023-06-27 | 2023-06-27 | Plug interlocking device for vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310764422.5A CN116884801A (en) | 2023-06-27 | 2023-06-27 | Plug interlocking device for vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116884801A true CN116884801A (en) | 2023-10-13 |
Family
ID=88265361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310764422.5A Pending CN116884801A (en) | 2023-06-27 | 2023-06-27 | Plug interlocking device for vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116884801A (en) |
-
2023
- 2023-06-27 CN CN202310764422.5A patent/CN116884801A/en active Pending
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