CN109859972B - Forced interlocking structure for vacuum cabinet - Google Patents
Forced interlocking structure for vacuum cabinet Download PDFInfo
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- CN109859972B CN109859972B CN201811532113.0A CN201811532113A CN109859972B CN 109859972 B CN109859972 B CN 109859972B CN 201811532113 A CN201811532113 A CN 201811532113A CN 109859972 B CN109859972 B CN 109859972B
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Abstract
The invention discloses a forced interlocking structure for a vacuum cabinet, which comprises an isolation cam, an isolation interlocking rod, a breaker cam, an interlocking bolt, a grounding cam and a grounding interlocking rod, wherein the isolation cam, the breaker cam and the grounding cam are respectively fixed on an isolation main shaft, a breaker main shaft and a grounding main shaft, a first reset spring is arranged between the isolation interlocking rod and a first guide device, the top end of the isolation interlocking rod is contacted with the rim of the isolation cam, the interlocking bolt is installed on a cabinet body of the vacuum cabinet through a second guide device, a second reset spring is arranged between the interlocking bolt and the second guide device, the interlocking bolt is contacted with the rim of the breaker cam, the grounding interlocking rod is installed on the cabinet body of the vacuum cabinet through a third guide device, and the bottom end of the grounding interlocking rod is contacted with the rim of the grounding cam. Its purpose is in order to provide a simple structure, easy and simple to handle's vacuum cabinet with forcing interlocking structure.
Description
Technical Field
The invention relates to electrical equipment, in particular to a positive interlocking structure for a vacuum cabinet.
Background
A forced interlocking structure is required to be arranged in the vacuum cabinet, so that misoperation of workers is prevented. The existing forced interlocking structure is complex and inconvenient to operate.
Disclosure of Invention
The invention aims to solve the technical problem of providing a forced interlocking structure for a vacuum cabinet, which has a simple structure and is simple and convenient to operate.
The invention discloses a forced interlocking structure for a vacuum cabinet, which comprises an isolation cam, an isolation interlocking rod, a breaker cam, an interlocking bolt, a grounding cam and a grounding interlocking rod, wherein the isolation cam is fixed on an isolation main shaft, the breaker cam is fixed on a breaker main shaft, the grounding cam is fixed on the grounding main shaft, the isolation cam, the breaker cam and the grounding cam are sequentially arranged from top to bottom, the isolation interlocking rod is installed on a cabinet body of the vacuum cabinet through a first guide device, a first reset spring is arranged between the isolation interlocking rod and the first guide device, the top end of the isolation interlocking rod is contacted with the rim of the isolation cam, the interlocking bolt is installed on the cabinet body of the vacuum cabinet through a second guide device, a second reset spring is arranged between the interlocking bolt and the second guide device, and the interlocking bolt is contacted with the rim of the breaker cam, the grounding interlocking rod is installed on the cabinet body of the vacuum cabinet through a third guide device, the bottom end of the grounding interlocking rod is in contact with the rim of the grounding cam, when the isolating switch is switched on, the isolating main shaft drives the isolating cam to rotate, the isolating cam pushes the isolating interlocking rod to move downwards and abut against the grounding interlocking rod in the disconnecting state of the grounding switch, when the grounding switch is switched on, the grounding main shaft drives the grounding cam to rotate, the grounding cam pushes the grounding interlocking rod to move upwards and abut against the isolating interlocking rod in the disconnecting state of the isolating switch, when the circuit breaker is switched on, the circuit breaker main shaft drives the circuit breaker cam to rotate, and the interlocking plug extends to the position between the isolating interlocking rod in the disconnecting state of the isolating switch and the interlocking rod in the disconnecting state of the grounding switch under the action of the second reset spring and is in contact with the interlocking.
The invention relates to a forced interlocking structure for a vacuum cabinet, wherein an interlocking bolt comprises an upper bolt and a lower bolt which are fixedly connected through a connecting plate, the connecting plate is contacted with a wheel rim of a cam of a circuit breaker, the upper bolt and the lower bolt are inserted into a second guiding device, second reset springs are arranged between the upper bolt and the second guiding device and between the lower bolt and the second guiding device, an upper semicircular groove is arranged on the end surface of the bottom end of an isolation interlocking rod, an upper circular hole is arranged on the isolation interlocking rod, the upper circular hole is positioned above the upper semicircular groove, a lower semicircular groove is arranged on the end surface of the top end of a grounding interlocking rod, a lower circular hole is arranged on the grounding interlocking rod, the lower circular hole is positioned below the lower semicircular groove, and the distance between the upper circular hole and the upper semicircular groove is equal to the distance between the upper bolt and the lower bolt, the distance between the lower round hole and the lower semicircular groove is equal to the distance between the upper bolt and the lower bolt, and the distance between the upper semicircular groove in the disconnecting switch disconnecting state and the lower semicircular groove in the grounding switch disconnecting state is equal to the distance between the upper bolt and the lower bolt.
The invention discloses a forced interlocking structure for a vacuum cabinet, wherein a first guide device comprises two guide plates which are arranged up and down, and a first return spring is arranged between the lower guide plate in the first guide device and an isolation interlocking rod.
The invention discloses a positive interlocking structure for a vacuum cabinet, wherein an isolation roller is rotatably arranged at the top end of an isolation interlocking rod and is in contact with a rim of an isolation cam.
The invention discloses a positive interlocking structure for a vacuum cabinet, wherein a second guide device is a guide plate arranged in the vertical direction, and an interlocking bolt is inserted in the guide plate.
The invention discloses a forced interlocking structure for a vacuum cabinet, wherein a third guide device comprises two guide plates which are arranged up and down, an anti-falling column is fixedly arranged on a grounding interlocking rod, and the anti-falling column is positioned between the two guide plates of the third guide device.
The invention discloses a positive interlocking structure for a vacuum cabinet, wherein the bottom end of a grounding interlocking rod is rotated to be provided with a grounding roller, and the grounding roller is contacted with a rim of a grounding cam.
The positive interlocking structure for the vacuum cabinet of the present invention is different from the prior art in that the present invention includes an isolation cam and an isolation interlocking lever at an upper position, a breaker cam and an interlocking plug at a middle position, and a grounding cam and a grounding interlocking lever at a lower position. In the initial state, the isolating switch, the grounding switch and the circuit breaker are all in an opening state, when the isolating switch is switched on, the isolating main shaft drives the isolating cam to rotate, the isolating cam pushes the isolating interlocking rod to move downwards until the isolating interlocking rod abuts against the grounding interlocking rod, and under the condition, the grounding main shaft cannot complete the rotation when the grounding switch is switched on (when the grounding main shaft drives the grounding cam to rotate and pushes the grounding interlocking rod to move upwards, the grounding switch is in a switching-on state, and the bottom end of the isolating interlocking rod abuts against the top end of the grounding interlocking rod, so the grounding main shaft cannot complete the rotation when the grounding switch is switched on). Similarly, when the grounding switch is switched on, the grounding main shaft drives the grounding cam to rotate, the grounding cam pushes the grounding interlocking rod to move upwards until the grounding interlocking rod abuts against the isolation interlocking rod, and under the condition, the isolation main shaft cannot complete the rotation of the isolation switch when the isolation main shaft is switched on (when the isolation main shaft drives the isolation cam to rotate and pushes the isolation interlocking rod to move downwards, the isolation main shaft is in the switching-on state of the isolation switch, and the top end of the grounding interlocking rod abuts against the bottom end of the isolation interlocking rod, so that the isolation main shaft cannot complete the rotation of the isolation switch when the isolation switch is switched on). When the circuit breaker is switched on, the circuit breaker main shaft drives the circuit breaker cam to rotate, the interlocking bolt extends to a position between the isolation interlocking rod in the disconnecting state of the isolation switch and the grounding interlocking rod in the disconnecting state of the grounding switch under the action of the second reset spring and is in contact with the isolation interlocking rod and the grounding interlocking rod, and at the moment, the isolation interlocking rod and the grounding interlocking rod cannot complete switching-on rotation. Therefore, the present invention can achieve the following effects: the isolating switch and the grounding switch only have one switch at a switching-on position or both at a switching-off position; after the breaker is switched on, the isolating switch and the grounding switch can not act, and the operation of the isolating switch and the grounding switch is not hindered after the breaker is switched off. Therefore, the invention has simple structure and simple and convenient operation.
The invention will be further explained with reference to the drawings.
Drawings
FIG. 1 is a schematic structural view of a positive interlocking structure for a vacuum cabinet according to the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a state diagram of the present invention when the disconnector, grounding switch and circuit breaker are all open;
FIG. 4 is a state diagram of the present invention during the closing of the disconnecting switch, the opening of the grounding switch and the opening of the circuit breaker;
FIG. 5 is a state diagram of the present invention during the closing of the grounding switch, the opening of the isolating switch and the opening of the circuit breaker;
FIG. 6 is a state diagram of the present invention during the closing of the circuit breaker, the opening of the disconnecting switch and the opening of the grounding switch;
FIG. 7 is a state diagram of the present invention during the closing of the disconnecting switch, the closing of the circuit breaker, and the opening of the grounding switch;
figure 8 is a diagram of the relative positions of the interlock plug and the isolation and grounding interlock rods of the present invention.
Detailed Description
As shown in fig. 1 and fig. 2, the positive interlocking structure for a vacuum cabinet of the present invention includes an isolation cam 1, an isolation interlocking lever 4, a breaker cam 7, an interlocking latch, a grounding cam 15 and a grounding interlocking lever 13, wherein the isolation cam 1 is fixed on an isolation spindle 2, the breaker cam 7 is fixed on a breaker spindle 17, the grounding cam 15 is fixed on a grounding spindle 16, the isolation cam 1, the breaker cam 7 and the grounding cam 15 are sequentially arranged from top to bottom, the isolation interlocking lever 4 is mounted on a cabinet body of the vacuum cabinet through a first guide device 6, a first return spring 5 is disposed between the isolation interlocking lever 4 and the first guide device 6, a top end of the isolation interlocking lever 4 contacts with a rim of the isolation cam 1, the interlocking latch is mounted on the cabinet body of the vacuum cabinet through a second guide device 9, a second return spring 10 is disposed between the interlocking latch and the second guide device 9, the interlocking plug is contacted with the rim of the breaker cam 7, the grounding interlocking rod 13 is arranged on the cabinet body of the vacuum cabinet through a third guiding device 12, the bottom end of the grounding interlocking rod 13 is contacted with the rim of the grounding cam 15, when the isolating switch is switched on, the isolating main shaft 2 drives the isolating cam 1 to rotate, the isolating cam 1 pushes the isolating interlocking rod 4 to move downwards and abut against the grounding interlocking rod 13 in the switching-off state of the grounding switch, when the grounding switch is switched on, the grounding main shaft 16 drives the grounding cam 15 to rotate, the grounding cam 15 pushes the grounding interlocking rod 13 to move upwards and abut against the isolation interlocking rod 4 in the switching-off state of the isolation switch, when the circuit breaker is switched on, the circuit breaker main shaft 17 drives the circuit breaker cam 7 to rotate, and the interlocking bolt extends to and is contacted with the isolation interlocking rod 4 in the disconnecting state of the isolation switch and the grounding interlocking rod 13 in the disconnecting state of the grounding switch under the action of the second return spring 10.
The invention discloses a forced interlocking structure for a vacuum cabinet, wherein an interlocking bolt comprises an upper bolt 18 and a lower bolt 11 which are fixedly connected through a connecting plate 8, the connecting plate 8 is contacted with the rim of a breaker cam 7, the upper bolt 18 and the lower bolt 11 are inserted into a second guiding device 9, second reset springs 10 are arranged between the upper bolt 18 and the second guiding device 9 and between the lower bolt 11 and the second guiding device 9, an upper semicircular groove is arranged on the bottom end surface of an isolation interlocking rod 4, an upper circular hole is arranged on the isolation interlocking rod 4, the upper circular hole is positioned above the upper semicircular groove, a lower semicircular groove is arranged on the top end surface of a grounding interlocking rod 13, a lower circular hole is arranged on the grounding rod 13, the lower circular hole is positioned below the lower semicircular groove, and the distance between the upper circular hole and the upper semicircular groove is equal to the distance between the upper bolt 18 and the lower bolt 11, the distance between the lower round hole and the lower semicircular groove is equal to the distance between the upper bolt 18 and the lower bolt 11, and the distance between the upper semicircular groove in the disconnecting switch disconnecting state and the lower semicircular groove in the grounding switch disconnecting state is equal to the distance between the upper bolt 18 and the lower bolt 11.
The invention discloses a positive interlocking structure for a vacuum cabinet, wherein a first guide device 6 comprises two guide plates which are arranged up and down, and a first return spring 5 is arranged between the lower guide plate in the first guide device 6 and an isolation interlocking rod 4.
The invention discloses a positive interlocking structure for a vacuum cabinet, wherein an isolation roller 3 is rotatably arranged at the top end of an isolation interlocking rod 4, and the isolation roller 3 is in contact with the rim of an isolation cam 1.
The invention discloses a positive interlocking structure for a vacuum cabinet, wherein a second guide device 9 is a guide plate arranged in the vertical direction, and an interlocking bolt is inserted in the guide plate.
The invention discloses a forced interlocking structure for a vacuum cabinet, wherein a third guide device 12 comprises two guide plates which are arranged up and down, and an anti-falling column is fixedly arranged on a grounding interlocking rod 13 to prevent the grounding interlocking rod 13 from falling out of the third guide device. The anti-dropping column is located between the two guide plates of the third guide device 12.
The present invention is a positive interlock structure for a vacuum cabinet, in which the bottom end of the grounding interlock lever 13 is rotated to be installed with a grounding roller 14, and the grounding roller 14 is in contact with the rim of the grounding cam 15.
The present invention includes the isolation cam 1 and the isolation interlock lever 4 in the upper position, the breaker cam 7 and the interlock latch in the middle position, and the grounding cam 15 and the grounding interlock lever 13 in the lower position. In the initial state, the isolating switch, the grounding switch and the circuit breaker are all in an opening state, when the isolating switch is switched on, the isolating main shaft 2 drives the isolating cam 1 to rotate, the isolating cam 1 pushes the isolating interlocking rod 4 to move downwards until the isolating interlocking rod abuts against the grounding interlocking rod 13, and under the condition, the grounding main shaft 16 cannot complete the rotation when the grounding switch is switched on (when the grounding main shaft 16 drives the grounding cam 15 to rotate and pushes the grounding interlocking rod 13 to move upwards, the grounding switch is in a switching-on state, and the bottom end of the isolating interlocking rod 4 abuts against the top end of the grounding interlocking rod 13, so the grounding main shaft 16 cannot complete the rotation when the grounding switch is switched on). Similarly, when the grounding switch is switched on, the grounding main shaft 16 drives the grounding cam 15 to rotate, the grounding cam 15 pushes the grounding interlocking rod 13 to move upwards until the grounding interlocking rod abuts against the isolation interlocking rod 4, and in this case, the isolation main shaft 2 cannot complete the rotation when the isolation switch is switched on (when the isolation main shaft 2 drives the isolation cam 1 to rotate and pushes the isolation interlocking rod 4 to move downwards, the isolation main shaft is in a switch-on state, and because the top end of the grounding interlocking rod 13 abuts against the bottom end of the isolation interlocking rod 4, the isolation main shaft 2 cannot complete the rotation when the isolation switch is switched on). When the circuit breaker is switched on, the circuit breaker main shaft 17 drives the circuit breaker cam 7 to rotate, the interlocking bolt extends between the isolation interlocking rod 4 in the isolation switch opening state and the grounding interlocking rod 13 in the grounding switch opening state under the action of the second reset spring 10 and is in contact with the isolation interlocking rod 4 and the grounding interlocking rod 13, and at the moment, the isolation interlocking rod 4 and the grounding interlocking rod 13 cannot complete switching-on rotation. Therefore, the present invention can achieve the following effects: the isolating switch and the grounding switch only have one switch at a switching-on position or both at a switching-off position; after the breaker is switched on, the isolating switch and the grounding switch can not act, and the operation of the isolating switch and the grounding switch is not hindered after the breaker is switched off. Therefore, the invention has simple structure and simple and convenient operation.
The interlocking principle of the invention is as follows:
the interlocking between the disconnecting switch and the grounding switch is shown in figure 3 in the initial condition, and the disconnecting switch and the grounding switch are both opened.
(1) When the isolating switch is operated to switch on, the isolating main shaft 2 can be driven to rotate anticlockwise, the isolating cam 1 is driven to rotate anticlockwise, the isolating roller 3 can be pressed downwards while the isolating cam 1 rotates, and then the isolating interlocking rod 4 can move downwards, as shown in fig. 4.
(2) Similarly, when the grounding switch is switched on, the grounding main shaft 16 is driven to rotate counterclockwise, the grounding cam 15 rotates counterclockwise, and the grounding interlocking rod 13 is lifted upward, as shown in fig. 5.
As long as one of the disconnecting switch and the grounding switch is switched on, the other one of the disconnecting switch and the grounding switch cannot be switched on, because as long as one of the disconnecting switch and the grounding switch is switched on, the isolating interlocking rod 4 and the grounding interlocking rod 13 are close to each other and are pushed together. When another closing operation is performed at this time, the closing operation cannot be performed due to the butting of the interlocking rod, as shown in fig. 4 and 5.
In the design, the stroke of the isolation interlocking rod 4 is the same as that of the grounding interlocking rod 13, so that the situation that the interlocking rod is propped against a certain switch without being switched on in place is avoided.
As shown in fig. 3, the circuit breaker is in the open state, in which the circuit breaker cam 7 abuts against the interlock latch, the second return spring 10 is in the compressed state, and the interlock latch is separated from the isolation interlock rod 4 and the grounding interlock rod 13, so that the movement of the isolation interlock rod 4 and the grounding interlock rod 13 is not affected.
The two interlocking bolts can translate left and right under the action of a second return spring 10 and a breaker cam 7, and the second guide device 9 limits the up-and-down movement of the interlocking bolts, so that the interlocking bolts can only move left and right.
The distance between the upper and lower pins 18 and 11 is the same as the stroke of the isolation interlocking lever 4 and the grounding interlocking lever 13, and the distance between the circular hole and the semicircular hole of the isolation interlocking lever 4 and the grounding interlocking lever 13. That is, regardless of the state of the disconnecting switch and the grounding switch, both pins are coaxial with the circular holes or semicircular grooves on the isolating interlock rod 4 or the grounding interlock rod 13.
As shown in fig. 8, the interlock plug is removed separately from the isolation interlock lever 4 and the grounding interlock lever 13 for comparison.
As shown in fig. 6, when the circuit breaker is switched on, the circuit breaker spindle 17 rotates counterclockwise to drive the circuit breaker cam 7 to rotate counterclockwise, the circuit breaker cam 7 does not press the interlock pin any more, and the interlock pin moves rightward under the action of the second return spring 10 and is inserted into the two semicircular holes of the isolation interlock rod 4 and the grounding interlock rod 13, as shown in state i in fig. 8. As shown in fig. 5, when the earthing switch is closed, the interlocking plug, the isolation interlocking lever 4 and the earthing interlocking lever 13 are in the positional relationship shown in state ii in fig. 8. As shown in fig. 7, when the disconnecting switch is closed, the circuit breaker is closed again, and the interlock pin is inserted into the circular hole formed by the two semicircular holes of the isolating interlock rod 4 and the grounding interlock rod 13 and the upper circular hole of the isolating interlock rod 4, as shown in state iii in fig. 8.
The invention relates to a forced interlocking structure which is suitable for a high-voltage switch and has the following functions:
1. the isolating switch and the grounding switch only have one switch in a switching-on position or both in a switching-off position.
2. After the breaker is switched on, the isolating switch and the grounding switch can not act. The circuit breaker does not hinder the operation of the disconnecting switch and the grounding switch after opening.
The invention is a standby forced interlock, which prevents the accident of the operator caused by the misoperation when the first set of interlock is out of action, and improves the safety. Simple interlocking, complete functions, small volume and low cost. The forced interlocking is more reliable, and the switching operation is safer.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (7)
1. The utility model provides a vacuum cabinet is with forcing interlocking structure which characterized in that: the vacuum isolation interlocking device comprises an isolation cam, an isolation interlocking rod, a circuit breaker cam, an interlocking bolt, a grounding cam and a grounding interlocking rod, wherein the isolation cam is fixed on an isolation main shaft, the circuit breaker cam is fixed on a circuit breaker main shaft, the isolation cam, the circuit breaker cam and the grounding cam are sequentially arranged from top to bottom, the isolation interlocking rod is installed on a cabinet body of a vacuum cabinet through a first guide device, a first reset spring is arranged between the isolation interlocking rod and the first guide device, the top end of the isolation interlocking rod is in contact with a rim of the isolation cam, the interlocking bolt is installed on the cabinet body of the vacuum cabinet through a second guide device, a second reset spring is arranged between the interlocking bolt and the second guide device, the interlocking bolt is in contact with the rim of the circuit breaker cam, and the grounding interlocking rod is installed on the cabinet body of the vacuum cabinet through a third guide device, the bottom end of the grounding interlocking rod is in contact with the rim of the grounding cam, when an isolating switch is switched on, the isolating main shaft drives the isolating cam to rotate, the isolating cam pushes the isolating interlocking rod to move downwards and abut against the grounding interlocking rod in the disconnecting state of the grounding switch, when the grounding switch is switched on, the grounding main shaft drives the grounding cam to rotate, the grounding cam pushes the grounding interlocking rod to move upwards and abut against the isolating interlocking rod in the disconnecting state of the isolating switch, when the circuit breaker is switched on, the circuit breaker main shaft drives the circuit breaker cam to rotate, and the interlocking bolt extends between the isolating interlocking rod in the disconnecting state of the isolating switch and the grounding interlocking rod in the disconnecting state of the grounding switch under the action of the second reset spring and is in contact with the isolating interlocking rod and the grounding interlocking.
2. A positive-locking structure for a vacuum cabinet according to claim 1, wherein: the interlocking bolt comprises an upper bolt and a lower bolt which are fixedly connected through a connecting plate, the connecting plate is contacted with the rim of the breaker cam, the upper bolt and the lower bolt are inserted into the second guiding device, the second reset spring is arranged between the upper bolt and the second guiding device and between the lower bolt and the second guiding device, the bottom end surface of the isolation interlocking rod is provided with an upper semicircular groove, the isolation interlocking rod is provided with an upper circular hole, the upper circular hole is positioned above the upper semicircular groove, the top end surface of the grounding interlocking rod is provided with a lower semicircular groove, the grounding interlocking rod is provided with a lower circular hole, the lower circular hole is positioned below the lower semicircular groove, the distance between the upper circular hole and the upper semicircular groove is equal to the distance between the upper bolt and the lower bolt, and the distance between the lower circular hole and the lower semicircular groove is equal to the distance between the upper bolt and the lower bolt, the distance between the upper semicircular groove in the opening state of the isolating switch and the lower semicircular groove in the opening state of the grounding switch is equal to the distance between the upper bolt and the lower bolt.
3. A positive-locking structure for a vacuum cabinet according to claim 2, wherein: the first guide device comprises two guide plates which are arranged up and down, and the first return spring is arranged between the lower guide plate in the first guide device and the isolation interlocking rod.
4. A positive-locking structure for a vacuum cabinet according to claim 3, wherein: and the top end of the isolation interlocking rod is rotatably provided with an isolation roller, and the isolation roller is contacted with the wheel rim of the isolation cam.
5. A positive-locking structure for a vacuum cabinet according to claim 4, wherein: the second guiding device is a guiding plate arranged in the vertical direction, and the interlocking bolt is inserted in the guiding plate.
6. A positive-locking structure for a vacuum cabinet according to claim 5, wherein: the third guiding device comprises two guiding plates which are arranged up and down, an anti-falling column is fixedly arranged on the grounding interlocking rod and is positioned between the two guiding plates of the third guiding device.
7. A positive-locking structure for a vacuum cabinet according to claim 6, wherein: the bottom end of the grounding interlocking rod is rotated to be provided with a grounding roller, and the grounding roller is contacted with the flange of the grounding cam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811532113.0A CN109859972B (en) | 2018-12-14 | 2018-12-14 | Forced interlocking structure for vacuum cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811532113.0A CN109859972B (en) | 2018-12-14 | 2018-12-14 | Forced interlocking structure for vacuum cabinet |
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| CN109859972A CN109859972A (en) | 2019-06-07 |
| CN109859972B true CN109859972B (en) | 2020-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811532113.0A Active CN109859972B (en) | 2018-12-14 | 2018-12-14 | Forced interlocking structure for vacuum cabinet |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110911191B (en) * | 2019-11-29 | 2021-09-03 | 北京双杰电气股份有限公司 | Rear forced interlocking mechanism of vacuum cabinet |
| CN111048335A (en) * | 2019-12-13 | 2020-04-21 | 上海平高天灵开关有限公司 | Forced interlocking device |
| CN113284748B (en) * | 2021-04-27 | 2024-02-13 | 泉州七星电气有限公司 | Forced interlocking structure for vacuum cabinet |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5043687A (en) * | 1990-09-17 | 1991-08-27 | Westinghouse Electric Corp. | Adjustable walking beam interlock mechanism |
| GB9514150D0 (en) * | 1994-07-19 | 1995-09-13 | Eaton Corp | Interlock for electrical switches having plungers engaging operating mechanism |
| CN201278325Y (en) * | 2008-10-15 | 2009-07-22 | 湖南长高高压开关集团股份公司 | Mechanical interlocking apparatus for high-voltage isolation switch |
| CN202423063U (en) * | 2012-01-10 | 2012-09-05 | 昆明东控电器成套设备有限公司 | Isolating switch and lower door interlocking device |
| CN205303238U (en) * | 2015-12-03 | 2016-06-08 | 平高集团有限公司 | Circuit breaker and isolator's interlock |
| CN205881802U (en) * | 2016-07-18 | 2017-01-11 | 江苏明及电气股份有限公司 | Keep apart sword interlocking operating device |
-
2018
- 2018-12-14 CN CN201811532113.0A patent/CN109859972B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5043687A (en) * | 1990-09-17 | 1991-08-27 | Westinghouse Electric Corp. | Adjustable walking beam interlock mechanism |
| GB9514150D0 (en) * | 1994-07-19 | 1995-09-13 | Eaton Corp | Interlock for electrical switches having plungers engaging operating mechanism |
| CN201278325Y (en) * | 2008-10-15 | 2009-07-22 | 湖南长高高压开关集团股份公司 | Mechanical interlocking apparatus for high-voltage isolation switch |
| CN202423063U (en) * | 2012-01-10 | 2012-09-05 | 昆明东控电器成套设备有限公司 | Isolating switch and lower door interlocking device |
| CN205303238U (en) * | 2015-12-03 | 2016-06-08 | 平高集团有限公司 | Circuit breaker and isolator's interlock |
| CN205881802U (en) * | 2016-07-18 | 2017-01-11 | 江苏明及电气股份有限公司 | Keep apart sword interlocking operating device |
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| CN109859972A (en) | 2019-06-07 |
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