CN203351457U - Interlocking mechanism among isolating switch, vacuum circuit breaker and cabinet door - Google Patents
Interlocking mechanism among isolating switch, vacuum circuit breaker and cabinet door Download PDFInfo
- Publication number
- CN203351457U CN203351457U CN 201320405183 CN201320405183U CN203351457U CN 203351457 U CN203351457 U CN 203351457U CN 201320405183 CN201320405183 CN 201320405183 CN 201320405183 U CN201320405183 U CN 201320405183U CN 203351457 U CN203351457 U CN 203351457U
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- China
- Prior art keywords
- push rod
- cam
- axle sleeve
- cabinet door
- vacuum circuit
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses an interlocking mechanism among an isolating switch, a vacuum circuit breaker and a cabinet door. The interlocking mechanism includes a shaft sleeve, a rear end of the shaft sleeve is connected with an operating shaft of the isolated switch, the outer peripheral face of the shaft sleeve is fixed with a first cam, a second cam and a third cam, a support is arranged under the shaft sleeve, and the support is provided with a first push rod, a second push rod, a third push rod and a pull rod. A rotating shaft is arranged at the back of the support. An operating mechanism of the vacuum circuit breaker is provided with a switching-on shaft and a releasing shaft. The pull rod is connected with the switching-on shaft through the rotating shaft and a first connection rod. The second push rod is connected with the releasing shaft through a second connection rod. A lower end of the first push rod is cooperated with the cabinet door. The center of the third push rod is fixed with an indicating rod used for indicating the switching on and switching off state of the isolating switch. An upper end of the pull rod is fixed with an upper cover plate. An upper part of the first push rod is fixed with a lower cover plate, and the upper cover plate and the lower cover plate are positioned at the front of the shaft sleeve. The interlocking mechanism is compact in structure, complete in interlocking function, high in security, and simple and convenient to operate.
Description
Technical field
The utility model relates to switch cubicle manufacturing technology field, the mutual interlocking gear of especially a kind of isolating switch, vacuum circuit-breaker and cabinet door.
Background technology
Switch cubicle is controller switching equipment commonly used in electric power system, switch cubicle will comprise cabinet usually, circuit breaker, the mechanisms such as isolating switch, in the use of switch cubicle, for preventing, divide by mistake, close circuit breaker, prevent on-load deciliter isolating switch, prevent the potential safety hazards such as mistakenly entering charged chamber, mechanical interlock mechanism or electrical interlocking mechanism must be set in switch cubicle, in existing switch cubicle is manufactured, in order to realize circuit breaker, isolating switch, interlock function between each action between the cabinet door, many cover interlocking gears need to be set usually, its structure is comparatively complicated, operate more loaded down with trivial details, adopt in addition many cover interlocking gears difficulty that cooperatively interacts large, Reliability of Microprocessor is lower, also can have some potential safety hazards.
The utility model content
The technical problems to be solved in the utility model is to provide the mutual interlocking gear of a kind of isolating switch, vacuum circuit-breaker and cabinet door, its compact conformation, and interlock function is perfect, safe, and simple, convenient.
For achieving the above object, the technical solution of the utility model is: a kind of isolating switch, the mutual interlocking gear of vacuum circuit-breaker and cabinet door, comprise axle sleeve, the rear end of axle sleeve is connected with the isolator operation axle, the outer peripheral face of axle sleeve is fixed with the first cam and the second cam, the first cam and the second cam are along circumferentially being interspersed, one support is set below axle sleeve, the first push rod is housed on support, the second push rod and a pull bar, the first push rod, the second push rod and pull bar are parallel to each other and are perpendicular with the axis of axle sleeve, match with the first cam and the second cam respectively in the top of the first push rod and the second push rod,
The back of support arranges a rotating shaft, rotating shaft one end is fixed the first connecting lever, the other end is fixed the second connecting lever, the lower end of the first connecting lever swinging end and pull bar is connected, the operating mechanism of vacuum circuit-breaker is provided with the combined floodgate axle, one end of combined floodgate axle is fixed with the 3rd connecting lever, the swinging end of the 3rd connecting lever is connected by first connecting rod with the second connecting lever swinging end, and when vacuum circuit-breaker closes a floodgate, the 3rd connecting lever pulls first connecting rod to move down;
Also be provided with trip shaft on the operating mechanism of vacuum circuit-breaker, one end of trip shaft is fixed with the 4th connecting lever, the swinging end of the 4th connecting lever is connected by second connecting rod with the lower end of the second push rod, move down when the second push rod top contacts with the second cam, then make trip shaft turn to trip status by second connecting rod and the 4th connecting lever;
A upper cover plate is fixed in the upper end of pull bar, the front of upper cover plate in axle sleeve;
A lower cover is fixed on the top of the first push rod, and lower cover is the front in axle sleeve also;
Being fixed with a lock dog on the cabinet door matches with the lower end of the first push rod, while closing the Over-The-Counter door, lock dog matches and pulls the first push rod to move down with the lower end of the first push rod, and when the first cam withstands the first push rod top, it is dead that cabinet door knob cabinet door lock is further inserted in the lower end of the first push rod;
The first stage clip is housed between the first push rod and support, the second stage clip is housed between the second push rod and support, the 3rd stage clip is housed between the first pull bar and support.
Further improve, also be fixed with the 3rd cam on the axle sleeve outer peripheral face between the first cam and the second cam, the 3rd cam and the first cam circumferentially are being set up in parallel, the 3rd push rod also is installed on support, match with the 3rd cam in the upper end of the 3rd push rod, the 4th stage clip is housed between the 3rd push rod and support, and an indicating arm is fixed at the middle part of the 3rd push rod, and the front end of indicating arm stretches out outside support and " combined floodgate " and " separating brake " direction board is housed.Isolating switch obtains " combined floodgate " and " separating brake " just can conveniently indicate like this, convenient management and operation.
Further improve, the middle part of described the first push rod is provided with a strip radial hole again, and the middle part of described indicating arm is through the strip radial hole at the first push rod middle part.Can prevent that the first push rod and the 3rd push rod from, along circumferentially rotating, further improving the reliability of action.
Further improve, the swinging end of the first connecting lever is provided with the first strip through hole, and the lower end of pull bar is connected on described the first strip through hole by a bearing pin.Facilitate connection and the position adjustment of the first connecting lever and pull bar.
Further improve, the swinging end of the second connecting lever is provided with the second strip through hole, and first connecting rod is connected on described the second strip through hole by a bearing pin.Facilitate connection and the position adjustment of the second connecting lever and first connecting rod
Further improve, vacuum circuit-breaker is provided with motor-operating mechanism, described axle sleeve side is provided with the one stroke switch, travel switch is controlled the power supply of described motor-operating mechanism, fix a contact on described axle sleeve outer peripheral face and match with travel switch, the power supply energising that described contact contacts with travel switch and makes described motor-operating mechanism when axle sleeve makes the isolator operation axle turn to closing position.During in gate-dividing state, also can lock the motor-operating mechanism of vacuum circuit-breaker when isolating switch, prevent that mistake from closing vacuum circuit-breaker, further improve fail safe.
The utlity model has following interlock function:
When 1, vacuum circuit-breaker closes a floodgate, isolating switch is locked can't operate; It pulls first connecting rod to move down by the 3rd connecting lever, first connecting rod pulls pull bar to move down by the second connecting lever, rotating shaft, the first connecting lever, and the upper cover plate that is fixed on the pull bar upper end just moves down the axle sleeve front end is covered, and axle sleeve can't operate, at this moment isolating switch is locked, prevents mistake minute isolating switch;
2, isolating switch closes a floodgate, and the cabinet door is locked can't be opened; When isolating switch closes a floodgate, axle sleeve clockwise rotates, and the first cam withstands the top of the first push rod, and the first push rod moves down, and the lower end of the first push rod further inserts that cabinet door knob cabinet door lock is dead, and now the cabinet door is locked, can't open;
3,, when the cabinet door is opened, isolating switch is locked can't be operated; When the isolating switch separating brake, axle sleeve rotates counterclockwise, the top of first cam disengages the first push rod, if now the cabinet door is opened, lock dog on the cabinet door just breaks away from the lower end of the first push rod, and the first push rod moves under the effect of the first stage clip, and the first push rod covers the front end of axle sleeve with regard to driving lower cover, the operating axis of isolating switch just can't operate, and isolating switch is locked;
4,, during the isolating switch separating brake, vacuum circuit-breaker is locked can't close a floodgate; When the isolating switch separating brake, axle sleeve rotates counterclockwise, the second cam withstands the upper end of the second push rod, the second push rod moves down, the lower end of the second push rod just drives second connecting rod and moves down, second connecting rod drives trip shaft to turn to trip status by the 4th connecting lever, and now the operating mechanism of vacuum circuit-breaker can't close a floodgate; Further, the contact on axle sleeve breaks away from travel switch, and the motor-operating mechanism outage on vacuum circuit-breaker also can't be closed a floodgate, and to prevent mistake, closes vacuum circuit-breaker.
Therefore the utility model just can be realized multinomial interlock function by a mutual interlocking gear, its compact conformation, and interlock function is perfect, safe; Just can realize interlock function by parts of operation axle sleeve, it is simple, convenient.
The accompanying drawing explanation
Fig. 1 is the utility model front view;
Fig. 2 is the right view of Fig. 1
Fig. 3 is the A place enlarged drawing of Fig. 1;
Fig. 4 is the utility model top perspective view;
Fig. 5 is the B place enlarged drawing of Fig. 4;
Fig. 6 is the utility model face upwarding stereogram;
Fig. 7 is the C place enlarged drawing of Fig. 6;
Fig. 8 is the utility model lock dog and the cabinet door stereogram that interfixes;
Fig. 9 is that the utility model the first push rod is connected stereo amplification figure with lower cover.
Embodiment
Below in conjunction with accompanying drawing and concrete execution mode, the utility model is described in further detail.
Shown in Fig. 1 to Fig. 9, a kind of isolating switch, the mutual interlocking gear of vacuum circuit-breaker and cabinet door, comprise axle sleeve 1, the rear end of axle sleeve 1 is connected with the isolator operation axle, the outer peripheral face of axle sleeve 1 is fixed with the first cam 11 and the second cam 12, the first cam 11 and the second cam 12 are along circumferentially being interspersed, one support 2 is set below axle sleeve 1, the first push rod 3 is housed on support 2, the second push rod 4 and a pull bar 5, the first push rod 3, the second push rod 4 and pull bar 5 are parallel to each other and are perpendicular with the axis of axle sleeve 1, match with the first cam 11 and the second cam 12 respectively in the top of the first push rod 3 and the second push rod 4,
The back of support 2 arranges a rotating shaft 6, rotating shaft 6 one ends are fixed the first connecting lever 61, the other end is fixed the second connecting lever 62, the first connecting lever 61 swinging ends are connected with the lower end of pull bar 5, the operating mechanism 7 of vacuum circuit-breaker is provided with combined floodgate axle 71, one end of combined floodgate axle 71 is fixed with the 3rd connecting lever 72, the swinging end of the 3rd connecting lever 72 is connected by first connecting rod 8 with the second connecting lever 62 swinging ends, and when vacuum circuit-breaker closes a floodgate, the 3rd connecting lever 72 pulls first connecting rod 8 to move down;
Also be provided with trip shaft 73 on the operating mechanism 7 of vacuum circuit-breaker, one end of trip shaft 73 is fixed with the 4th connecting lever 74, the lower end of the swinging end of the 4th connecting lever 74 and the second push rod 4 is connected by second connecting rod 9, move down when the second push rod 4 tops contact with the second cam 12, then make trip shaft 73 turn to trip status by second connecting rod 9 and the 4th connecting lever 74;
A upper cover plate 51 is fixed in the upper end of pull bar 5, the front of upper cover plate 51 in axle sleeve 1;
A lower cover 31 is fixed on the top of the first push rod 3, and lower cover 31 is the front in axle sleeve 1 also;
Being fixed with a lock dog 10 on cabinet door 40 matches with the lower end of the first push rod 3, while closing Over-The-Counter door 40, lock dog 10 matches with the lower end of the first push rod 3 and pulls the first push rod 3 to move down, when the first cam 11 withstands the first push rod 3 top, it is locked cabinet door 40 that cabinet door 40 is further inserted in the lower end of the first push rod 3;
Be equipped with between the first push rod 3 and support 2 between the first stage clip 32, the second push rods 4 and support 2 the second stage clip 41 is housed, the 3rd stage clip 52 is housed between pull bar 5 and support 2.
The outer peripheral face of the axle sleeve 1 between the first cam 11 and the second cam 12 also is fixed with the 3rd cam 13, the 3rd cam 13 and the first cam 11 circumferentially are being set up in parallel, the 3rd push rod 20 also is installed on support, match with the 3rd cam 13 in the upper end of the 3rd push rod 20, the 4th stage clip 201 is housed between the 3rd push rod 20 and support 2, an indicating arm 202 is fixed at the middle part of the 3rd push rod 20, and the front end of indicating arm 202 stretches out outside support 2 and " combined floodgate " direction board 203 and " separating brake " direction board 204 are housed.
Be provided with a strip radial hole 33 at the middle part of the first push rod 3, the middle part of described indicating arm 202 is through the strip radial hole 33 at the first push rod 3 middle parts.
The swinging end of the first connecting lever 61 is provided with the first strip through hole 611, and the lower end of pull bar 5 is connected on described the first strip through hole 611 by a bearing pin.
The swinging end of the second connecting lever 62 is provided with the second strip through hole 621, and first connecting rod 8 is connected on described the second strip through hole 621 by a bearing pin.
Vacuum circuit-breaker is provided with motor-operating mechanism, described axle sleeve 1 side is provided with one stroke switch 30, travel switch 30 is controlled the power supply of described motor-operating mechanism, fix a contact 14 on described axle sleeve 1 outer peripheral face and match with travel switch 30, the power supply energising that described contact 14 contacts with travel switch 30 and makes described motor-operating mechanism when axle sleeve 1 makes the isolator operation axle turn to closing position.
Shown in Fig. 8, Fig. 9 are further, lock dog 10 is fixed on the upper surface of cabinet door 40, lock dog 10 is provided with a draw-in groove 101, when coordinating with the lower end of the first push rod 3, described draw-in groove 101 can pull the first push rod 3 to move down, lower cover 31 also and then moves down, when the first push rod 3 just can further insert cabinet door 40 40 lockings of cabinet door under the first cam 11 drives.
Workflow of the present utility model is: during power transmission, first close the cabinet door, then utilize operating grip to insert axle sleeve 1 and turn clockwise and close isolating switch by axle sleeve 1 drive isolator operation axle, then just can close the vacuum circuit-breaker power transmission; During outage, first divide vacuum circuit-breaker, and then utilize operating grip to be rotated counterclockwise a minute isolating switch by axle sleeve 1 drive isolator operation axle, now the cabinet door just can be opened.
Main interlock function of the present utility model is:
1, when the vacuum breaker closing, the 3rd connecting lever 72 pulls first connecting rod 8 to move down, first connecting rod 8 rotates counterclockwise rotating shaft 6 by the second connecting lever 62, rotating shaft 6 drives pull bar 5 by the first connecting lever 61 and moves down, the upper cover plate 51 that is fixed on pull bar 5 upper ends moves down an axle sleeve 1 front end and covers, axle sleeve 1 can't operate, and at this moment isolating switch is locked, prevents mistake minute isolating switch; Only have when the vacuum breaker open operation, the 3rd connecting lever 72 promotes first connecting rods 8 and resets, and pull bar 5 moves under the 3rd stage clip 52 effects, and pull bar 5 drives on upper cover plates 51 and moves the front end that breaks away from axle sleeve 1, and now the operating axis of isolating switch could operate;
2, when isolating switch closes a floodgate, axle sleeve 1 clockwise rotates, the top that the first cam 11 and the 3rd cam 13 withstand respectively the first push rod 3 and the 3rd push rod 20, the first push rod 3 and the 3rd push rod 20 move down, the lower end of the first push rod 3 further inserts that cabinet door knob cabinet door lock is dead, and now the cabinet door is locked, can't open, the 3rd push rod 20 drive indicating arms 202 move down simultaneously, and indicating arm 202 front end direction boards are designated as " closing " state;
3, when the isolating switch separating brake, axle sleeve 1 rotates counterclockwise, the first cam 11 and the 3rd cam 13 break away from respectively the top of the first push rod 3 and the 3rd push rod 20, the 3rd push rod 20 moves up under the 4th stage clip 201 effects, the 3rd push rod 20 drives on indicating arm 202 and moves, and indicating arm 202 front end direction boards are designated as " dividing " state; If now the cabinet door is not opened, lock dog 10 blocks the lower end of the first push rod 3, obtains the front end that lower cover 31 does not cover axle sleeve 1 on the first push rod 3, and the operating axis of isolating switch also can operate;
4, when isolating switch in gate-dividing state when simultaneously the cabinet door is opened, lock dog 10 on the cabinet door just breaks away from the lower end of the first push rod 3, the first push rod 3 moves under the effect of the first stage clip 32, the first push rod 3 covers the front end of axle sleeve 1 with regard to driving lower cover 31, the operating axis of isolating switch just can't operate, isolating switch is locked, improves to greatest extent fail safe;
5, when the isolating switch separating brake, axle sleeve 1 rotates counterclockwise, cause the first cam 11 and the second cam 12 are along circumferentially being interspersed, the upper end that the second cam 12 just withstands the second push rod 4, the second push rod 4 moves down, the lower end of the second push rod 4 just drives second connecting rod 9 and moves down, and second connecting rod 9 clockwise rotates and makes trip shaft 73 in trip status by the 4th connecting lever 74 driving trip shaft 73, and now the operating mechanism of vacuum circuit-breaker can't close a floodgate; Contact on axle sleeve 1 14 breaks away from travel switch 30 simultaneously, and the motor-operating mechanism outage on vacuum circuit-breaker also can't be closed a floodgate, and to prevent mistake, closes vacuum circuit-breaker;
6, when isolating switch closes a floodgate, axle sleeve 1 clockwise rotates, the second cam 12 breaks away from the upper end of the second push rod 4, the second push rod 4 moves up, the lower end of the second push rod 4 just drives on second connecting rod 9 and moves, second connecting rod 9 rotates counterclockwise trip shaft 73 by the 4th connecting lever 74 to reset, and trip shaft 73 is removed trip status, and now the operating mechanism of vacuum circuit-breaker can close a floodgate; Contact 14 contacting travel switches 30 on axle sleeve 1 simultaneously, the motor-operating mechanism energising on vacuum circuit-breaker also can operate combined floodgate, therefore only has when isolating switch in "on" position, and vacuum circuit-breaker could close a floodgate, assurance power transmission reasonability.
Be only below preferred embodiment of the utility model, the change that those skilled in the art does to be equal to by claim all falls into the protection range of this case.
Claims (6)
1. the mutual interlocking gear of an isolating switch, vacuum circuit-breaker and cabinet door, it is characterized in that: comprise axle sleeve, the rear end of axle sleeve is connected with the isolator operation axle, the outer peripheral face of axle sleeve is fixed with the first cam and the second cam, the first cam and the second cam are along circumferentially being interspersed, one support is set below axle sleeve, the first push rod, the second push rod and a pull bar are housed on support, the first push rod, the second push rod and pull bar is parallel to each other and perpendicular with the axis of axle sleeve, match with the first cam and the second cam respectively in the top of the first push rod and the second push rod;
The back of support arranges a rotating shaft, rotating shaft one end is fixed the first connecting lever, the other end is fixed the second connecting lever, the lower end of the first connecting lever swinging end and pull bar is connected, the operating mechanism of vacuum circuit-breaker is provided with the combined floodgate axle, one end of combined floodgate axle is fixed with the 3rd connecting lever, the swinging end of the 3rd connecting lever is connected by first connecting rod with the second connecting lever swinging end, and when vacuum circuit-breaker closes a floodgate, the 3rd connecting lever pulls first connecting rod to move down;
Also be provided with trip shaft on the operating mechanism of vacuum circuit-breaker, one end of trip shaft is fixed with the 4th connecting lever, the swinging end of the 4th connecting lever is connected by second connecting rod with the lower end of the second push rod, move down when the second push rod top contacts with the second cam, then make trip shaft turn to trip status by second connecting rod and the 4th connecting lever;
A upper cover plate is fixed in the upper end of pull bar, the front of upper cover plate in axle sleeve;
A lower cover is fixed on the top of the first push rod, and lower cover is the front in axle sleeve also;
Being fixed with a lock dog on the cabinet door matches with the lower end of the first push rod, while closing the Over-The-Counter door, lock dog matches and pulls the first push rod to move down with the lower end of the first push rod, and when the first cam withstands the first push rod top, it is dead that cabinet door knob cabinet door lock is further inserted in the lower end of the first push rod;
The first stage clip is housed between the first push rod and support, the second stage clip is housed between the second push rod and support, the 3rd stage clip is housed between the first pull bar and support.
2. the mutual interlocking gear of a kind of isolating switch according to claim 1, vacuum circuit-breaker and cabinet door, it is characterized in that: also be fixed with the 3rd cam on the axle sleeve outer peripheral face between the first cam and the second cam, the 3rd cam and the first cam circumferentially are being set up in parallel, the 3rd push rod also is installed on support, match with the 3rd cam in the upper end of the 3rd push rod, the 4th stage clip is housed between the 3rd push rod and support, an indicating arm is fixed at the middle part of the 3rd push rod, and the front end of indicating arm stretches out outside support and " combined floodgate " and " separating brake " direction board is housed.
3. the mutual interlocking gear of a kind of isolating switch according to claim 2, vacuum circuit-breaker and cabinet door, it is characterized in that: the middle part of described the first push rod is provided with a strip radial hole, and the middle part of described indicating arm is through the strip radial hole at the first push rod middle part.
4. the mutual interlocking gear of a kind of isolating switch according to claim 1, vacuum circuit-breaker and cabinet door, it is characterized in that: the swinging end of the first connecting lever is provided with the first strip through hole, and the lower end of pull bar is connected on described the first strip through hole by a bearing pin.
5. the mutual interlocking gear of a kind of isolating switch according to claim 1, vacuum circuit-breaker and cabinet door, it is characterized in that: the swinging end of the second connecting lever is provided with the second strip through hole, and first connecting rod is connected on described the second strip through hole by a bearing pin.
6. according to the mutual interlocking gear of the described a kind of isolating switch of claim 1 to 5 any one, vacuum circuit-breaker and cabinet door, it is characterized in that: vacuum circuit-breaker is provided with motor-operating mechanism, described axle sleeve side is provided with the one stroke switch, travel switch is controlled the power supply of described motor-operating mechanism, fix a contact on described axle sleeve outer peripheral face and match with travel switch, the power supply energising that described contact contacts with travel switch and makes described motor-operating mechanism when axle sleeve makes the isolator operation axle turn to closing position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320405183 CN203351457U (en) | 2013-07-09 | 2013-07-09 | Interlocking mechanism among isolating switch, vacuum circuit breaker and cabinet door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320405183 CN203351457U (en) | 2013-07-09 | 2013-07-09 | Interlocking mechanism among isolating switch, vacuum circuit breaker and cabinet door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203351457U true CN203351457U (en) | 2013-12-18 |
Family
ID=49751324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320405183 Expired - Lifetime CN203351457U (en) | 2013-07-09 | 2013-07-09 | Interlocking mechanism among isolating switch, vacuum circuit breaker and cabinet door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203351457U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104157499A (en) * | 2014-08-15 | 2014-11-19 | 南京双京电器集团有限公司 | Novel insulation phase-change switch |
| CN105097326A (en) * | 2015-08-19 | 2015-11-25 | 厦门闽光电气实业有限公司 | Mechanism for enabling isolation switch operation shaft to be interlocked with cabinet door for switch cabinet |
| CN111600216A (en) * | 2020-06-16 | 2020-08-28 | 安徽万华电气股份有限公司 | High-low voltage switch cabinet with safety protection structure and working method thereof |
-
2013
- 2013-07-09 CN CN 201320405183 patent/CN203351457U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104157499A (en) * | 2014-08-15 | 2014-11-19 | 南京双京电器集团有限公司 | Novel insulation phase-change switch |
| CN105097326A (en) * | 2015-08-19 | 2015-11-25 | 厦门闽光电气实业有限公司 | Mechanism for enabling isolation switch operation shaft to be interlocked with cabinet door for switch cabinet |
| CN105097326B (en) * | 2015-08-19 | 2017-05-03 | 厦门闽光电气实业有限公司 | Mechanism for enabling isolation switch operation shaft to be interlocked with cabinet door for switch cabinet |
| CN111600216A (en) * | 2020-06-16 | 2020-08-28 | 安徽万华电气股份有限公司 | High-low voltage switch cabinet with safety protection structure and working method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Cai Pinhua Inventor before: Ye Huiling Inventor before: Lu Gengxian Inventor before: Ye Weifeng |
|
| COR | Change of bibliographic data | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131218 |
|
| CX01 | Expiry of patent term |