CN112447426A - Mechanical interlocking device and dual-power supply system - Google Patents
Mechanical interlocking device and dual-power supply system Download PDFInfo
- Publication number
- CN112447426A CN112447426A CN201910834000.4A CN201910834000A CN112447426A CN 112447426 A CN112447426 A CN 112447426A CN 201910834000 A CN201910834000 A CN 201910834000A CN 112447426 A CN112447426 A CN 112447426A
- Authority
- CN
- China
- Prior art keywords
- swing arm
- mechanical interlock
- base plate
- plate
- along
- Prior art date
- 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.)
- Pending
Links
- 230000009977 dual effect Effects 0.000 claims abstract description 10
- 230000033001 locomotion Effects 0.000 claims description 5
- 238000010276 construction Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/1009—Interconnected mechanisms
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
Embodiments of the present disclosure relate to a mechanical interlock device and a dual power supply system. The mechanical interlock device includes: a base plate disposed along a first direction; a first push rod and a second push rod respectively extending through the bottom plate along a second direction perpendicular to the first direction, the first push rod being adapted to be interlocked with the main shaft of the first circuit breaker to move along the second direction, the second push rod being adapted to be interlocked with the main shaft of the second circuit breaker to move along the second direction; a first pusher plate and a second pusher plate each including a first side coupled to the respective pusher and a second side opposite the first side and adapted to move in a second direction with the respective pusher; a first swing arm and a second swing arm, each rotatably connected to the base plate and adapted to be pushed by a second side of a corresponding pushing plate to rotate relative to the base plate; and the swing arm connecting rod is connected between the first swing arm and the second swing arm.
Description
Technical Field
Embodiments of the present disclosure relate generally to mechanical interlock mating of circuit breakers, and more particularly, to a mechanical interlock device and dual power supply system.
Background
In a power supply system (such as a factory, a school, a hospital, etc.) of low-voltage distribution, a dual power supply (i.e., a main power supply and a standby power supply) is generally used to supply power, so as to ensure the reliability of power required in daily production or work. However, the two power sources of the dual power supply system are not allowed to be supplied simultaneously, which may cause a short circuit of the circuit, thereby causing a serious safety accident. Therefore, the circuit breakers respectively installed on the two power supply circuits can generally adopt double protection measures of electrical interlocking and mechanical interlocking to ensure the safety of the circuits, so that when one circuit breaker is in a closing state, the other circuit breaker cannot be in the closing state, and the two circuit breakers are prevented from being in the closing state at the same time.
The mechanical interlocking device of the circuit breaker in the market at present is mostly only suitable for the interlocking cooperation between two the same circuit breakers, and can't realize the interlocking between two different circuit breakers, this is because the circuit breaker of different models has the conditions such as the closed stroke of main shaft is inconsistent and circuit breaker bottom trompil position is inconsistent.
Therefore, there is a need for a mechanical interlock that is simple in construction, inexpensive in cost, and can achieve an interlocking fit between two different circuit breakers.
Disclosure of Invention
It is an object of the present disclosure to provide a mechanical interlock device and dual power supply system to at least partially solve the above-mentioned problems in the prior art.
According to an aspect of the present disclosure, there is provided a mechanical interlock device including: a base plate disposed along a first direction; a first push rod and a second push rod respectively extending through the bottom plate along a second direction perpendicular to the first direction, the first push rod being adapted to be coupled with a main shaft of a first circuit breaker to move along the second direction, the second push rod being adapted to be coupled with a main shaft of a second circuit breaker to move along the second direction; a first pusher plate and a second pusher plate each including a first side coupled to a respective pusher and a second side opposite the first side and adapted to move with the respective pusher along the second direction; a first swing arm and a second swing arm respectively rotatably connected to the base plate and adapted to be pushed by a second side of a corresponding pushing plate to rotate with respect to the base plate; and a swing arm connecting rod connected between the first swing arm and the second swing arm.
In the embodiment according to the present disclosure, most of the area of the first push plate and the second push plate along the first direction can bear the corresponding push rod, so that the mechanical interlocking device can adapt to a certain degree of position adjustment of the push rod in the first direction, and thus the mechanical interlocking device can be suitable for different types of circuit breakers with different bottom opening positions.
In one embodiment, the mechanical interlock further comprises: a first guide device adapted to guide the first push plate to move in the second direction; and a second guide means adapted to guide the second push plate to move in the second direction. In such an embodiment, the first guide means and the second guide means can be employed to reliably guide the movement of the respective push plates in the second direction while avoiding the sliding of the push plates in the first direction.
In one embodiment, each of the first and second guide devices comprises: the pair of guide rods are arranged on the bottom plate at intervals along the second direction; and a pair of sliding members slidably fitted over the corresponding guide rods, respectively, and supporting the corresponding push plates. In such an embodiment, the respective pusher plates can be reliably guided in the second direction with the cooperation of the slider and the guide bar.
In one embodiment, the first swing arm includes: the first rotating shaft is rotatably connected to the bottom plate; and a first driving part adapted to be pushed by a second side of the first pushing plate in the second direction to rotate the first swing arm with respect to the base plate; and the second swing arm includes: the second rotating shaft is rotatably connected to the bottom plate; and a second driving part adapted to be pushed by a second side of the second pushing plate in the second direction to rotate the second swing arm with respect to the base plate. In such an embodiment, the first swing arm and the second swing arm are simple in structure, easy to manufacture, stable and reliable.
In one embodiment, a distance between the first rotating shaft and the first driving part is different from a distance between the second rotating shaft and the second driving part. In such an embodiment, the arm lengths of the first swing arm and the second swing arm are different, so that the displacement strokes of the first push rod and the second push rod in the second direction are not uniform. The proportion of the displacement stroke of the first push rod and the second push rod along the second direction can be consistent with the proportion of the arm length of the first swing arm and the arm length of the second swing arm, so that the mechanical interlocking device is suitable for two circuit breakers with different main shaft closing strokes.
In one embodiment, the first and second driving parts are located outside the first and second rotating shafts in the first direction. This arrangement of the first and second drive portions makes the mechanical interlock simple in construction and easy to implement.
In one embodiment, the first swing arm further comprises a third rotating shaft, and the third rotating shaft is rotatably connected to the swing arm connecting rod; and the second swing arm further comprises a fourth rotating shaft which is rotatably connected to the swing arm connecting rod. In such an embodiment, the first swing arm and the second swing arm can be reliably connected to the swing arm connecting rods by the third rotating shaft and the fourth rotating shaft, respectively.
In one embodiment, a distance between the first rotating shaft and the third rotating shaft is equal to a distance between the second rotating shaft and the fourth rotating shaft. In such an embodiment, this relative arrangement between the shafts enables the mechanical interlock to reliably effect the transfer of motion.
In one embodiment, the mechanical interlock further comprises: a first mounting plate coupled to the base plate and adapted to mount the first circuit breaker; and a second mounting plate coupled to the base plate and adapted to mount the second circuit breaker. In such an embodiment, the corresponding circuit breaker can be reliably mounted on the mechanical interlock by the first and second mounting plates.
According to another aspect of the present disclosure, there is provided a dual power supply system including: any of the mechanical interlocks described above; a first circuit breaker having a main shaft coupled to the first pushrod of the mechanical interlock; and a second circuit breaker having a main shaft coupled to the second pushrod of the mechanical interlock.
This summary is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description. This summary is not intended to identify key features or essential features of the disclosure, nor is it intended to be used to limit the scope of the disclosure.
Drawings
The above and other objects, features and advantages of the embodiments of the present disclosure will become readily apparent from the following detailed description read in conjunction with the accompanying drawings. Several embodiments of the present disclosure are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings and in which:
FIG. 1 shows a schematic structural view of a mechanical interlock device according to one embodiment of the present disclosure; and
fig. 2 shows a simplified schematic diagram of the mechanical interlock device shown in fig. 1.
Like or corresponding reference characters designate like or corresponding parts throughout the several views.
Detailed Description
Preferred embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The term "include" and variations thereof as used herein is meant to be inclusive in an open-ended manner, i.e., "including but not limited to". Unless specifically stated otherwise, the term "or" means "and/or". The term "based on" means "based at least in part on". The terms "one example embodiment" and "one embodiment" mean "at least one example embodiment". The term "another embodiment" means "at least one additional embodiment". The terms "first," "second," and the like may refer to different or the same object.
As described above, most of the mechanical interlocking devices for circuit breakers on the market are only suitable for interlocking cooperation between two identical circuit breakers, and cannot realize interlocking between two different circuit breakers, because the circuit breakers of different models have conditions of inconsistent closing stroke of the main shaft and inconsistent opening positions at the bottom of the circuit breaker. Embodiments of the present disclosure provide various embodiments to solve the above-described problems. The principles of the present disclosure will be described in detail below in connection with exemplary embodiments with reference to fig. 1-2.
Fig. 1 shows a schematic structural view of a mechanical interlock device 100 according to one embodiment of the present disclosure, and fig. 2 shows a simplified schematic view of the mechanical interlock device 100 shown in fig. 1. As shown in fig. 1 and 2, in general, the mechanical interlock 100 described herein includes a base plate 1, first and second push rods 21 and 22, first and second push plates 31 and 32, first and second swing arms 41 and 42, and a swing arm connecting rod 7.
The base plate 1 may be used to support other components of the mechanical interlock 100. As shown, the base plate 1 extends substantially along a first direction X. In fig. 1 and 2, the first direction X is a substantially horizontal direction. It should be understood, however, that in actual installation, the base plate 1 of the mechanical interlock device 100 need not be disposed in a horizontal orientation, but may be disposed in other orientations depending on the relative arrangement between the two circuit breakers to be mechanically interlocked.
The first push rod 21 and the second push rod 22 extend through the base plate 1 in a second direction Y perpendicular to the first direction X, respectively. The first push rod 21 is adapted to be interlocked with the main shaft of the first circuit breaker to move in the second direction Y. The second push rod 22 is adapted to be interlocked with the main shaft of the second circuit breaker to move in the second direction Y. In some embodiments, the first circuit breaker may be provided in the main power circuit. When the state of the first circuit breaker is changed, the main shaft thereof can push the first push rod 21 to move along the second direction Y. The second circuit breaker may be provided in the backup power supply circuit. When the state of the second circuit breaker is changed, the main shaft thereof can push the second push rod 22 to move along the second direction Y. In other embodiments, the first circuit breaker may be provided in the backup power circuit while the second circuit breaker is provided in the main power circuit.
The first push rod 21 and the second push rod 22 can be linked by other components in the mechanical interlock device 100. That is, when the first push rod 21 moves downward along the second direction Y, the other components in the mechanical interlock device 100 can bring the second push rod 22 to move upward along the second direction Y. Conversely, when the second push rod 22 moves downward along the second direction Y, other components in the mechanical interlock device 100 can bring the first push rod 21 to move upward along the second direction Y. Hereinafter, the interlocking of the first push rod 21 and the second push rod 22 will be described in detail.
The first pusher plate 31 and the second pusher plate 32 extend substantially along the first direction X and respectively comprise a first side 301 and a second side 302 opposite to the first side 301. The first sides 301 of the first and second pusher plates 31, 32 are coupled to the respective push rods 21, 22, respectively, such that the first and second pusher plates 31, 32 are movable along the second direction Y together with the respective push rods 21, 22. Specifically, when the first push rod 21 moves downward along the second direction Y, the first push rod 21 will push the first push plate 31 to move downward along the second direction Y; accordingly, the second pusher plate 32 can push the second pusher 22 to move upward along the second direction Y. Similarly, when the second pusher 22 moves downward in the second direction Y, the second pusher 22 can push the second pusher plate 32 to move downward in the second direction Y; accordingly, the first pusher plate 31 will push the first pusher 21 to move upward along the second direction Y.
The first swing arm 41 and the second swing arm 42 are each rotatably connected to the base plate 1 and can be pushed by the second side 302 of the respective push plate 31, 32 to rotate relative to the base plate 1. The swing arm connecting rod 7 is connected between the first swing arm 41 and the second swing arm 42 to achieve linkage between the first swing arm 41 and the second swing arm 42. Specifically, when the first push plate 31 moves downward in the second direction Y, the second side 302 of the first push plate 31 can push the first swing arm 41 to rotate, for example, in the counterclockwise direction with respect to the base plate 1. The rotation of the first swing arm 41 can be transmitted to the second swing arm 42 via the swing arm connecting rod 7, so that the second swing arm 42 rotates in the same direction as the first swing arm 41 with respect to the base plate 1. The second swing arm 42 can push the second push plate 32 to move upward in the second direction Y during the rotation. Similarly, when the second push plate 32 moves downward in the second direction Y, the second side 302 of the second push plate 32 can push the second swing arm 42 to rotate relative to the base plate 1, for example, in the clockwise direction. The rotation of the second swing arm 42 is transmitted to the first swing arm 41 via the swing arm connecting rod 7, so that the first swing arm 41 rotates in the same direction as the second swing arm 42 with respect to the base plate 1. The first swing arm 41 can push the first push plate 31 to move upward in the second direction Y during the rotation.
In the embodiment according to the present disclosure, the first pushing plate 31 and the second pushing plate 32 have a large area along the first direction X to bear the corresponding push rods 21 and 22, so that a certain degree of position adjustment of the push rods 21 and 22 in the first direction X can be accommodated, thereby enabling the mechanical interlock device 100 to be suitable for different types of circuit breakers with different bottom opening positions. In addition, the mechanical interlock device 100 is simple in construction, easy to manufacture, and low in cost.
By using the mechanical interlocking device 100, after any one circuit breaker is switched on, the corresponding push rod can move downwards along the second direction Y under the driving of the main shaft of the circuit breaker, and the other push rod moves upwards along the second direction Y due to linkage, so that the main shaft of the other circuit breaker is locked and can not be switched on. Therefore, the mechanical interlock device 100 can reliably interlock circuit breakers of various types, thereby ensuring the safety of the dual power supply circuit.
In some embodiments, as shown in fig. 1 and 2, the mechanical interlock device 100 further comprises a first guide device 51 and a second guide device 52. The first guiding device 51 is used for guiding the first pushing plate 31 to move along the second direction Y, and preventing the first pushing plate 31 from translating along the first direction X. Similarly, the second guiding device 52 is used to guide the second pushing plate 32 to move along the second direction Y, while preventing the second pushing plate 32 from translating along the first direction X.
In one embodiment, as shown in fig. 1 and 2, each guide 51, 52 comprises a pair of guide bars 501 and a pair of slides 502. The respective guide rods 501 are provided at intervals in the second direction Y on the base plate 1. Each slide member 502 is slidably fitted over the corresponding guide rod 501 and supports the corresponding push plate 31, 32, respectively. In this way, the respective push plates 31, 32 can be stably supported and reliably guided with the cooperation of the slider 502 and the guide bar 501. In other embodiments, the first and second guide devices 51, 52 may also have other structures, and the scope of the present disclosure is not limited in this respect.
In one embodiment, as shown in fig. 1 and 2, the first swing arm 41 includes a first rotating shaft 411, a first driving part 412, and a third rotating shaft 413. The first swing arm 41 is rotatably connected to the base plate 1 via a first rotating shaft 411. The first driving part 412 is adapted to be pushed by the second side 302 of the first push plate 31 in the second direction Y to rotate the first swing arm 41 relative to the base plate 1. The third rotating shaft 413 is rotatably connected to the swing arm connecting rod 7. Similarly, the second swing arm 42 includes a second rotating shaft 421, a second driving portion 422, and a fourth rotating shaft 423. The second swing arm 42 is rotatably connected to the base plate 1 via a second rotating shaft 421. The second driving part 422 is adapted to be pushed by the second side 302 of the second push plate 32 in the second direction Y to rotate the second swing arm 42 relative to the base plate 1. The fourth rotating shaft 423 is rotatably connected to the swing arm connecting rod 7.
When the first push plate 31 moves downward in the second direction Y, the second side 302 of the first push plate 31 can push the first driving part 412, so that the first swing arm 41 rotates around the first rotating shaft 411, for example, in the counterclockwise direction. The rotation of the first swing arm 41 can be transmitted to the second swing arm 42 via the swing arm connecting rod 7, so that the second swing arm 42 rotates about the second rotating shaft 421 in the same direction as the first swing arm 41. During the rotation of the second swing arm 42, the second driving part 422 thereof can push the second push plate 32 to move upward along the second direction Y.
Similarly, when the second push plate 32 moves downward along the second direction Y, the second side 302 of the second push plate 32 can push the second driving part 422, so that the second swing arm 42 rotates around the second rotating shaft 421, for example, in a clockwise direction. The rotation of the second swing arm 42 is transmitted to the first swing arm 41 via the swing arm connecting rod 7, so that the first swing arm 41 rotates in the same direction as the second swing arm 42 about the first rotating shaft 411. During the rotation of the first swing arm 41, the first driving portion 412 thereof can push the first push plate 31 to move upward along the second direction Y.
In some embodiments, as shown in fig. 1 and 2, a distance between the first rotating shaft 411 and the first driving part 412 is different from a distance between the second rotating shaft 421 and the second driving part 422. That is, the first swing arm 41 and the second swing arm 42 may have different arm lengths so that the displacement strokes of the first push rod 21 and the second push rod 22 in the second direction Y are different. The ratio of the displacement strokes of the first push rod 21 and the second push rod 22 in the second direction Y may be consistent with the ratio of the arm lengths of the first swing arm 41 and the second swing arm 42, thereby making the mechanical interlock device 100 suitable for two circuit breakers having different main shaft closing strokes. In other embodiments, the distance between the first rotating shaft 411 and the first driving part 412 may be equal to the distance between the second rotating shaft 421 and the second driving part 422, so that the mechanical interlock device 100 is suitable for two circuit breakers having the same main shaft closing stroke.
In some embodiments, as shown in fig. 1 and 2, the first driving part 412 and the second driving part 422 are located outside the first rotating shaft 411 and the second rotating shaft 421 in the first direction X. This arrangement of the first and second drivers 412, 422 makes the mechanical interlock 100 simple in construction and easy to implement. In other embodiments, the first and second driving parts 412 and 422 may have other arrangements with respect to the first and second rotating shafts 411 and 421, and the scope of the present disclosure is not limited in this respect.
In some embodiments, as shown in fig. 1 and 2, a distance between the first rotating shaft 411 and the third rotating shaft 413 may be substantially equal to a distance between the second rotating shaft 421 and the fourth rotating shaft 423. With such a relative arrangement, the mechanical interlock device 100 can reliably effect the transmission of motion. In other embodiments, the distance between the first rotating shaft 411 and the third rotating shaft 413 may be different from the distance between the second rotating shaft 421 and the fourth rotating shaft 423, and the scope of the present disclosure is not limited in this respect.
In some embodiments, as shown in FIG. 1, the mechanical interlock device 100 further includes a first mounting plate 61 and a second mounting plate 62. The first mounting plate 61 is coupled to the base plate 1 and is adapted to mount a first circuit breaker. A second mounting plate 62 is coupled to the base plate 1 and is adapted to mount a second circuit breaker. The first mounting plate 61 and the second mounting plate 62 enable the corresponding circuit breaker to be securely mounted to the mechanical interlock 100. In other embodiments, the individual circuit breakers may also be mounted on the mechanical interlock device 100 in other ways, and the scope of the present disclosure is not limited in this respect.
In an embodiment according to the present disclosure, a dual power supply system is also provided. The system includes any of the mechanical interlocks 100 described above; a first circuit breaker, the main shaft of which is coupled to the first push rod 21 of the mechanical interlock 100; and a second circuit breaker whose main shaft is coupled to the second push rod 22 of the mechanical interlock 100. In one embodiment, the first circuit breaker may be arranged in the main power supply circuit and the second circuit breaker in the backup power supply circuit. In another embodiment, the first circuit breaker may be arranged in the backup power circuit and the second circuit breaker in the main power circuit.
When the first breaker is switched on, the first push rod 21 can move downwards along the second direction Y under the driving of the breaker spindle, and the second push rod 22 moves upwards along the second direction Y due to linkage, so that the spindle of the second breaker is locked, and the second breaker cannot be switched on. Similarly, when the second circuit breaker is switched on, the second push rod 22 can move downwards along the second direction Y under the driving of the main shaft of the circuit breaker, and the first push rod 21 moves upwards along the second direction Y due to linkage, so as to lock the main shaft of the first circuit breaker, so that the main shaft of the first circuit breaker cannot be switched on. Therefore, the mechanical interlock device 100 can reliably interlock circuit breakers of various types, thereby ensuring the safety of the dual power supply system.
Having described embodiments of the present disclosure, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (10)
1. A mechanical interlock device comprising:
a base plate (1) arranged along a first direction (X);
a first push rod (21) and a second push rod (22), respectively extending through the base plate (1) along a second direction (Y) perpendicular to the first direction (X), the first push rod (21) being adapted to be coupled with a main shaft of a first circuit breaker to move along the second direction (Y), the second push rod (22) being adapted to be coupled with a main shaft of a second circuit breaker to move along the second direction (Y);
a first pusher plate (31) and a second pusher plate (32) each comprising a first side (301) coupled to a respective pusher (21; 22) and a second side (302) opposite to the first side (301) and adapted to move together with the respective pusher (21; 22) along the second direction (Y);
a first swing arm (41) and a second swing arm (42), each rotatably connected to the base plate (1) and adapted to be pushed by a second side (302) of a respective pushing plate (31; 32) to rotate with respect to the base plate (1); and
and a swing arm connecting rod (7) connected between the first swing arm (41) and the second swing arm (42).
2. The mechanical interlock of claim 1 further comprising:
-first guide means (51) adapted to guide the movement of said first pusher plate (31) along said second direction (Y); and
-second guiding means (52) adapted to guide the movement of said second pusher plate (32) along said second direction (Y).
3. The mechanical interlock of claim 2, wherein each of the first guide (51) and the second guide (52) comprises:
a pair of guide rods (501) arranged on the base plate (1) at intervals along the second direction (Y); and
and a pair of sliding members (502) slidably fitted over the corresponding guide rods (501) and supporting the corresponding push plates (31; 32), respectively.
4. The mechanical interlock device according to claim 1,
wherein the first swing arm (41) comprises: a first rotating shaft (411) rotatably connected to the base plate (1); and a first drive portion (412) adapted to be pushed by a second side (302) of the first pushing plate (31) along the second direction (Y) to rotate the first swing arm (41) with respect to the base plate (1); and is
Wherein the second swing arm (42) comprises: a second rotating shaft (421) rotatably connected to the base plate (1); and a second drive section (422) adapted to be pushed by a second side (302) of the second push plate (32) along the second direction (Y) to rotate the second swing arm (42) relative to the base plate (1).
5. A mechanical interlock device according to claim 4, wherein the distance between the first rotational shaft (411) and the first driving part (412) is different from the distance between the second rotational shaft (421) and the second driving part (422).
6. A mechanical interlock device according to claim 4, wherein the first drive part (412) and the second drive part (422) are located outside the first rotation shaft (411) and the second rotation shaft (421) in the first direction (X).
7. The mechanical interlock device according to claim 4,
wherein the first swing arm (41) further comprises a third rotating shaft (413), the third rotating shaft (413) is rotatably connected to the swing arm connecting rod (7); and is
Wherein the second swing arm (42) further comprises a fourth rotation shaft (423), the fourth rotation shaft (423) being rotationally connected to the swing arm connecting rod (7).
8. A mechanical interlock device according to claim 7, wherein the distance between the first rotational shaft (411) and the third rotational shaft (413) is equal to the distance between the second rotational shaft (421) and the fourth rotational shaft (423).
9. The mechanical interlock of claim 1 further comprising:
a first mounting plate (61) coupled to the base plate (1) and adapted to mount the first circuit breaker; and
a second mounting plate (62) coupled to the base plate (1) and adapted to mount the second circuit breaker.
10. A dual power supply system comprising:
a mechanical interlock device according to any one of claims 1 to 9;
a first circuit breaker, the main shaft of which is coupled to the first push rod (21) of the mechanical interlock; and
a second circuit breaker having a main shaft coupled to the second pushrod (22) of the mechanical interlock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910834000.4A CN112447426A (en) | 2019-09-04 | 2019-09-04 | Mechanical interlocking device and dual-power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910834000.4A CN112447426A (en) | 2019-09-04 | 2019-09-04 | Mechanical interlocking device and dual-power supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112447426A true CN112447426A (en) | 2021-03-05 |
Family
ID=74734033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910834000.4A Pending CN112447426A (en) | 2019-09-04 | 2019-09-04 | Mechanical interlocking device and dual-power supply system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112447426A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000073041A (en) * | 1999-05-04 | 2000-12-05 | 이종수 | interlock between circuit breaker and disconnec-tor in power distributing board |
| CN101127278A (en) * | 2006-08-18 | 2008-02-20 | 宁波奇乐电器实业总公司 | Automatic conversion switch electrical appliance |
| CN102426952A (en) * | 2011-09-19 | 2012-04-25 | 广东天富电气集团有限公司 | Mechanical interlocking device and method of bottom plate |
| CN105161336A (en) * | 2015-09-28 | 2015-12-16 | 上海广电电气(集团)股份有限公司 | Machinery interlocking device used for ring network cabinet dual-power-supply load cabinet power supply |
| CN105336524A (en) * | 2015-09-28 | 2016-02-17 | 上海广电电气(集团)股份有限公司 | Dual power supply circuit breaker cabinet powered mechanical interlocking mechanism |
| CN206059218U (en) * | 2016-09-30 | 2017-03-29 | 施耐德电气工业公司 | Mechanical interlocks and dual-power transfer switch |
| CN107887200A (en) * | 2016-09-30 | 2018-04-06 | 施耐德电气工业公司 | Mechanical interlocks, dual-power transfer switch and the method for operating it |
| CN208538723U (en) * | 2018-04-25 | 2019-02-22 | Abb股份公司 | Mechanical interlocks and electrical equipment for electrical equipment |
-
2019
- 2019-09-04 CN CN201910834000.4A patent/CN112447426A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000073041A (en) * | 1999-05-04 | 2000-12-05 | 이종수 | interlock between circuit breaker and disconnec-tor in power distributing board |
| CN101127278A (en) * | 2006-08-18 | 2008-02-20 | 宁波奇乐电器实业总公司 | Automatic conversion switch electrical appliance |
| CN102426952A (en) * | 2011-09-19 | 2012-04-25 | 广东天富电气集团有限公司 | Mechanical interlocking device and method of bottom plate |
| CN105161336A (en) * | 2015-09-28 | 2015-12-16 | 上海广电电气(集团)股份有限公司 | Machinery interlocking device used for ring network cabinet dual-power-supply load cabinet power supply |
| CN105336524A (en) * | 2015-09-28 | 2016-02-17 | 上海广电电气(集团)股份有限公司 | Dual power supply circuit breaker cabinet powered mechanical interlocking mechanism |
| CN206059218U (en) * | 2016-09-30 | 2017-03-29 | 施耐德电气工业公司 | Mechanical interlocks and dual-power transfer switch |
| CN107887200A (en) * | 2016-09-30 | 2018-04-06 | 施耐德电气工业公司 | Mechanical interlocks, dual-power transfer switch and the method for operating it |
| CN208538723U (en) * | 2018-04-25 | 2019-02-22 | Abb股份公司 | Mechanical interlocks and electrical equipment for electrical equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7361857B2 (en) | External operating handle mechanism for mold cased circuit breaker | |
| CN101388301B (en) | Operating mechanism with adjustment of contact force | |
| GB2128411A (en) | Electric switch in which the control lever travel is arrested if the contacts become welded together | |
| WO2017088802A1 (en) | Interlocking device for switchgear, and switch cabinet | |
| EP3323587A1 (en) | A bottle blowing machine | |
| US20170103865A1 (en) | Automatic Transfer Switch | |
| CN112447426A (en) | Mechanical interlocking device and dual-power supply system | |
| CN201364864Y (en) | Multi-phase electrical switch device with circuit breaking slide valve | |
| US6388214B1 (en) | Mechanical and gate for interlocking electric power switches and distribution system incorporating same | |
| CN101512429A (en) | Light quantity control device | |
| CN205753136U (en) | A kind of chassis interlocking gear and chopper | |
| EP3051566B1 (en) | Exchange operating mechanism | |
| CA2129177C (en) | Linear motor driven transfer switch assembly | |
| AU602777B2 (en) | Circuit-breaker | |
| KR200183457Y1 (en) | Mechanical interlock device in crane-type mccb | |
| CN105679614A (en) | Apparatus for remotely operating handle of circuit breaker | |
| CN210956495U (en) | Mechanical interlocking assembly, contactor assembly and electrical cabinet | |
| CN201449912U (en) | Bevel gear type double rocking lever floating rod switch device | |
| US10157721B2 (en) | Electrical breaker rear side actuator | |
| CN102782794A (en) | Electrical line protection lock mechanism with a differential function | |
| KR20030065901A (en) | Driving mechanism of disconnector switch | |
| CN213717455U (en) | Interlocking valve mechanism | |
| CN208970408U (en) | A kind of ring network cabinet operating mechanism | |
| CN210985429U (en) | Automatic switch-on position lock of circuit breaker | |
| CN218004666U (en) | Interlocking conversion operating device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |