CN219303516U - Miniaturized cubical switchboard interlock - Google Patents
Miniaturized cubical switchboard interlock Download PDFInfo
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- CN219303516U CN219303516U CN202223470769.9U CN202223470769U CN219303516U CN 219303516 U CN219303516 U CN 219303516U CN 202223470769 U CN202223470769 U CN 202223470769U CN 219303516 U CN219303516 U CN 219303516U
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- interlocking
- sliding plate
- shaft
- crank arm
- guide rail
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Abstract
The utility model relates to the field of switch cabinets, in particular to a miniaturized switch cabinet interlocking device, which comprises a cabinet body, a guide rail interlocking assembly, a sliding plate assembly and a locking switch; the guide rail interlocking assembly comprises a guide rail, an interlocking shaft, an interlocking plug connector and an elastic reset piece, wherein the interlocking shaft is arranged in a rotating manner relative to the cabinet body, the guide rail interlocking assembly further comprises a transmission mechanism which is connected between the sliding plate and the interlocking shaft in a transmission manner, the sliding plate drives the interlocking shaft to rotate through the transmission mechanism in the downward movement process, and the transmission mechanism comprises a first crank arm which is fixedly connected to the interlocking shaft and can rotate in the left-right direction around the axis of the interlocking shaft, and a degradation mechanism hinged between the first crank arm and the sliding plate. The utility model is used for reducing the use space of the device in the width direction of the cabinet.
Description
Technical Field
The utility model relates to the field of switch cabinets, in particular to a miniaturized switch cabinet interlocking device.
Background
KYN28-12 armoured removable alternating current metal closed switch equipment (hereinafter referred to as switch cabinet) is suitable for a three-phase alternating current power system, is used for receiving and distributing electric energy and controlling, protecting and detecting a circuit, has very important position in the whole power industry, and has five-prevention interlocking function according to national regulations: the circuit breaker is prevented from being opened or closed by mistake; the on-load separation switch is prevented; preventing the electrification from closing the grounding switch; preventing the circuit breaker from being closed with the grounding wire; preventing false entry into the charging interval. Has the advantages of advanced and reasonable structure, superior performance, safety, reliability and the like. In order to adapt to the development of urban transformation and construction, the miniaturized switch cabinet is gradually developed, and has the advantages of small volume and light weight. The interlocking mechanism of the switch cabinet is mainly used for preventing the electrified earthing switch from being closed and preventing the electrified earthing wire from being closed and preventing the circuit breaker from being closed, and can well protect the safety of operators and equipment.
Chinese patent (201110084708.6) discloses a switch cabinet interlocking mechanism, comprising a guide rail interlocking device, a grounding switch operating device, a slide plate device and an electromagnetic locking device, wherein the guide rail interlocking device comprises an interlocking shaft, a return torsion spring, a clamping foot, a swing arm, a pull rod and a guide rail with a clamping foot cavity, one end of the swing arm is fixed at the shaft end of a rotating shaft, the other end of the swing arm is connected with one end of the pull rod, the grounding switch operating device comprises a rotating shaft and a follower plate, the rotating shaft is rotatably supported on a pair of rotating shaft supports, the rotating shaft supports are fixed in the cabinet cavity of the cabinet body, and the follower plate is fixed at one end of the rotating shaft and is connected with the pull rod. The pull rod can be driven to move in the left-right direction (the width direction of the cabinet) in the rotating process of the rotating shaft, so that the swing arm and the interlocking shaft are driven to rotate, and the clamping foot is controlled to stretch and retract in the clamping foot cavity, so that the protection purpose is achieved.
The transmission ratio between the rotating shaft and the interlocking shaft in the interlocking mechanism of the switch cabinet is close to 1:1, so that the swing arm needs to be longer, and the swing arm and the pull rod move in the left-right direction, so that a large cabinet width space needs to be occupied. Compared with the conventional switch cabinet, the size of the miniaturized switch cabinet is reduced, and the reserved cabinet frame space is limited by other parts and cannot adopt the switch cabinet interlocking mechanism.
Disclosure of Invention
The utility model aims at: a miniaturized switchgear interlock device for reducing the space of use of the device in the width direction of the switchgear is provided.
The utility model is realized by the following technical scheme: a miniaturized cubical switchboard interlock, its characterized in that: the device comprises a cabinet body, a guide rail interlocking assembly, a sliding plate assembly and a locking switch; the guide rail interlocking assembly comprises a guide rail, an interlocking shaft, an interlocking plug connector and an elastic reset piece, wherein the interlocking shaft is rotatably arranged relative to the cabinet body, the interlocking plug connector is connected to the interlocking shaft and rotates along with the interlocking shaft, the guide rail is fixedly arranged relative to the cabinet body and is positioned beside the interlocking shaft, the guide rail is provided with a notch corresponding to the interlocking plug connector, the interlocking shaft can rotate under the action of a driving force and drives the interlocking plug connector to be inserted into and extend out of the notch, and the elastic reset piece is used for driving the interlocking shaft to withdraw from the notch so as to drive the interlocking plug connector to reset;
the cabinet body is provided with a grounding switch operation hole, the sliding plate assembly comprises a sliding plate which is connected with the cabinet body in a vertical sliding way, the sliding plate is provided with an upper stroke and a lower stroke, the grounding switch operation hole is shielded when the sliding plate is in the upper stroke, the grounding switch operation hole can be opened when the sliding plate moves to the lower stroke, and the locking switch is connected to the sliding plate and is used for limiting the sliding plate to the initial position of the upper stroke or releasing the fixed state of the sliding plate;
the interlocking mechanism of the switch cabinet further comprises a transmission mechanism which is connected between the sliding plate and the interlocking shaft in a transmission manner, the sliding plate drives the interlocking shaft to rotate through the transmission mechanism in the downward movement process, and the transmission mechanism comprises a first crank arm which is fixedly connected to the interlocking shaft and can rotate around the axis of the interlocking shaft in the left-right direction, and a degradation mechanism which is hinged between the first crank arm and the sliding plate.
According to the miniaturized switch cabinet interlocking device, the degradation mechanism is adopted between the sliding plate and the interlocking shaft, so that the transmission ratio is reduced, the length of the first crank arm can be shorter, the using space in the width direction of the cabinet can be reduced, and the miniaturized switch cabinet can be used.
As a further improvement, the degradation mechanism comprises a rotating shaft support, an interlocking crank arm and a connecting rod, wherein the rotating shaft support is fixed on the cabinet body and is positioned below the interlocking shaft, two ends of the interlocking crank arm are respectively hinged with the rotating shaft support and the sliding plate, the lower end of the connecting rod is hinged with the middle part of the interlocking crank arm, the upper end of the connecting rod is hinged with the first crank arm through a first pin shaft, the first pin shaft extends in the front-back direction, and the sliding plate can drive the interlocking crank arm to move up and down around the hinge shaft of the interlocking crank arm and the rotating shaft support in the front-back space when moving up and down, so that the connecting rod is driven to move up and down in the front-back space to control the rotation of the interlocking shaft.
Because the motion directions of the interlocking crank arm and the connecting rod are in the front-back space, the space in the left-right direction (namely the cabinet width space) is not occupied, and thus the use space in the cabinet width direction can be further reduced.
As a further improvement, the interlocking crank arm and the sliding plate are hinged in the following manner: the corresponding end of the interlocking crank arm is provided with a long groove, the sliding plate is provided with a second pin shaft, and the second pin shaft is movably inserted into the long groove. The interlocking crank arm is provided with a long groove, so that manufacturing and assembling errors of the interlocking crank arm and the connecting rod can be counteracted.
Preferably, the sliding plate assembly further comprises a seat block fixedly arranged with the cabinet body, and an upper sliding block and a lower sliding block fixedly arranged on the seat block, wherein the lower sliding block is positioned below the upper sliding block, and the sliding plate moves up and down between the upper sliding block and the lower sliding block so as to limit the up and down movement strokes.
Preferably, the notch on the guide rail comprises an upper cavity opening and a lower cavity opening, the interlocking plug connector comprises an outer support and a stop iron, the outer support is connected with the interlocking shaft, the outer support is opposite to the lower cavity opening and can move in the lower cavity opening in a telescopic mode, and the stop iron is opposite to the upper cavity opening and can move in the upper cavity opening in a telescopic mode.
Preferably, the elastic reset piece is a reset torsion spring connected between the interlocking shaft and the guide rail.
As the preferred mode, be equipped with downward convex hem on the slide, the latching switch is the electro-magnet of fixing on the cabinet body and being located the hem below, the electromagnetic lock includes the body, locates in the body and can relative body back and forth concertina movement's iron core and control the flexible electromagnetic component of iron core according to electrified condition.
As a further improvement, the slide plate is also provided with a handle extending into the grounding switch operation hole.
Preferably, the center distance between the center line of the first crank arm hinged with the degradation mechanism and the axis of the interlocking shaft is as follows: 8-18mm.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the miniaturized switch cabinet interlocking device, the degradation mechanism is adopted between the sliding plate and the interlocking shaft, so that the length of the first crank arm can be made shorter, the use space in the cabinet width direction can be reduced, and the miniaturized switch cabinet can be used.
2. The motion directions of the interlocking crank arm and the connecting rod are in the front-back space, and the space in the left-right direction (namely the cabinet width space) is not occupied, so that the use space in the cabinet width direction can be further reduced.
3. The interlocking crank arm is provided with the long groove, so that manufacturing and assembling errors of the interlocking crank arm and the connecting rod can be counteracted.
Drawings
FIG. 1 is a schematic diagram of a first embodiment of the present utility model;
FIG. 2 is a schematic diagram of a second embodiment of the present utility model;
fig. 3 is a schematic diagram of a third embodiment of the present utility model.
Description of the reference numerals: 1. a cabinet body; 11. a ground switch operation hole; 2. a rail interlock assembly; 21. a guide rail; 22. an interlock shaft; 23. an interlocking plug; 231. an outer bracket; 232. a stop iron; 24. an elastic reset piece; 25. a notch; 251. a lower cavity port; 252. an upper cavity port; 3. a skateboard assembly; 31. a slide plate; 311. folding edges; 312. a handle; 32. a seat block; 33. an upper slider; 34. a lower slide block; 4. a lockout switch; 41. a body; 42. an iron core; 5. a transmission mechanism; 51. a first lever; 52. a rotating shaft bracket; 53. an interlocking crank arm; 531. a long groove; 54. a connecting rod; 55. a first pin; 56. a second pin; 57. a third pin; 58. a fourth pin; 6. a ground switch operating assembly; 61. a hexagonal shaft; 62. and (3) rotating the shaft.
Detailed Description
The utility model is described in detail below with reference to the accompanying drawings:
the embodiment relates to a miniaturized switch cabinet interlocking device, which is shown in figures 1-3 and comprises a cabinet body 1, a guide rail interlocking assembly 2, a sliding plate assembly 3 and a locking switch 4; the guide rail interlocking assembly 2 comprises a guide rail 21, an interlocking shaft 22, an interlocking plug connector 23 and an elastic reset piece 24, wherein the interlocking shaft 22 is rotatably arranged relative to the cabinet body 1, the interlocking plug connector 23 is connected to the interlocking shaft 22 and rotates along with the interlocking shaft 22, the guide rail 21 is fixedly arranged relative to the cabinet body 1 and positioned beside the interlocking shaft 22, the guide rail 21 is provided with a notch 25 corresponding to the interlocking plug connector 23, the interlocking shaft 22 can rotate under the action of driving force and drives the interlocking plug connector 23 to be inserted into and extend out of the notch 25, and the elastic reset piece 24 is used for driving the interlocking shaft 22 to withdraw from the notch 25 so as to drive the interlocking plug connector 23 to reset;
the cabinet body 1 is provided with a grounding switch operation hole 11, the sliding plate assembly 3 comprises a sliding plate 31 which is connected with the cabinet body 1 in a vertical sliding way, the sliding plate 31 is provided with an upper stroke and a lower stroke, the sliding plate 31 shields the grounding switch operation hole 11 when being in an upper stroke, the sliding plate 31 can open the grounding switch operation hole 11 when moving to a lower stroke, and the locking switch 4 is connected to the sliding plate 31 and is used for limiting the sliding plate 31 to an initial position of the upper stroke or releasing a fixed state of the sliding plate 31;
the interlocking mechanism of the switch cabinet further comprises a transmission mechanism 5 which is in transmission connection between the sliding plate 31 and the interlocking shaft 22, the sliding plate 31 drives the interlocking shaft 22 to rotate through the transmission mechanism 5 in the downward movement process, and the transmission mechanism 5 comprises a first crank arm 51 which is fixedly connected to the interlocking shaft 22 and can rotate around the axis of the interlocking shaft 22 in the left-right direction, and a degradation mechanism which is hinged between the first crank arm 51 and the sliding plate 31.
Since the degradation mechanism is adopted between the slide plate 31 and the interlocking shaft 22, the length of the first crank arm 51 can be made shorter, so that the use space in the cabinet width direction can be reduced, thereby satisfying the use of the miniaturized switch cabinet.
As a further improvement, as shown in fig. 2, the degrading mechanism includes a rotating shaft support 52, an interlocking crank arm 53, and a connecting rod 54, where the rotating shaft support 52 is fixed on the cabinet 1 and is located below the interlocking shaft 22, two ends of the interlocking crank arm 53 are hinged to the rotating shaft support 52 and the sliding plate 31 respectively, a lower end of the connecting rod 54 is hinged to a middle part of the interlocking crank arm 53, an upper end of the connecting rod 54 is hinged to the first crank arm 51 through a first pin shaft 55, the first pin shaft 55 extends in a front-rear direction, and when the sliding plate 31 moves up and down, the interlocking crank arm 53 can be driven to move up and down around its hinge shaft with the rotating shaft support 52 in a front-rear space, so as to drive the connecting rod 54 to move up and down in the front-rear space, so as to control rotation of the interlocking shaft 22.
Since the movement directions of the interlocking crank arm 53 and the connecting rod 54 are in the front-rear direction, the space in the left-right direction (i.e., the cabinet width space) is not occupied, and thus the use space in the cabinet width direction can be further reduced.
The interlocking crank arm 53 is connected with the rotating shaft bracket 52 through a third pin shaft 57, and the connecting rod 54 is connected with the interlocking crank arm 53 through a fourth pin shaft 58.
As a further improvement, the interlocking crank arm 53 is hinged with the slide plate 31 in the following manner: the corresponding end of the interlocking crank arm 53 is provided with a long groove 531, the sliding plate 31 is provided with a second pin shaft 56, and the second pin shaft 56 is movably inserted into the long groove 531. Wherein the interlocking lever 53 is provided with an elongated slot 531 which counteracts manufacturing and assembly errors of the interlocking lever 53 and the connecting rod 54.
Preferably, the sliding plate assembly 3 further comprises a seat block 32 fixedly arranged with the cabinet body 1, and an upper sliding block 33 and a lower sliding block 34 fixedly arranged on the seat block 32, wherein the lower sliding block 34 is positioned below the upper sliding block 33, and the sliding plate 31 moves up and down between the upper sliding block 33 and the lower sliding block 34 so as to limit the up and down movement stroke.
Preferably, the notch 25 on the guide rail 21 includes an upper cavity opening 252 and a lower cavity opening 251, the interlocking plug 23 includes an outer bracket 231 connected with the interlocking shaft 22 and a stop iron 232, the outer bracket 231 is opposite to the lower cavity opening 251 and can move telescopically in the lower cavity opening 251, and the stop iron 232 is opposite to the upper cavity opening 252 and can move telescopically in the upper cavity opening 252.
Preferably, the elastic return member 24 is a return torsion spring connected between the interlocking shaft and the guide rail.
Preferably, the slide plate is provided with a downward protruding folded edge 311, the locking switch 4 is an electromagnet fixed on the cabinet body 1 and located below the folded edge 311, and the electromagnetic lock comprises a body 41, an iron core 42 arranged in the body 41 and capable of moving back and forth relative to the body 41, and an electromagnetic assembly for controlling the iron core 42 to stretch according to the electrification condition.
As a further improvement, the slide plate is also provided with a handle 312 extending into the ground switch operating hole 11.
Preferably, the center distance between the center line of the first crank arm 51 hinged with the degradation mechanism and the axis of the interlocking shaft 22 is: 8-18mm. Preferably 13mm, which reduces the space in use in the width direction of the cabinet by 25mm compared to conventional switchgear interlocks.
The grounding switch operating hole 11 is correspondingly provided with a grounding switch operating assembly 6, the grounding switch operating assembly 6 comprises a rotatable hexagonal shaft 61 and a rotating shaft 62, the rotating shaft 62 is connected with the grounding switch, and the switching-on and switching-off state of the grounding switch can be controlled in the rotating process of the rotating shaft 62.
The working procedure of this embodiment is as follows:
after the sliding plate 31 slides downwards, the second hinge pin shaft drives the interlocking crank arm 53 to rotate, so as to drive the connecting rod 54 to move downwards and the first crank arm 51 to rotate downwards, the interlocking shaft 22 keeps rotating synchronously with the first crank arm 51, and the rotation of the interlocking shaft 22 drives the interlocking plug connector 23 to extend out of the notch 25; when the circuit breaker or the handcart is in the working position, the stop iron 232 cannot extend out due to the limit of the circuit breaker or the handcart, so that the sliding plate 31 cannot move downwards, and the grounding switch operating hole 11 cannot be opened, so that the hexagonal shaft 61 of the grounding switch operating assembly 6 cannot be inserted into a sleeve tool to operate, and the grounding switch is controlled to work, namely, the live-line-preventing grounding switch with the five-prevention interlocking function is realized.
When the circuit breaker or the handcart is in the test position, after the sliding plate 31 moves downwards, the grounding switch operation hole 11 is opened, the hexagonal shaft 61 of the grounding switch operation assembly 6 can be inserted into the sleeve tool to conduct grounding switch closing, and the outer bracket 231 is in an extending state at this time, so that the circuit breaker or the handcart cannot swing into the working position through the guide rail 21, namely the grounding switch preventing electrification and closing with the five-prevention interlocking function is used for preventing the circuit breaker with the grounding wire. And the action of the electromagnet can limit the sliding of the sliding plate 31, so that the grounding switch operation hole 11 can not be opened under the electrified condition.
While the utility model has been illustrated and described with respect to specific embodiments and alternatives thereof, it will be appreciated that various changes and modifications can be made therein without departing from the spirit of the utility model. It is, therefore, to be understood that the utility model is not to be in any way limited except by the appended claims and their equivalents.
Claims (9)
1. A miniaturized cubical switchboard interlock, its characterized in that: the device comprises a cabinet body (1), a guide rail interlocking assembly (2), a sliding plate assembly (3) and a locking switch (4); the guide rail interlocking assembly (2) comprises a guide rail (21), an interlocking shaft (22), an interlocking plug connector (23) and an elastic reset piece (24), wherein the interlocking shaft (22) is rotatably arranged relative to the cabinet body (1), the interlocking plug connector (23) is connected to the interlocking shaft (22) and rotates along with the interlocking shaft, the guide rail (21) is fixedly arranged relative to the cabinet body (1) and is positioned beside the interlocking shaft (22), the guide rail (21) is provided with a notch (25) corresponding to the interlocking plug connector (23), the interlocking shaft (22) can rotate under the action of driving force and drives the interlocking plug connector (23) to be inserted into and extend out of the notch (25), and the elastic reset piece (24) is used for driving the interlocking shaft (22) to withdraw from the notch (25) so as to drive the interlocking plug connector (23) to reset;
the cabinet body (1) is provided with a grounding switch operation hole (11), the sliding plate assembly (3) comprises a sliding plate (31) which is connected with the cabinet body (1) in an up-and-down sliding way, the sliding plate (31) is provided with an upper stroke and a lower stroke, the grounding switch operation hole (11) is shielded when the sliding plate (31) is in the upper stroke, the grounding switch operation hole (11) can be opened when the sliding plate (31) moves to the lower stroke, and the locking switch (4) is connected to the sliding plate (31) and is used for limiting the sliding plate (31) to the initial position of the upper stroke or releasing the fixed state of the sliding plate (31);
the interlocking device of the switch cabinet further comprises a transmission mechanism (5) which is connected between the sliding plate (31) and the interlocking shaft (22) in a transmission manner, the sliding plate (31) drives the interlocking shaft (22) to rotate through the transmission mechanism (5) in the downward movement process, and the transmission mechanism (5) comprises a first crank arm (51) which is fixedly connected to the interlocking shaft (22) and can rotate around the axis of the interlocking shaft (22) in the left-right direction, and a degradation mechanism which is hinged between the first crank arm (51) and the sliding plate (31).
2. A miniaturized switchgear interlock according to claim 1, characterized in that: the degradation mechanism comprises a rotating shaft support (52), an interlocking crank arm (53) and a connecting rod (54), wherein the rotating shaft support (52) is fixed on the cabinet body (1) and located below the interlocking shaft (22), two ends of the interlocking crank arm (53) are hinged with the rotating shaft support (52) and the sliding plate (31) respectively, the lower end of the connecting rod (54) is hinged with the middle part of the interlocking crank arm (53), the upper end of the connecting rod (54) is hinged with the first crank arm (51) through a first pin shaft (55), the first pin shaft (55) extends along the front-back direction, and the sliding plate (31) can drive the interlocking crank arm (53) to move up and down around the hinge shaft of the interlocking crank arm and the rotating shaft support (52) in the front-back space so as to drive the connecting rod (54) to move up and down in the front-back space to control the rotation of the interlocking shaft (22).
3. A miniaturized switchgear interlock as claimed in claim 2, wherein: the interlocking crank arm (53) and the sliding plate (31) are hinged in the following manner: the corresponding end part of the interlocking crank arm (53) is provided with a long groove (531), the sliding plate (31) is provided with a second pin shaft (56), and the second pin shaft (56) is movably inserted into the long groove (531).
4. A miniaturized switchgear interlock according to claim 1, characterized in that: the sliding plate assembly (3) further comprises a seat block (32) fixedly arranged with the cabinet body (1), and an upper sliding block (33) and a lower sliding block (34) fixedly arranged on the seat block (32), wherein the lower sliding block (34) is positioned below the upper sliding block (33), and the sliding plate (31) moves up and down between the upper sliding block (33) and the lower sliding block (34) so as to limit the up and down two movement strokes.
5. A miniaturized switchgear interlock according to claim 1, characterized in that: the notch (25) on the guide rail (21) comprises an upper cavity opening (252) and a lower cavity opening (251), the interlocking plug connector (23) comprises an outer support (231) connected with the interlocking shaft (22) and a stop iron (232), the outer support (231) is opposite to the lower cavity opening (251) and can stretch and retract in the lower cavity opening (251), and the stop iron (232) is opposite to the upper cavity opening (252) and can stretch and retract in the upper cavity opening (252).
6. A miniaturized switchgear interlock according to claim 1, characterized in that: the elastic reset piece (24) is a reset torsion spring connected between the interlocking shaft and the guide rail.
7. A miniaturized switchgear interlock according to claim 1, characterized in that: be equipped with downward convex hem (311) on the slide, lock switch (4) are the electromagnetic lock of fixing on cabinet body (1) and being located hem (311) below, the electromagnetic lock includes body (41), locates in body (41) and can relative body (41) fore-and-aft telescopic movement's iron core (42), and according to the flexible electromagnetic component of electrified condition control iron core (42).
8. A miniaturized switchgear interlock according to claim 1, characterized in that: the slide plate is also provided with a handle (312) extending into the grounding switch operation hole (11).
9. A miniaturized switchgear interlock according to claim 1, characterized in that: the center distance between the center line of the first crank arm (51) hinged with the degradation mechanism and the axis of the interlocking shaft (22) is as follows: 8-18mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223470769.9U CN219303516U (en) | 2022-12-23 | 2022-12-23 | Miniaturized cubical switchboard interlock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223470769.9U CN219303516U (en) | 2022-12-23 | 2022-12-23 | Miniaturized cubical switchboard interlock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219303516U true CN219303516U (en) | 2023-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223470769.9U Active CN219303516U (en) | 2022-12-23 | 2022-12-23 | Miniaturized cubical switchboard interlock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219303516U (en) |
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2022
- 2022-12-23 CN CN202223470769.9U patent/CN219303516U/en active Active
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