CN215911822U - Interlocking device for preventing breaker from closing in position short of working or testing - Google Patents
Interlocking device for preventing breaker from closing in position short of working or testing Download PDFInfo
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- CN215911822U CN215911822U CN202121792076.4U CN202121792076U CN215911822U CN 215911822 U CN215911822 U CN 215911822U CN 202121792076 U CN202121792076 U CN 202121792076U CN 215911822 U CN215911822 U CN 215911822U
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- circuit breaker
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Abstract
The utility model relates to the technical field of electrical equipment, in particular to an interlocking device for preventing a breaker from being switched on before reaching a working or testing position, which comprises a blocking block, a moving assembly, a connecting plate and an interlocking plate, wherein a limiting block is arranged on the peripheral surface of an energy storage maintaining shaft, the moving assembly is arranged on an installation plate, the moving assembly can move towards the energy storage maintaining shaft, one side of the moving assembly, which faces the energy storage maintaining shaft, is matched with the blocking block, the connecting plate is hinged with one side of the moving assembly, which is far away from the energy storage maintaining shaft, the other end of the connecting plate is hinged with the interlocking plate, the interlocking plate is rotatably arranged at the lower end of the breaker, and the chassis vehicle moves to drive the interlocking plate to rotate. The chassis vehicle is used for driving the interlocking plate to rotate when moving, so that the connecting plate hinged to the interlocking plate is jacked up, the moving assembly is further pushed to move towards the energy storage retaining shaft and to be matched with the blocking block, and the circuit breaker is prevented from being switched on.
Description
Technical Field
The utility model relates to the technical field of electrical equipment, in particular to an interlocking device for preventing a breaker from being switched on when the breaker does not reach a working or test position.
Background
In the prior art, the opening and closing of the circuit breaker are realized by an operating mechanism. When the chassis vehicle of the circuit breaker is completely pushed into the bottom of the circuit breaker to the bottom, the chassis vehicle reaches the test position of the circuit breaker; when the chassis is positioned at the outermost end of the circuit breaker, the chassis reaches the working position of the circuit breaker, and the circuit breaker is allowed to be operated at the two positions; however, since there is a great risk in performing the closing operation of the circuit breaker while the chassis moves from the operating position to the test position, it is necessary to prevent the chassis from performing the closing operation of the circuit breaker in the non-operating position.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: the interlocking device is simple in structure and capable of effectively preventing the breaker from being switched on when the breaker does not reach a working or testing position.
In order to solve the technical problems, the utility model adopts the technical scheme that: an interlocking device for preventing a circuit breaker from being switched on before working or testing positions, the circuit breaker comprises a switching-on device, a mounting plate and a chassis, the switching-on device comprises an energy storage retaining shaft which rotates to realize switching-on operation, the energy storage retaining shaft is arranged on the mounting plate, the chassis vehicle is movably arranged at the lower end of the mounting plate and comprises a stop block, a moving assembly, a connecting plate and an interlocking plate, the limiting block is arranged on the circumferential surface of the energy storage retaining shaft, the moving assembly is arranged on the mounting plate and can move towards the energy storage retaining shaft, the side of the moving component facing the energy storage retaining shaft is matched with the blocking block, the connecting plate is hinged with the side of the moving component far away from the energy storage retaining shaft, the other end of the connecting plate is hinged to an interlocking plate, the interlocking plate is rotatably arranged at the lower end of the circuit breaker, and the chassis moves to drive the interlocking plate to rotate.
Further, the moving assembly comprises a first fixed nail and a first moving plate, the first moving plate is provided with a first moving hole with the length direction facing the energy storage maintaining shaft, and the first fixed nail penetrates through the first moving hole and is locked on the mounting plate.
Further, the moving assembly further comprises a second fixed nail and a second moving plate, the second moving plate is arranged below the first moving plate, and the second moving plate can move towards the first moving plate; one end of the connecting plate is hinged with the second moving plate; the second movable plate is provided with a second movable hole with the length direction facing the first movable plate, and the second fixing nail penetrates through the second movable hole and is locked on the mounting plate.
Furthermore, a limiting structure is arranged on one side, facing the energy storage maintaining shaft, of the first moving plate, the limiting structure protrudes out of the plane of the first moving plate, and the blocking block abuts against one side of the limiting structure.
Furthermore, the number of the first moving holes and the number of the first fixing nails are two, and two pairs of the first moving holes and two pairs of the first fixing nails are correspondingly arranged on two sides of the first moving plate respectively; the second moving holes and the second fixing nails are respectively provided with two pairs of the second moving holes and the second fixing nails which are respectively and correspondingly arranged at the upper side and the lower side of the second moving plate.
Further, a first abutting end horizontally protrudes from one side of the first moving plate, which faces the second moving plate; and a second abutting end horizontally protrudes from one side of the second moving plate, which faces the first moving plate.
Further, the moving assembly further comprises a tension spring, one end of the tension spring is connected with one side, close to the energy storage retaining shaft, of the first moving plate, and the other end of the tension spring is connected with the first fixing nail.
Further, a pulling handle is further arranged on the chassis vehicle.
The utility model has the beneficial effects that: the chassis vehicle is used for driving the interlocking plate to rotate when moving, so that the connecting plate hinged to the interlocking plate is jacked up, the moving assembly is further pushed to move towards the energy storage retaining shaft and to be matched with the blocking block, and the circuit breaker is prevented from being switched on.
Drawings
Fig. 1 is a schematic view of a partial structure of a circuit breaker according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a moving assembly of an interlock device for preventing a circuit breaker from being switched on before reaching a working or test position in cooperation with a switching-on device according to an embodiment of the present invention;
FIG. 3 is an enlarged view of FIG. 2A;
fig. 4 is a schematic structural diagram of an interlocking plate of an interlocking device for preventing a circuit breaker from being switched on before reaching a working or testing position when a chassis is in a testing position according to an embodiment of the present invention;
fig. 5 is a schematic diagram illustrating the interlocking plate of the interlocking device for preventing the circuit breaker from being switched on before reaching the working or testing position, and the interlocking plate is matched with the connecting plate and the second moving plate when the chassis truck is in the testing position according to the embodiment of the present invention;
fig. 6 is a schematic structural diagram of an interlocking plate of an interlocking device for preventing a circuit breaker from being switched on before reaching an operating or testing position when a chassis is in a non-operating position or a testing position according to an embodiment of the present invention;
fig. 7 is a schematic diagram illustrating the interlocking plate of the interlocking device for preventing the circuit breaker from being switched on before reaching the working or testing position, and the interlocking plate is matched with the connecting plate and the second moving plate when the chassis truck is in the non-working position or the testing position according to the embodiment of the utility model;
fig. 8 is a schematic structural diagram of an interlocking plate of an interlocking device for preventing a circuit breaker from being switched on when the circuit breaker does not reach a working or testing position when a chassis is in the working position according to an embodiment of the present invention;
fig. 9 is a schematic view illustrating the interlocking plate of the interlocking device for preventing the circuit breaker from being switched on before reaching the working or testing position, and the connecting plate and the second moving plate are matched when the chassis truck is in the working position according to the embodiment of the present invention;
fig. 10 is a schematic diagram of the movable assembly of the interlock apparatus for preventing the circuit breaker from being switched on before reaching the working or testing position and the switching-on apparatus when the chassis truck is in the working or testing position according to the embodiment of the present invention;
fig. 11 is a schematic diagram of the movable assembly of the interlock apparatus for preventing the circuit breaker from being closed before reaching the working or testing position and the closing apparatus when the chassis truck is in the non-working position or the testing position according to the embodiment of the present invention.
Description of reference numerals:
1. a switching-on device; 11. an energy storage holding shaft;
2. mounting a plate;
3. a chassis truck; 31. pulling the handle;
4. a blocking block;
5. a moving assembly;
51. a first moving plate; 511. a first staple; 512. a first moving hole; 513. a limiting structure; 514. a first abutting end;
52. a second moving plate; 521. a second staple; 522. a second moving hole; 523. a second abutting end;
6. connecting plates; 7. an interlock plate; 8. a tension spring.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1 to 11, an interlock apparatus for preventing a circuit breaker from being switched on before reaching a working or testing position includes a switching-on apparatus 1, a mounting plate 2 and a chassis 3, the switching-on apparatus 1 includes an energy storage maintaining shaft 11, the energy storage maintaining shaft 11 rotates to realize a switching-on operation, the energy storage maintaining shaft 11 is disposed on the mounting plate 2, the chassis 3 is movably disposed at a lower end of the mounting plate 2 and includes a blocking block 4, a moving assembly 5, a connecting plate 6 and an interlock plate 7, the blocking block is disposed on a circumferential surface of the energy storage maintaining shaft 11, the moving assembly 5 is disposed on the mounting plate 2, the moving assembly 5 is movable toward the energy storage maintaining shaft 11, one side of the moving assembly 5 facing the energy storage maintaining shaft 11 is matched with the blocking block 4, the connecting plate 6 is hinged to one side of the moving assembly 5 away from the energy storage maintaining shaft 11, the other end of the connecting plate 6 is hinged to the interlock plate 7, interlocking plate 7 rotationally sets up in the circuit breaker lower extreme, chassis 3 removes and drives interlocking plate 7 and rotate.
The working principle of the utility model is as follows: when the chassis 3 needs to be pushed to pass through a non-working or testing position, the chassis 3 moves, the interlocking plate 7 linked with the chassis 3 rotates towards the mounting plate 2, the connecting plate 6 hinged to the interlocking plate 7 jacks towards the energy storage retaining shaft 11, the moving assembly 5 is pushed to be matched with the blocking block 4 on the energy storage retaining shaft 11, and at the moment, the energy storage retaining shaft 11 cannot rotate and cannot perform switching-on operation.
In the arrangement of the chassis 3 in interlocking engagement with the interlock plate 7, this can be achieved by a mechanical structure or a controller. Taking a mechanical structure as an example, the change of the connection between the chassis 3 and the interlocking plate 7 during the moving process is realized, specifically, the chassis 3 is provided with a protrusion in the moving direction, and when the chassis 3 moves and the protrusion moves to the interlocking plate 7, the protrusion can jack the interlocking plate 7 up to rotate.
From the above description, the beneficial effects of the present invention are: the chassis 3 is used for driving the interlocking plate 7 to rotate when moving, so that the connecting plate 6 hinged to the interlocking plate 7 is jacked up, the moving assembly 5 is further pushed to move towards the energy storage retaining shaft 11 and to be matched with the blocking block 4, and the circuit breaker is prevented from being switched on.
Further, the moving assembly 5 includes a first fixed nail 511 and a first moving plate 51, the first moving plate 51 is provided with a first moving hole 512 facing the energy storage holding shaft 11 in the length direction, and the first fixed nail 511 passes through the first moving hole 512 and is locked on the mounting plate 2.
As can be seen from the above description, the first moving plate 51 moves on the mounting plate 2 for a certain distance through the first moving hole 512 and the first fixing nail 511 on the first moving plate 51.
Further, the moving assembly 5 further includes a second fixed nail 521 and a second moving plate 52, the second moving plate 52 is disposed below the first moving plate 51, and the second moving plate 52 is movable toward the first moving plate 51; one end of the connecting plate 6 is hinged with the second moving plate 52; the second moving plate 52 is provided with a second moving hole 522 whose length direction faces the first moving plate 51, and the second fixing pin 521 passes through the second moving hole 522 and is locked on the mounting plate 2.
As can be seen from the above description, by providing the hinge joint between the second moving plate 52 and the connecting plate 6, when the connecting plate 6 is jacked up, the second moving plate 52 is driven to move, and the second moving plate 52 moves to further push the first moving plate 51, so as to reduce the moving stroke of the first moving plate 51 and ensure stable operation; the second moving plate 52 moves on the mounting plate 2 for a certain distance through the second moving hole 522 of the second moving plate 52 and the second fixing pin 521.
Furthermore, a limiting structure 513 is arranged on one side of the first moving plate 51 facing the energy storage holding shaft 11, the limiting structure 513 protrudes out of the plane of the first moving plate 51, and the blocking block 4 abuts against one side of the limiting structure 513.
As can be seen from the above description, the limit structure 513 protruding out of the plane of the first moving plate 51 is simple, so that when the first moving plate 51 moves to the position of engaging with the stop block 4 of the energy storage maintaining shaft 11, one side of the stop block 4 is blocked by the limit structure 513 and cannot rotate any further
Furthermore, two first moving holes 512 and two first fixing nails 511 are respectively arranged, and two pairs of the first moving holes 512 and the two pairs of the first fixing nails 511 are respectively and correspondingly arranged on two sides of the first moving plate 51; two second moving holes 522 and two second fixing nails 521 are respectively provided, and two pairs of the second moving holes 522 and the second fixing nails 521 are respectively and correspondingly provided on the upper and lower sides of the second moving plate 52.
As can be seen from the above description, by providing the two first moving holes 512 and the first fixing nails 511, the stability of the first moving plate 51 during movement is ensured; by providing the two second moving holes 522 and the second fixing pins 521, it is ensured that the second moving plate 52 can be accurately moved toward the first moving plate 51.
Further, a first abutting end 514 horizontally protrudes from one side of the first moving plate 51, which faces the second moving plate 52; the second moving plate 52 horizontally protrudes toward one side of the first moving plate 51 to form a second abutting end 523.
As can be seen from the above description, by providing the first abutting end 514 protruding from the first moving plate 51 and the second abutting end 523 protruding from the second moving plate 52, the second moving plate 52 can more accurately and quickly transmit the pushing force through the first abutting end 514 and the second abutting end 523 contacting each other when pushing the first moving plate 51.
Further, the moving assembly 5 further comprises a tension spring 8, one end of the tension spring 8 is connected to one side of the first moving plate 51 close to the energy storage maintaining shaft 11, and the other end of the tension spring 8 is connected to the first fixing nail 511.
As can be seen from the above description, when the second moving plate 52 pushes the first moving plate 51 to move, the tension spring 8 is charged with energy; after the second moving plate 52 no longer provides the pushing force, the first moving plate 51 is reset by the tension spring 8 for the next operation.
Further, a pulling handle 31 is also arranged on the chassis 3.
As can be seen from the above description, the pulling handle 31 is provided to facilitate the user to push the chassis 3.
Referring to fig. 1 to 11, a first embodiment of the present invention is:
as shown in fig. 1, the interlocking device for preventing the circuit breaker from closing before reaching the working or testing position in this embodiment includes a closing device 1, a mounting plate 2 and a chassis 3, the closing device 1 includes an energy storage retaining shaft 11, the energy storage retaining shaft 11 rotates to realize the closing operation, the energy storage retaining shaft 11 is disposed on the mounting plate 2, the chassis 3 is movably disposed at the lower end of the mounting plate 2 and includes a blocking block 4, a moving assembly 5, a connecting plate 6 and an interlocking plate 7, the blocking block is disposed on the circumferential surface of the energy storage retaining shaft 11, the moving assembly 5 is disposed on the mounting plate 2, the moving assembly 5 is movable toward the energy storage retaining shaft 11, the moving assembly 5 is matched with the blocking block 4 toward the energy storage retaining shaft 11, the connecting plate 6 is hinged to the moving assembly 5 away from the energy storage retaining shaft 11, the other end of the connecting plate 6 is hinged to the interlocking plate 7, interlocking plate 7 rotationally sets up in the circuit breaker lower extreme, chassis 3 removes and drives interlocking plate 7 and rotate.
As shown in fig. 1 to 3, the moving assembly 5 includes a first fixed pin 511 and a first moving plate 51, the first moving plate 51 is provided with a first moving hole 512 facing the energy storage holding shaft 11 in the length direction, and the first fixed pin 511 passes through the first moving hole 512 and is locked on the mounting plate 2.
As shown in fig. 1, 10 and 11, the moving assembly 5 further includes a second fixed pin 521 and a second moving plate 52, the second moving plate 52 is disposed below the first moving plate 51, and the second moving plate 52 is movable toward the first moving plate 51; one end of the connecting plate 6 is hinged with the second moving plate 52; the second moving plate 52 is provided with a second moving hole 522 whose length direction faces the first moving plate 51, and the second fixing pin 521 passes through the second moving hole 522 and is locked on the mounting plate 2.
As shown in fig. 1 to 3, a limiting structure 513 is disposed on one side of the first moving plate 51 facing the energy storage holding shaft 11, the limiting structure 513 protrudes out of the plane of the first moving plate 51, and the stop block 4 abuts against one side of the limiting structure 513.
As shown in fig. 1, 2, 3, 10 and 11, two first moving holes 512 and two first fixing nails 511 are respectively provided, and two pairs of the first moving holes 512 and the two pairs of the first fixing nails 511 are respectively and correspondingly provided on two sides of the first moving plate 51; two second moving holes 522 and two second fixing nails 521 are respectively provided, and two pairs of the second moving holes 522 and the second fixing nails 521 are respectively and correspondingly provided on the upper and lower sides of the second moving plate 52. Specifically, the first moving hole 512 and the second moving block are both waist holes.
As shown in fig. 1, a first abutting end 514 horizontally protrudes from one side of the first moving plate 51, which faces the second moving plate 52; the second moving plate 52 horizontally protrudes toward one side of the first moving plate 51 to form a second abutting end 523.
As shown in fig. 1 to 3, the moving assembly 5 further includes a tension spring 8, one end of the tension spring 8 is connected to the first moving plate 51 near the energy storage maintaining shaft 11, and the other end is connected to the first fixing nail 511.
As shown in fig. 1 to 3, one side of the first moving plate 51 extends toward the energy storage holding shaft 11, one of the first moving holes 512 is disposed at a side of the first moving plate 51 having an extension, and one end of the tension spring 8 is connected to a terminal of the first moving plate 51 extending from the side. Specifically, the first moving plate 51 is L-shaped.
As shown in fig. 1, the chassis 3 is further provided with a pull handle 31.
In summary, the interlocking device for preventing the circuit breaker from being switched on before the working or testing position is provided by the utility model, the chassis vehicle is used for driving the interlocking plate to rotate when moving, so that the connecting plate hinged with the interlocking plate is jacked up, and the moving assembly is further pushed to move towards the energy storage holding shaft and to be matched with the blocking block, so that the circuit breaker is prevented from being switched on; the first moving plate is moved by arranging a first moving hole and a first fixing nail; the working stroke of the first moving plate is reduced by arranging the second moving plate, so that the moving accuracy is ensured; the energy storage retaining shaft is prevented from rotating through the matching of the limiting structure protruding out of the plane of the first moving plate and the blocking block; the two first moving holes and the two first fixing nails as well as the two second moving blocks and the two second fixing nails are arranged and are respectively used for ensuring the stable movement of the first moving plate and the accurate movement of the second moving plate; the first abutting end and the second abutting end are arranged, so that the second moving plate can push the first moving plate; the tension spring is arranged, so that the first movable plate can be reset in time after moving; through setting up the pulling handle, the person of facilitating the use promotes the chassis car.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (8)
1. An interlocking device for preventing a circuit breaker from being switched on when the circuit breaker does not reach a working position or a test position, wherein the circuit breaker comprises a switching-on device, a mounting plate and a chassis, the switching-on device comprises an energy storage retaining shaft, the energy storage retaining shaft rotates to realize switching-on operation, the energy storage retaining shaft is arranged on the mounting plate, the chassis is movably arranged at the lower end of the mounting plate, the interlocking device is characterized by comprising a blocking block, a moving assembly, a connecting plate and an interlocking plate, the blocking block is arranged on the peripheral surface of the energy storage retaining shaft, the moving assembly is arranged on the mounting plate and can move towards the energy storage retaining shaft, the moving assembly is matched with the blocking block towards one side of the energy storage retaining shaft, the connecting plate is hinged with one side of the moving assembly, which is far away from the energy storage retaining shaft, the other end of the connecting plate is hinged with the interlocking plate, and the interlocking plate is rotatably arranged at the lower end of the circuit breaker, the chassis vehicle moves to drive the interlocking plate to rotate.
2. The interlock apparatus for preventing a circuit breaker from being closed before reaching an operating or testing position according to claim 1, wherein the moving assembly comprises a first fixing pin and a first moving plate, the first moving plate is provided with a first moving hole with a length direction facing the energy storage maintaining shaft, and the first fixing pin passes through the first moving hole and is locked on the mounting plate.
3. The interlock device for preventing the circuit breaker from being switched on when the circuit breaker does not reach the working or testing position according to claim 2, wherein the moving assembly further comprises a second fixed pin and a second moving plate, the second moving plate is arranged below the first moving plate, and the second moving plate is movable towards the first moving plate; one end of the connecting plate is hinged with the second moving plate; the second movable plate is provided with a second movable hole with the length direction facing the first movable plate, and the second fixing nail penetrates through the second movable hole and is locked on the mounting plate.
4. The interlocking device for preventing the circuit breaker from being switched on before reaching the working or testing position as claimed in claim 2, wherein a limiting structure is arranged on one side of the first moving plate facing the energy storage maintaining shaft, the limiting structure protrudes out of the plane of the first moving plate, and the blocking block abuts against one side of the limiting structure.
5. The interlocking device for preventing the circuit breaker from being switched on before reaching the working or testing position as claimed in claim 3, wherein two first moving holes and two first fixing nails are respectively arranged, and two pairs of the first moving holes and the first fixing nails are respectively correspondingly arranged at two sides of the first moving plate; the second moving holes and the second fixing nails are respectively provided with two pairs of the second moving holes and the second fixing nails which are respectively and correspondingly arranged at the upper side and the lower side of the second moving plate.
6. The interlocking device for preventing the circuit breaker from being switched on when the circuit breaker does not reach the working or testing position as claimed in claim 3, wherein a first abutting end horizontally protrudes from one side of the first moving plate, which faces the second moving plate; and a second abutting end horizontally protrudes from one side of the second moving plate, which faces the first moving plate.
7. The interlocking device for preventing the circuit breaker from being switched on when the circuit breaker does not reach the working or test position as claimed in claim 1, wherein the moving assembly further comprises a tension spring, one end of the tension spring is connected with one side of the first moving plate close to the energy storage maintaining shaft, and the other end of the tension spring is connected with the first fixing nail.
8. The interlock device for preventing a circuit breaker from closing in a non-working or testing position according to claim 1, wherein a pulling handle is further provided on the chassis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121792076.4U CN215911822U (en) | 2021-08-03 | 2021-08-03 | Interlocking device for preventing breaker from closing in position short of working or testing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121792076.4U CN215911822U (en) | 2021-08-03 | 2021-08-03 | Interlocking device for preventing breaker from closing in position short of working or testing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215911822U true CN215911822U (en) | 2022-02-25 |
Family
ID=80290475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121792076.4U Active CN215911822U (en) | 2021-08-03 | 2021-08-03 | Interlocking device for preventing breaker from closing in position short of working or testing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215911822U (en) |
-
2021
- 2021-08-03 CN CN202121792076.4U patent/CN215911822U/en active Active
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