Breaker two-in-one mechanical interlocking device and switch cabinet

Abstract

The utility model discloses a circuit breaker two-in-one mechanical interlocking device which comprises a first mechanical lock and a second mechanical lock, the first mechanical lock comprises a first mounting plate, the first mounting plate is provided with a first closing assembly, a first locking assembly and a first locking linkage plate, and the second mechanical lock comprises a second mounting plate. The second mounting plate is provided with a second closing assembly, a second locking assembly and a second locking linkage plate. One circuit breaker is switched on to drive the corresponding switching-on assembly to drive the opposite-side locking linkage plate to slide so as to drive the opposite-side locking assembly to rotate, so that the other circuit breaker enters a switching-off locking state, and the switching-on operation of the circuit breaker is prevented; the design is ingenious, the structure is compact, and the occupied space is small. Meanwhile, the circuit breaker two-in-one mechanical interlocking device is arranged in the switch cabinet, the position of the circuit breaker does not need to be moved during operation, an incoming line spare power automatic switching scheme adopted by the circuit breaker is not influenced, and the stability and the reliability of the system are ensured.

Description

Technical Field

[0001] The present application relates to the technical field of circuit breakers, and in particular to a two-in-one mechanical interlocking device for circuit breakers. Background Art

[0002] When dual power supply is used, it is necessary to ensure that only one of the dual power supply incoming line switches can be closed at any time. When one of the power supplies is powered, the other power supply cannot be closed to supply power; when both power supplies are disconnected, any incoming line switch can be selected to be closed, and after closing, the other incoming line switch cannot be closed again. Currently, most of the switches on the market that implement this function use key locks to implement this function. There is a lack of real mechanical automatic interlocking function between the two switches, and manual operation of the interlocking function is required on site. At the same time, the automatic standby self-throwing function cannot be realized. Utility Model Content

[0003] In view of this, the present application provides a two-in-one mechanical interlocking device for a circuit breaker, wherein one of the circuit breakers drives the corresponding closing assembly to drive the opposite locking linkage plate to slide to drive the opposite locking assembly to rotate, thereby realizing that the other circuit breaker enters the opening locking state to prevent the circuit breaker from performing the closing operation, and specifically adopts the following technical solutions:

[0004] A two-in-one mechanical interlocking device for a circuit breaker comprises a first mechanical lock and a second mechanical lock, wherein the first mechanical lock comprises a first mounting plate, on which a first closing component, a first locking component and a first locking linkage plate are arranged, and the second mechanical lock comprises a second mounting plate, on which a second closing component, a second locking component and a second locking linkage plate are arranged;

[0005] When the circuit breaker 1 is closed, the locking linkage plate 2 is driven by the closing assembly 1 to slide upward to drive the locking assembly 2 to rotate, so that the circuit breaker 2 is kept in the open state;

[0006] When the circuit breaker 2 is closed, the locking linkage plate 1 is driven by the closing assembly 2 to slide upward to drive the locking assembly 1 to rotate, so that the circuit breaker 1 remains in the open state;

[0007] The mechanical lock 1 and the mechanical lock 2 are arranged as a whole in a mirror image relative to each other, and the locking linkage plate 1 and the locking linkage plate 2 are both arranged inside the mechanical lock 1 and the mechanical lock 2, and are arranged in parallel on the left and right sides.

[0008] Preferably, the closing assembly 1 and the closing assembly 2 are both composed of a closing plate and a closing linkage plate, and the rotation of the closing plate drives the closing linkage plate to slide on the outer side of the corresponding mounting plate.

[0009] Further preferably, a connecting piece 1 is fixedly provided on the closing linkage plate, and the connecting piece 1 can slide back and forth in the sliding groove of the closing plate.

[0010] Preferably, the closing linkage plate is linked with the opposite locking linkage plate through a connecting piece three.

[0011] Preferably, the locking assembly 1 and the locking assembly 2 are both composed of a locking plate, one end of the locking plate is rotatably connected to the mounting plate on the same side, and the other end of the locking plate is slidably connected to the locking linkage plate; the corresponding locking linkage plate slides upward to drive the corresponding locking plate to push the circuit breaker's opening plate downward, so that the corresponding circuit breaker enters an opening locking state to prevent the circuit breaker from performing a closing operation.

[0012] Further preferably, a connecting member 2 is fixedly provided on the locking linkage plate 1 and the locking linkage plate 2, and the connecting member 2 can slide back and forth in the sliding groove of the locking plate; when the corresponding locking linkage plate slides upward, the position of the connecting member 2 in the corresponding locking plate in the sliding groove changes to realize the rotation of the locking plate.

[0013] Preferably, a reset mechanism 1 is provided on both the mounting plate 1 and the mounting plate 2, and the two reset mechanisms 1 are respectively used for resetting the closing assembly 1 and the closing assembly 2 when they are in a disconnected state. The setting of the reset mechanism 1 enables the corresponding closing plate to automatically slide downward and reset after the thrust of the circuit breaker on the closing plate is released.

[0014] To facilitate the installation of the reset mechanism 1 on the mounting plate, the rotating ends of the closing assembly 1 and the closing assembly 2 are connected to the mounting plate through a connecting plate; wherein a cavity capable of accommodating the reset mechanism 1 and facilitating the rotation of the rotating end of the closing plate is provided between the connecting plate and the mounting plate.

[0015] Preferably, a reset mechanism 2 is provided on both the mounting plate 1 and the mounting plate 2. The two reset mechanisms 2 are respectively used for resetting the vertical movement of the locking linkage plate 1 and the locking linkage plate 2. One end of the reset mechanism 2 is arranged on the corresponding mounting plate, and the other end is arranged on the corresponding locking linkage plate.

[0016] The present application also provides a switch cabinet, which is provided with a two-in-one mechanical interlocking device for a circuit breaker. With this design, the operator does not need to move the position of the circuit breaker during operation, thereby simplifying the operation process. At the same time, this design will not affect the circuit breaker's use of the incoming line standby automatic switching scheme, ensuring the stability and reliability of the system. This switch cabinet has the advantages of high efficiency, convenience, safety, etc., and can be widely used in various occasions requiring circuit breaker control and protection.

[0017] Beneficial effects of this application:

[0018] (1) Through the linkage between the two mechanical locks, when one circuit breaker is closed, the other circuit breaker can enter the open lock state through the mechanical interlocking device to prevent the circuit breaker from being closed, thereby preventing single point failure and increasing the reliability and safety of the equipment;

[0019] (2) The two mechanical locks are arranged in mirror images, which makes the mechanical interlocking device compact and reduces the difficulty of setting the circuit breaker, thereby reducing production costs and manufacturing difficulty;

[0020] (3) By closing one of the circuit breakers, the corresponding closing assembly drives the opposite locking linkage plate to slide, thereby driving the opposite locking assembly to rotate, so that the other circuit breaker enters the open locking state to prevent the circuit breaker from being closed; the design is ingenious, compact and occupies little space. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an exploded view of the mechanical interlocking device;

[0022] Figure 2 This is a left view of the internal part of the circuit breaker-switch cabinet;

[0023] Figure 3 This is the right view of the internal part of the circuit breaker 2 switch cabinet.

[0024] In the figure: 1. Mechanical lock 1, 11. Mounting plate 1, 12. Closing assembly 1, 13. Locking assembly 1, 14. Locking linkage plate 1, 2. Mechanical lock 2, 21. Mounting plate 2, 22. Closing assembly 2, 23. Locking assembly 2, 24. Locking linkage plate 2, 3. Circuit breaker 1, 4. Circuit breaker 2, 5. Connector 1, 6. Connector 2, 7. Connector 3, 8. Reset mechanism 1, 9. Reset mechanism 2, 10. Connecting plate, 20. Closing plate, 30. Closing linkage plate, 40. Locking plate. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described in the present application are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0026] It should be noted that all directional indications in the embodiments of the present application, such as first, second, up, down, left, right, front, back... are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0027] Example 1

[0028] Combination Figure 1 to Figure 3 , the two-in-one mechanical interlocking device of the circuit breaker described in the present application is further described, including a mechanical lock 1 and a mechanical lock 2, the mechanical lock 1 includes a mounting plate 11, the mounting plate 11 is provided with a closing component 12, a locking component 13 and a locking linkage plate 14, the mechanical lock 2 includes a mounting plate 21, the mounting plate 21 is provided with a closing component 22, a locking component 23 and a locking linkage plate 24;

[0029] When the circuit breaker 1 3 is closed, the locking linkage plate 2 24 is driven by the closing assembly 12 to slide upward to drive the locking assembly 2 23 to rotate, so that the circuit breaker 2 4 remains in the open state;

[0030] When the circuit breaker 2 4 is closed, the locking linkage plate 1 14 is driven by the closing assembly 2 22 to slide upward to drive the locking assembly 1 13 to rotate, so that the circuit breaker 1 3 is kept in the open state;

[0031] The mechanical lock 1 and the mechanical lock 2 are arranged as a whole in a mirror image relative to each other, and the locking linkage plate 1 14 and the locking linkage plate 2 24 are both arranged inside the mechanical lock 1 and the mechanical lock 2, and are arranged in parallel on the left and right.

[0032] The closing assembly 12 and the closing assembly 22 are both composed of a closing plate 20 and a closing linkage plate 30. The rotation of the closing plate 20 drives the closing linkage plate 30 to slide on the outside of the corresponding mounting plate. Specifically, a connecting piece 5 is fixedly provided on the closing linkage plate 30, and the connecting piece 5 can slide back and forth in the sliding groove of the closing plate 20. The connecting piece 5 can be a pin or a bolt.

[0033] It should be noted that the rotation of the closing plate 20 is driven by the closing of the circuit breaker.

[0034] The closing linkage plate 30 is linked with the opposite locking linkage plate through the connecting member 3 7. The connecting member 3 7 may be a pin or a bolt.

[0035] The locking assembly 1 13 and the locking assembly 2 23 are both composed of a locking plate 40, one end of the locking plate 40 is rotatably connected to the mounting plate on the same side, and the other end of the locking plate 40 is slidably connected to the locking linkage plate. The corresponding locking linkage plate slides upward to drive the corresponding locking plate 40 to push the opening plate of the circuit breaker downward, so that the corresponding circuit breaker enters the opening locking state to prevent the circuit breaker from performing a closing operation.

[0036] Specifically, the first locking linkage plate 14 and the second locking linkage plate 24 are both fixedly provided with a second connecting member 6, and the second connecting member 6 can slide back and forth in the slide groove of the locking plate 40; when the locking linkage plate slides upward, the position of the second connecting member 6 in the corresponding locking plate 40 changes in the slide groove to realize the rotation of the locking plate 40. The second connecting member 6 can be a pin or a bolt.

[0037] The mounting plate 11 and the mounting plate 21 are both provided with a reset mechanism 18, which are used for resetting the closing assembly 12 and the closing assembly 22 when they are in the disconnected state. The setting of the reset mechanism 18 enables the corresponding closing plate 20 to automatically slide downward and reset after the thrust of the circuit breaker on the closing plate 20 is released. The reset mechanism 18 is a spring, one end of which is arranged on the corresponding mounting plate, and the other end of which is arranged on the corresponding closing assembly. When one of the circuit breakers is opened, after the thrust of the corresponding closing assembly is released, the closing plate 20 and the locking plate 40 are reset under the action of the spring, and the circuit breaker on the opposite side is released from the opening locking state before the closing operation can be performed.

[0038] It should be noted that, in order to facilitate the installation of the reset mechanism 8 on the mounting plate, the rotating ends of the closing component 12 and the closing component 22 are connected to the mounting plate through a connecting plate 10; wherein, a cavity capable of accommodating the reset mechanism 8 and facilitating the rotation of the rotating end of the closing plate 20 is provided between the connecting plate 10 and the mounting plate.

[0039] The mounting plate 1 11 and the mounting plate 2 21 are both provided with a reset mechanism 2 9, and the two reset mechanisms 2 9 are respectively used for resetting the vertical movement of the locking linkage plate 1 14 and the locking linkage plate 2 24. The reset mechanism 2 9 is a spring, one end of which is arranged on the corresponding mounting plate, and the other end of which is arranged on the corresponding locking linkage plate. When the closing assembly is reset, the closing linkage plate 30 drives the opposite locking linkage plate to slide downward, so that the circuit breaker on the opposite side is released from the opening locking state before the closing operation can be performed.

[0040] It should be noted that, in order to facilitate the sliding of the locking linkage plate 1 14 , the locking linkage plate 2 24 and the closing linkage plate 30 , at least one guide member is provided on each of the mounting plate 1 11 and the mounting plate 2 21 .

[0041] Working principle:

[0042] like Figure 2 As shown, when the circuit breaker 13 is closed, the closing indicator plate of the circuit breaker 13 drives the closing plate 20 of the closing assembly 12 to rotate clockwise, so as to drive the corresponding closing linkage plate 30 to slide upward, thereby linking the locking linkage plate 24 to slide upward, as shown in FIG. Figure 3 As shown, the locking assembly 23 can rotate counterclockwise, thereby pushing the opening plate of the circuit breaker 2 4 downward, so that the circuit breaker 2 4 enters the opening locking state to prevent the circuit breaker 2 4 from performing the closing operation;

[0043] like Figure 3 As shown, when the circuit breaker 2 4 is closed, the closing indicator plate of the circuit breaker 2 4 drives the closing plate 20 of the closing assembly 2 2 to rotate counterclockwise to drive the corresponding closing linkage plate 30 to slide upward, thereby linking the locking linkage plate 1 14 to slide upward, as shown in FIG. Figure 2 As shown, the locking assembly 13 can rotate clockwise, thereby pushing the opening plate of the circuit breaker 3 downward, so that the circuit breaker 3 enters the opening locking state to prevent the circuit breaker 3 from performing the closing operation.

[0044] Example 2

[0045] The present application also provides a switch cabinet, including the above-mentioned two-in-one mechanical interlocking device for circuit breakers, wherein the two-in-one mechanical interlocking device for circuit breakers is arranged on the switch cabinet body. In this way, when one circuit breaker is closed, the other circuit breaker can enter an open and locked state through the mechanical interlocking device to prevent the circuit breaker from closing, prevent misoperation, ensure equipment safety, avoid unintentional triggering of the circuit breaker, and improve equipment stability.

Claims

1. Two-in-one mechanical interlocking device for circuit breaker, characterized by: It comprises a mechanical lock 1 and a mechanical lock 2, wherein the mechanical lock 1 comprises a mounting plate 1, on which a closing component 1, a locking component 1 and a locking linkage plate 1 are arranged, and the mechanical lock 2 comprises a mounting plate 2, on which a closing component 2, a locking component 2 and a locking linkage plate 2 are arranged; When the circuit breaker 1 is closed, the locking linkage plate 2 is driven by the closing assembly 1 to slide upward to drive the locking assembly 2 to rotate, so that the circuit breaker 2 is kept in the open state; When the circuit breaker 2 is closed, the locking linkage plate 1 is driven by the closing assembly 2 to slide upward to drive the locking assembly 1 to rotate, so that the circuit breaker 1 remains in the open state; The mechanical lock 1 and the mechanical lock 2 are arranged as a whole in a mirror image relative to each other, and the locking linkage plate 1 and the locking linkage plate 2 are both arranged inside the mechanical lock 1 and the mechanical lock 2, and are arranged in parallel on the left and right sides.

2. The circuit breaker two-in-one mechanical interlocking device according to claim 1, characterized in that: The closing assembly 1 and the closing assembly 2 are both composed of a closing plate and a closing linkage plate, and the closing linkage plate is driven to slide on the outer side of the corresponding mounting plate by the rotation of the closing plate.

3. The circuit breaker two-in-one mechanical interlocking device according to claim 2, characterized in that: A connecting piece 1 is fixedly arranged on the closing linkage plate, and the connecting piece 1 can slide back and forth in the sliding groove of the closing plate.

4. The circuit breaker two-in-one mechanical interlocking device according to claim 2, characterized in that: The closing linkage plate is linked with the opposite locking linkage plate through a connecting piece 3.

5. The circuit breaker two-in-one mechanical interlocking device according to claim 1, characterized in that: The locking assembly 1 and the locking assembly 2 are both composed of a locking plate, one end of which is rotatably connected to a mounting plate on the same side, and the other end of which is slidably connected to a corresponding locking linkage plate.

6. The circuit breaker two-in-one mechanical interlocking device according to claim 5, characterized in that: A connecting piece 2 is fixedly provided on both the locking linkage plate 1 and the locking linkage plate 2, and the connecting piece 2 can slide back and forth in the sliding groove of the locking plate; when the corresponding locking linkage plate slides upward, the position of the connecting piece 2 in the corresponding locking plate in the sliding groove changes to realize the rotation of the corresponding locking plate.

7. The circuit breaker two-in-one mechanical interlocking device according to claim 1, characterized in that: The first mounting plate and the second mounting plate are both provided with a reset mechanism 1, and the two reset mechanisms 1 are respectively used for resetting the first closing component and the second closing component when they are in a disconnected state.

8. The circuit breaker two-in-one mechanical interlocking device according to claim 1, characterized in that: The rotating ends of the closing assembly 1 and the closing assembly 2 are both connected to the mounting plate through a connecting plate.

9. The circuit breaker two-in-one mechanical interlocking device according to claim 1, characterized in that: A reset mechanism 2 is provided on both the mounting plate 1 and the mounting plate 2. The two reset mechanisms 2 are respectively used for resetting the vertical movement of the locking linkage plate 1 and the locking linkage plate 2. One end of the reset mechanism 2 is arranged on the corresponding mounting plate, and the other end is arranged on the corresponding locking linkage plate.

10. Switch cabinet, characterized in that: It comprises the two-in-one mechanical interlocking device of a circuit breaker as described in any one of claims 1 to 9, and the two-in-one mechanical interlocking device of a circuit breaker is arranged on a switch cabinet body.

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