Secondary interlocking mechanism of 61 cabinet

Abstract

The utility model relates to the technical field of electric appliance cabinets, and particularly discloses a 61 cabinet secondary interlocking mechanism which comprises an instrument room bottom plate, an interlocking box A and an interlocking box B, the interlocking box A and the interlocking box B are arranged on the inner side of the instrument room bottom plate, a driving beam is arranged above the interlocking box A and the interlocking box B, a first valve plate structure is arranged in the interlocking box A, and a second valve plate structure is arranged in the interlocking box B; handle structures are arranged at the two ends of the driving beam, the handle structures are in sliding connection with supporting structures arranged on the two sides of the instrument room bottom plate, and positioning assemblies are arranged between the supporting structures and the handle structures. When the driving beam is pushed, the driving beam shifts the valve plate structures in the interlocking box A and the interlocking box B at the same time, it is ensured that an electric device is in a closed state, and serious accidents that an isolation switch or a grounding switch is closed on load are effectively prevented. A worker pulls the driving beam through the handle structure, the positioning assembly on the supporting structure can lock the position of the handle structure, the action accuracy of the driving beam and the valve plate structure is improved, and operation safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical cabinets, in particular to a secondary interlock mechanism for a 61 cabinet. Background Art

[0002] The box-type transformer integrates the traditional transformer in a box-type housing, and has the advantages of small volume, light weight, low noise, low loss, and high reliability. It is widely used in residential areas, commercial centers, light stations, airports, factories, mines, enterprises, hospitals, schools and other places.

[0003] For example, the Chinese patent with the application number CN202120047139.7 discloses a secondary plug interlock device for a high-voltage switch cabinet, including an inner cavity. In the middle above the inner cavity, a socket is installed. An outage mechanism is installed inside the inner cavity, and the outer wall of the circuit breaker is in clearance fit with the inner surface of the inner cavity. In this secondary plug interlock device for a high-voltage switch cabinet, the spring is compressed against the concave plate. Conversely, the splint is reset by the elasticity of the spring. The splints on both sides clamp and fix the plug through rubber pads. The plug is inserted into the socket and supplies power to the circuit breaker through a wire. The circuit breaker drives the connecting blocks on both sides to move downward in the inner cavity. The inclined plate rotates on the connecting block through a pin shaft, and the hook rotates in the circular hole on the inclined plate. At the same time, the hook rotates on the round rod through a pin shaft. The hook and the inclined plate approach a vertical state, and the plug can be discharged from the socket to cut off the power, solving the problem that the existing secondary plug interlock device for a high-voltage switch cabinet cannot cut off the power in time after the circuit breaker is removed, reducing safety. However, since the interlock device will reset the splint through the elasticity of the spring, it is necessary to continuously pull the handle, resulting in easy misoperation during the power-off process and poor stability. Summary of the Utility Model

[0004] In view of the above problems, the utility model provides a secondary interlock mechanism for a 61 cabinet to solve the defect that the existing interlock mechanism will reset the splint through the elasticity of the spring, so it is necessary to continuously pull the handle, resulting in easy misoperation during the power-off process.

[0005] To achieve the purpose of the utility model, the utility model is realized through the following technical solutions: The secondary interlock mechanism for a 61 cabinet includes an instrument room bottom plate, and interlock box A and interlock box B arranged inside the instrument room bottom plate. Above interlock box A and interlock box B, there is a driving beam. The two ends of the driving beam pass through both sides of the instrument room bottom plate. Inside interlock box A, there is a first valve plate structure, and inside interlock box B, there is a second valve plate structure. Both the first valve plate structure and the second valve plate structure are rotatably connected to the driving beam;

[0006] Both ends of the driving beam are provided with handle structures, the handle structures are slidably connected to the support structures arranged on both sides of the instrument room bottom plate, and a positioning component is arranged between the support structures and the handle structures.

[0007] A further improvement lies in that: the first valve plate structure includes a first valve plate and a first dial. The upper end of the first dial is rotationally connected to the driving beam through a movable pin, the lower end of the first dial is rotationally connected to the inner side wall of the interlocking box A through a movable pin, and the first valve plate is fixedly connected to the lower end of the first dial.

[0008] A further improvement lies in that: the second valve plate structure includes a second valve plate and a second dial. The upper end of the second dial is rotationally connected to the driving beam through a movable pin, the lower end of the second dial is rotationally connected to the inner side wall of the interlocking box B through a movable pin, and the second valve plate is fixedly connected to the lower end of the second dial.

[0009] A further improvement lies in that: the handle structure includes an adapter block and a rubber handle. The adapter block is fixedly connected to both ends of the driving beam, and the rubber handle is fixedly connected to the end of the adapter block away from the driving beam.

[0010] A further improvement lies in that: the support structure includes side brackets. The side brackets are fixedly connected to both sides of the bottom plate of the instrument room, and the upper ends of the side brackets are provided with slots allowing the adapter block to be inserted therein.

[0011] A further improvement lies in that: the positioning assembly includes a first positioning bolt and a second positioning bolt. The first positioning bolt and the second positioning bolt are threadedly connected to the outer side wall of the side bracket. The first positioning bolt and the second positioning bolt penetrate into the slot. The outer side wall of the adapter block is provided with a first positioning hole threadedly engaged with the first positioning bolt, and the outer side wall of the adapter block is provided with a second positioning hole threadedly engaged with the second positioning bolt.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] When pushing the driving beam, the driving beam will simultaneously toggle the valve plate structures in the interlocking box A and the interlocking box B, ensuring that the electrical components are in the closed state, effectively preventing the occurrence of vicious accidents such as pulling or closing the disconnecting switch or earthing switch under load. The staff pulls the driving beam through the handle structure, and the positioning assembly on the support structure can lock the position of the handle structure, improving the accuracy of the actions of the driving beam and the valve plate structure, and enhancing the operation safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1 It is a structural diagram of the interlocking box A in the present utility model.

[0016] Figure 2It is the structural diagram of the interlocking box B in the present utility model.

[0017] Figure 3 It is the structural diagram of the driving beam in the present utility model.

[0018] Figure 4 It is the structural diagram of the side bracket in the present utility model.

[0019] Figure 5 It is the structural diagram of the positioning plate in the present utility model.

[0020] Wherein: 1. Instrument room floor plate; 2. Driving beam; 3. Interlocking box A; 4. Interlocking box B; 5. First valve plate; 6. First dial; 7. Second valve plate; 8. Second dial; 9. Rubber handle; 10. Connecting block; 11. Side bracket; 12. Slot; 13. First positioning bolt; 14. Second positioning bolt; 15. First positioning hole; 16. Second positioning hole. Specific embodiments

[0021] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the scope of protection of the present application.

[0022] According to Figure 1 , 2 As shown in Figures 3, 4, 5, a secondary interlocking mechanism for a 61 cabinet is proposed in this embodiment, which includes an instrument room floor plate 1 and interlocking boxes A 3 and B 4 provided inside the instrument room floor plate 1. A driving beam 2 is provided above the interlocking boxes A 3 and B 4, and both ends of the driving beam 2 pass through both sides of the instrument room floor plate 1. A first valve plate structure is provided inside the interlocking box A 3, and a second valve plate structure is provided inside the interlocking box B 4. Both the first valve plate structure and the second valve plate structure are rotatably connected to the driving beam 2;

[0023] When the driving beam 2 is pushed, the driving beam 2 will simultaneously toggle the first valve plate structure inside the interlocking box A 3 and the second valve plate structure inside the interlocking box B 4, ensuring that when the vacuum circuit breaker is in the closed state, the earthing switch cannot be closed; similarly, when the earthing switch is in the closed state, the vacuum circuit breaker cannot be advanced from the test position to the working position. It effectively prevents the occurrence of serious accidents such as pulling or closing the disconnector or earthing switch with load.

[0024] Both ends of the driving beam 2 are provided with a handle structure, the handle structure is slidably connected to the support structure provided on both sides of the instrument room floor plate 1, and a positioning component is provided between the support structure and the handle structure.

[0025] The staff pulls the driving beam 2 through the handle structure, operates the control valve piece of the driving beam 2 to open and close, the support structure limits the driving beam 2 from both ends of the driving beam 2 by cooperating with the handle structure, and the positioning component on the support structure is used to lock the position of the handle structure, improving the accuracy of the actions of the driving beam 2 and each valve piece structure and improving the operation safety.

[0026] Regarding the first valve piece structure:

[0027] The first valve piece structure includes a first valve plate 5 and a first dial 6. The upper end of the first dial 6 is rotatably connected to the driving beam 2 through a movable pin, the lower end of the first dial 6 is rotatably connected to the inner side wall of the interlocking box A3 through a movable pin, and the first valve plate 5 is fixedly connected to the lower end of the first dial 6. When the driving beam 2 is pushed forward, the driving beam 2 will drive the first dial 6 to move together. The first dial 6 rotates around the movable pin at its lower end and drives the first valve plate 5 to swing together. The first valve plate 5 completes the closing of the vacuum circuit breaker during the swing.

[0028] Regarding the second valve piece structure:

[0029] The second valve piece structure includes a second valve plate 7 and a second dial 8. The upper end of the second dial 8 is rotatably connected to the driving beam 2 through a movable pin, the lower end of the second dial 8 is rotatably connected to the inner side wall of the interlocking box B4 through a movable pin, and the second valve plate 7 is fixedly connected to the lower end of the second dial 8. When the driving beam 2 is pushed forward, the driving beam 2 drives the second dial 8 to move together. The second dial 8 rotates around the movable pin at its lower end and drives the second valve plate 7 to swing together. The second valve plate 7 completes the closing of the earthing switch during the swing. The installation of the vacuum circuit breaker and the earthing switch, the connection of the circuit, and the cooperation method between the first valve plate 5 and the second dial 8 will not be described in detail here.

[0030] The handle structure is arranged at the front and rear ends of the driving beam 2. The staff pulls the driving beam 2 through the handle structure. Specifically, the handle structure includes an adapter block 10 and a rubber handle 9. The adapter block 10 is fixedly connected to both ends of the driving beam 2, and the rubber handle 9 is fixedly connected to the end of the adapter block 10 away from the driving beam 2. The rubber handle 9 is fixed to the driving beam 2 through the adapter block 10. The rubber handle 9 plays a role in anti-slip and can improve the operation safety of the driving beam 2.

[0031] The support structure is arranged below the handle structure and fixed to the floor 1 of the instrument room for limiting the handle structure. Specifically, the support structure includes side brackets 11. The side brackets 11 are fixedly connected to both sides of the floor 1 of the instrument room, and slots 12 allowing the adapter block 10 to be inserted are opened at the upper ends of the side brackets 11. The adapter block 10 passes through the slots 12, and the slots 12 support the adapter block 10 to shake up and down and move back and forth in the slots 12.

[0032] For the specific structure of the positioning component, please refer to the following description.

[0033] The positioning assembly includes a first positioning bolt 13 and a second positioning bolt 14, which are threadedly connected to the outer wall of the side bracket 11, and the first positioning bolt 13 and the second positioning bolt 14 are inserted into the slot 12. The outer wall of the connecting block 10 is provided with a first positioning hole 15 threadedly matched with the first positioning bolt 13, and the outer wall of the connecting block 10 is provided with a second positioning hole 16 threadedly matched with the second positioning bolt 14.

[0034] The second positioning bolt 14 is staggered with the first positioning bolt 13. When the driving beam 2 moves right to close the switch, the "left and right" Figure 3 On the "left and right" of the bottom plate 1 of the middle instrument room, the first positioning hole 15 on the connection block 10 and the first positioning bolt 13 on the side bracket 11 are on the same axis. The first positioning bolt 13 is rotated and screwed into the first positioning hole 15. The first positioning bolt 13 will limit the movement of the connection block 10 and the driving beam 2 by cooperating with the first positioning hole 15. When the driving beam 2 moves to the left to open and close the switch, the second positioning hole 16 on the connection block 10 and the second positioning bolt 14 on the side bracket 11 are on the same axis. The second positioning bolt 14 is rotated and screwed into the second positioning hole 16. The second positioning bolt 14 will limit the movement of the connection block 10 and the driving beam 2 by cooperating with the second positioning hole 16.

[0035] How this application works:

[0036] When the driving beam 2 is pushed forward, the driving beam 2 will drive the first paddle 6 to move together. The first paddle 6 rotates with the movable pin at its lower end as the center, and drives the first valve plate 5 to swing together. The first valve plate 5 completes the closing of the vacuum circuit breaker during the swinging. The driving beam 2 will also drive the second paddle 8 to move together. The second paddle 8 rotates with the movable pin at its lower end as the center, and drives the second valve plate 7 to swing together. The second valve plate 7 completes the closing of the grounding switch during the swinging. The second positioning bolt 14 is staggered with the first positioning bolt 13. When the driving beam 2 moves right to close, the first positioning hole 15 on the connecting block 10 and the first positioning bolt 13 on the side bracket 11 are on the same axis. The first positioning bolt 13 is rotated and screwed into the first positioning hole 15. The first positioning bolt 13 will limit the movement of the connecting block 10 and the driving beam 2 by cooperating with the first positioning hole 15. When the driving beam 2 moves to the left to close the switch, the second positioning hole 16 on the connecting block 10 and the second positioning bolt 14 on the side bracket 11 are on the same axis. The second positioning bolt 14 is rotated and screwed into the second positioning hole 16. The second positioning bolt 14 will limit the movement of the connecting block 10 and the driving beam 2 by cooperating with the second positioning hole 16.

[0037] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. Unless otherwise clearly specified and defined, the terms "installed", "connected" and "coupled" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0038] The above are only specific embodiments of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. 61 cabinet secondary interlocking mechanism, comprising an instrument room bottom plate (1) and a locking box A (3) and a locking box B (4) arranged on the inner side of the instrument room bottom plate (1), characterized in that: A driving beam (2) is provided above the interlocking box A (3) and the interlocking box B (4), and two ends of the driving beam (2) pass through two sides of the bottom plate (1) of the instrument room. A first valve plate structure is provided in the interlocking box A (3), and a second valve plate structure is provided in the interlocking box B (4). Both the first valve plate structure and the second valve plate structure are rotatably connected to the driving beam (2); Handle structures are provided at both ends of the driving beam (2), the handle structures are slidably connected to support structures provided on both sides of the instrument room bottom plate (1), and a positioning component is provided between the support structure and the handle structure.

2. According to claim 1, the secondary interlocking mechanism of cabinet 61 is characterized in that: The first valve plate structure comprises a first valve plate (5) and a first paddle (6); the upper end of the first paddle (6) is rotatably connected to the driving beam (2) via a movable pin; the lower end of the first paddle (6) is rotatably connected to the inner wall of the interlocking box A (3) via a movable pin; and the first valve plate (5) is fixedly connected to the lower end of the first paddle (6).

3. According to claim 1, the secondary interlocking mechanism of cabinet 61 is characterized in that: The second valve plate structure comprises a second valve plate (7) and a second paddle (8); the upper end of the second paddle (8) is rotatably connected to the driving beam (2) via a movable pin; the lower end of the second paddle (8) is rotatably connected to the inner wall of the interlocking box B (4) via a movable pin; and the second valve plate (7) is fixedly connected to the lower end of the second paddle (8).

4. The 61 cabinet secondary interlocking mechanism according to claim 1 is characterized in that: The handle structure comprises a connection block (10) and a rubber handle (9), wherein the connection block (10) is fixedly connected to both ends of the driving beam (2), and the rubber handle (9) is fixedly connected to an end of the connection block (10) away from the driving beam (2).

5. The 61 cabinet secondary interlocking mechanism according to claim 4 is characterized in that: The supporting structure comprises a side bracket (11), wherein the side bracket (11) is fixedly connected to both sides of the instrument chamber bottom plate (1), and a slot (12) is provided at the upper end of the side bracket (11) to allow the connecting block (10) to be inserted therein.

6. The secondary interlocking mechanism of cabinet 61 according to claim 5 is characterized in that: The positioning assembly comprises a first positioning bolt (13) and a second positioning bolt (14), wherein the first positioning bolt (13) and the second positioning bolt (14) are threadedly connected to the outer wall of the side bracket (11), the first positioning bolt (13) and the second positioning bolt (14) are inserted into the slot (12), the outer wall of the connecting block (10) is provided with a first positioning hole (15) threadedly matched with the first positioning bolt (13), and the outer wall of the connecting block (10) is provided with a second positioning hole (16) threadedly matched with the second positioning bolt (14).

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