Ground switch and disconnector integrated operating interlock mechanism

Abstract

The utility model discloses a grounding switch and isolating switch integrated operation interlocking mechanism, including cabinet, circuit breaker, interlocking mechanism, grounding component and isolation component, when circuit breaker closing operation, then can not operate interlocking mechanism, also can not open the door panel of cabinet, can not operate isolation component and grounding component to prevent electric shock, when the door panel opens or has not closed completely, then can not operate interlocking mechanism, also can not operate isolation component and grounding component, can not operate circuit breaker closing operation to prevent electric shock. The utility model has double mechanical interlocking, has played the role of double protection, has improved the reliability and security of preventing misoperation, when solid -sealed vacuum circuit breaker closing operation or door panel opens or has not closed completely, then can not operate this interlocking mechanism, also can not operate another mechanism to prevent electric shock, whole design is reasonable, and the manufacture is simple, and the installation is convenient, and the use is reliable, and the security is high.

Description

Technical Field

[0001] This utility model belongs to the field of power technology equipment technology, specifically relating to an integrated operation interlocking mechanism for grounding switch and disconnecting switch. Background Technology

[0002] In the high-voltage switchgear system, grounding switches and disconnecting switches play a crucial role, directly affecting the stable operation of the power system and the safety of personnel.

[0003] Currently, most grounding switches and disconnecting switches in high-voltage distribution cabinets employ separate operation and interlocking mechanisms. This traditional design means that the operation of the two switches is independent, requiring operators to operate them sequentially. This places extremely high demands on the operator's skills and concentration. In actual working scenarios, operators face complex operating procedures, and even slight negligence can lead to misoperation. For example, failing to disconnect the disconnecting switch before closing the grounding switch in the prescribed order could cause a powerful current to instantly flow into the grounding terminal, triggering a short circuit, damaging equipment, or even causing a serious safety accident that threatens the operator's life.

[0004] Traditional separate operating interlocking mechanisms cannot meet this development requirement. Integrating the operating interlocking mechanisms of grounding switches and disconnecting switches can, through mechanical interlocking devices, ensure that the two switches operate according to preset logic and sequence, greatly reducing the probability of misoperation and improving operational accuracy and safety. At the same time, the integrated design simplifies the internal structure of high-voltage switchgear, reduces equipment costs, improves space utilization, and enhances the overall stability and reliability of the power system. Therefore, the development of an integrated operating interlocking mechanism for grounding switches and disconnecting switches suitable for high-voltage switchgear is urgently needed. Utility Model Content

[0005] To address the aforementioned issues, this utility model aims to provide an integrated operating interlocking mechanism for grounding switches and disconnecting switches, featuring dual mechanical interlocking for double protection, thus improving reliability and safety in preventing misoperation. When the solid-sealed vacuum circuit breaker is closed or the door is open or not fully closed, this interlocking mechanism cannot be operated, and the other mechanism cannot be operated either, to prevent electric shock. The overall design is reasonable, simple to manufacture, easy to install, reliable in use, and highly safe.

[0006] The technical problem solved by this utility model can be achieved by the following technical solution: an integrated operation interlocking mechanism for grounding switch and disconnecting switch, comprising a cabinet, a circuit breaker, an interlocking mechanism, a grounding component, and an disconnecting component, wherein: The cabinet includes a door panel, a door pin baffle, and a cabinet cavity. The door panel is located at the front of the cabinet and has a positioning hole. When the door panel is open, the door pin baffle covers the positioning hole; when the door panel is closed, the door pin baffle no longer covers the positioning hole. The circuit breaker is located at the front of the cabinet cavity. The circuit breaker is equipped with a closing button and a tripping button. Pressing the closing button or the tripping button can control the circuit breaker to close or open. The circuit breaker is equipped with a transmission mechanism to control the movement of the circuit breaker protection unit. The interlocking mechanism includes a handle, a door pin, a circuit breaker closing rod, a grounding control unit, an isolation control unit, and a circuit breaker protection unit. The handle is installed on the side of the door pin. When the handle is rotated, it can drive the door pin to move. The door pin can lock with the positioning hole to prevent the door panel from opening. The circuit breaker closing rod is located on the upper part of the circuit breaker, with one end installed in conjunction with the handle and the other end equipped with a sensor. The sensor is connected to the inside of the circuit breaker. After the sensor moves, it can release the movement restriction of the transmission mechanism inside the circuit breaker. The grounding control unit includes a grounding positioning pin and a grounding operation unit. The grounding operation unit is provided with an operating rod, a deep positioning groove and a shallow positioning groove. The grounding positioning pin is provided with a reset component at its lower part. When the grounding component is grounded, the grounding positioning pin is located in the shallow positioning groove on the grounding operation unit. The isolation control unit includes an isolation positioning pin and an isolation operation unit. The isolation operation unit is provided with an operating lever, a deep positioning groove and a shallow positioning groove. A reset element is provided at the lower part of the isolation positioning pin. When the isolation component is not isolated, the isolation positioning pin is located in the deep positioning groove on the isolation operation unit. The circuit breaker protection unit includes a first transmission rod, a second transmission rod, an interlocking component, and an isolation positioning slot. One end of the first transmission rod is installed in conjunction with the transmission mechanism inside the circuit breaker, and the other end is hinged to the second transmission rod, so that when the first transmission rod rotates, it can drive the second transmission rod to move. The second transmission rod is connected to the interlocking component, and the second transmission rod can drive the interlocking component to move, so that the interlocking component is connected to the isolation positioning slot. After the interlocking component is connected to the isolation positioning slot, the circuit breaker is in the closed state.

[0007] The grounding assembly includes several grounding contacts, grounding blades, a grounding transmission rod, and a grounding connecting rod. Several grounding blades are installed on the grounding connecting rod. One end of the grounding connecting rod is hinged to the grounding transmission rod, and the other end of the grounding transmission rod is installed in conjunction with the grounding operating part. When the grounding operating part rotates, it drives the grounding transmission rod to move along the extension direction of the rod and drives the grounding connecting rod to rotate, so that the grounding blades are connected to or disconnected from the grounding contacts. When the grounding blades are connected to the grounding contacts, the grounding assembly is in a grounded state.

[0008] The isolation assembly includes several isolation contacts, isolation blades, isolation transmission rods, and isolation connecting rods. Several isolation blades are provided on the isolation connecting rods. One end of the isolation connecting rod is hinged to the isolation transmission rod, and the other end of the isolation transmission rod is installed in conjunction with the isolation operating part. When the isolation operating part rotates, it drives the isolation transmission rod to move along the extension direction of the rod and drives the isolation connecting rod to rotate, so that the isolation blades are connected to or disconnected from the isolation contacts. When the isolation blades are connected to the isolation contacts, the isolation assembly is in an unisolated state.

[0009] It also includes a lock seat, which is located on the upper part of the reset member and fixedly connected to the door pin. The lock seat includes a first slot, a second slot and a travel slot. The grounding positioning pin and the isolation positioning pin are located in the travel slot. When the grounding positioning pin or the isolation positioning pin is on the same vertical line as the first slot or the second slot, it can move up and down into the first slot or the second slot.

[0010] When the grounding component is in the grounding state, the first slot and the grounding positioning pin are on the same vertical line. The grounding positioning pin can be moved downward to disengage from the shallow positioning slot on the grounding operation part, so that the operating rod on the grounding operation part can be moved downward and drive the grounding operation part to rotate, so that the grounding component becomes ungrounded.

[0011] A crank arm is provided at the rear of the handle. The other end of the crank arm is connected to the circuit breaker closing rod. When the handle is rotated, it can drive the crank arm to rotate, which in turn drives the circuit breaker closing rod to rotate. When the circuit breaker closing rod rotates, it causes the sensing element to move.

[0012] Rotating the handle can move the lock seat, so that the second slot and the isolation positioning pin are on the same vertical line. The isolation positioning pin can be moved downward to disengage from the deep positioning groove of the isolation operating part, so that the operating lever on the isolation operating part can be moved downward and drive the isolation operating part to rotate, so that the isolation assembly is in an unisolated state.

[0013] The isolation positioning slot is located at the rear of the isolation positioning pin. When the isolation component is in the unisolated state, the interlocking component and the isolation positioning slot are on the same center line, so that the interlocking component can be inserted into the isolation positioning slot and the circuit breaker is in the closed state.

[0014] After the operating lever moves downward, the reset component can push the grounding positioning pin or the isolation positioning pin into the positioning groove opposite to the original deep positioning groove or shallow positioning groove, thereby causing the grounding positioning pin to leave the first slot or the isolation positioning pin to enter the second slot, thereby releasing or restoring the movement restriction on the lock seat.

[0015] An operating method for an integrated operating interlocking mechanism for a grounding switch and a disconnecting switch includes the following steps: Step 1: Close the door panel so that the door latch stop no longer covers the positioning hole; Step 2: Move the grounding positioning pin downwards, pull the operating lever to rotate the grounding operating part, and change the grounding component to an ungrounded state; Step 3: Rotate the handle to insert the door pin into the positioning hole and lock it in place. This restricts the movement of the grounding positioning pin, while the isolation positioning pin can move downwards, causing the sensing element to move. Step 4: Move the isolation positioning pin downwards, pull the operating lever to rotate the isolation operating part, and change the isolation assembly to the unisolated state; Step 5: Press the closing button to put the circuit breaker in the closed state.

[0016] Compared with the prior art, this utility model has the following advantages: This utility model has a double mechanical interlock, which plays a dual protection role and improves the reliability and safety of preventing misoperation; when the solid-sealed vacuum circuit breaker is closed or the door is open or not fully closed, this interlock mechanism cannot be operated, and the other mechanism cannot be operated at the same time to prevent electric shock; the overall design is reasonable, the manufacturing is simple, the installation is convenient, the use is reliable, and the safety is high. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model. Figure 1 ; Figure 2 This is a schematic diagram of the structure of this utility model. Figure 2 ; Figure 3 This is a schematic diagram of the structure of this utility model. Figure 3 And a magnified view of the details; Figure 4 This is a schematic diagram of the interlocking mechanism. Figure 1 ; Figure 5 This is a structural diagram of the interlocking mechanism, grounding assembly, and isolation assembly. Figure 1 ; Figure 6 This is a structural diagram of the interlocking mechanism, grounding assembly, and isolation assembly. Figure 2 ; Figure 7 This is a schematic diagram of the interlocking mechanism. Figure 2 ; Figure 8 This is a schematic diagram of the interlocking mechanism. Figure 3 .

[0018] In the diagram: 1-Cabinet body, 11-Door panel, 111-Positioning hole, 12-Door pin baffle, 2-Circuit breaker, 21-Close button, 22-Open button, 3-Interlocking mechanism, 301-Operating lever, 302-Reset component, 303-Lock seat, 3031-First slot, 3032-Second slot, 3033-Travel groove, 304-Deep positioning groove, 305-Shallow positioning groove, 31-Handle part, 311-Crank arm part, 32-Door pin, 33-Circuit breaker closing lever, 331-Sensing component, 34-Grounding control part. 341-Grounding positioning pin, 342-Grounding operating part, 35-Isolation control part, 351-Isolation positioning pin, 352-Isolation operating part, 36-Circuit breaker protection part, 361-First transmission rod, 362-Second transmission rod, 363-Interlocking component, 364-Isolation positioning groove, 4-Grounding assembly, 41-Grounding contact, 42-Grounding knife, 43-Grounding connecting rod, 44-Grounding transmission rod, 5-Isolation assembly, 51-Isolation contact, 52-Isolation knife, 53-Isolation connecting rod, 54-Isolation transmission rod. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0020] In the description of this utility model, it should be understood that the terms "one end", "the other end", "outer side", "upper", "inner side", "horizontal", "coaxial", "center", "end", "length", "outer end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] Combined with appendix Figures 1 to 8 As shown, this embodiment discloses an integrated operation interlocking mechanism for a grounding switch and a disconnecting switch, including a cabinet 1, a circuit breaker 2, an interlocking mechanism 3, a grounding component 4, and a disconnecting component 5, wherein: The cabinet 1 includes a door panel 11, a door pin baffle 12, and a cabinet cavity. The door panel 11 is located at the front of the cabinet 1. The door panel 11 is provided with a positioning hole 111. When the door panel 11 is opened, the door pin baffle 12 covers the positioning hole 111, preventing the door pin 32 from passing through the positioning hole 111, thereby preventing accidental operation of the handle part 31. When the door panel 11 is closed, the door pin baffle 12 no longer covers the positioning hole 111. Circuit breaker 2 is located at the front of the cabinet cavity. Circuit breaker 2 is equipped with a closing button 21 and a opening button 22. Pressing the closing button 21 or the opening button 22 can control the circuit breaker 2 to close or open. The circuit breaker 2 is equipped with a transmission mechanism to control the movement of the circuit breaker protection unit 36. The interlocking mechanism 3 includes a handle 31, a door pin 32, a circuit breaker closing lever 33, a grounding control unit 34, an isolation control unit 35, and a circuit breaker protection unit 36. The handle 31 is mounted on the side of the door pin 32. When the handle 31 rotates, it can drive the door pin 32 to move. The door pin 32 can lock with the positioning hole 111 to prevent the door panel 11 from opening. The circuit breaker closing lever 33 is located on the upper part of the circuit breaker 2, with one end cooperating with the handle 31 and the other end equipped with a sensor 3. 31. The sensing element 331 is connected inside the circuit breaker 2. Preferably, in this embodiment, the sensing element 311 adopts a pin structure and passes through the end side of the circuit breaker closing rod 33 and the upper part of the circuit breaker 2. When the circuit breaker closing rod 33 rotates, it can drive the sensing element 331 to move. After the sensing element 331 moves, the movement restriction of the transmission mechanism inside the circuit breaker 2 can be released. That is, before the sensing element 311 moves, pressing the closing button 21 will not cause the transmission mechanism to close the circuit breaker 2. The grounding control unit 34 includes a grounding positioning pin 341 and a grounding operation unit 342. The grounding operation unit 342 is provided with an operation rod 301, a deep positioning groove 304 and a shallow positioning groove 305. The grounding positioning pin 341 is provided with a reset member 302 at its lower part. Preferably, in this embodiment, the reset member 302 adopts a spring structure. When the grounding component 4 is grounded, the grounding positioning pin 341 is located in the shallow positioning groove 305 on the grounding operation unit 342. The isolation control unit 35 includes an isolation positioning pin 351 and an isolation operation unit 352. The isolation operation unit 352 is provided with an operation lever 301, a deep positioning groove 304 and a shallow positioning groove 305. The lower part of the isolation positioning pin 351 is provided with a reset member 302. When the isolation component 5 is not isolated, the isolation positioning pin 351 is located in the deep positioning groove 304 on the isolation operation unit 352. The circuit breaker protection unit 36 ​​includes a first transmission rod 361, a second transmission rod 362, an interlocking element 363, and an isolation positioning groove 364. One end of the first transmission rod 361 is fitted with the transmission mechanism inside the circuit breaker 2, and the other end is hinged to the second transmission rod 362. Preferably, in this embodiment, the circuit breaker 2 adopts a circuit breaker structure such as an indoor high-voltage vacuum circuit breaker of model ZN63A (RMVS1) in the prior art. The transmission mechanism inside the circuit breaker 2 achieves transmission through the energy storage process of the circuit breaker 2. Specifically... Before circuit breaker 2 is closed, a certain amount of energy needs to be stored in circuit breaker 2. That is, circuit breaker 2 needs to store enough force before it can be closed. This allows the first transmission rod 361 to rotate and drive the second transmission rod 362 to move. The second transmission rod 362 is connected to the interlocking component 363. The second transmission rod 362 can drive the interlocking component 363 to move, so that the interlocking component 363 is connected to the isolation positioning groove 364. After the interlocking component 363 is connected to the isolation positioning groove 364, circuit breaker 2 is in the closed state.

[0022] In summary, the grounding assembly 4 includes several grounding contacts 41, grounding blades 42, a grounding transmission rod 44, and a grounding connecting rod 43. The grounding connecting rod 43 is provided with several grounding blades 42. Preferably, in this embodiment, the number of grounding contacts 41 and grounding blades 42 is three each. One end of the grounding connecting rod 43 is hinged to the grounding transmission rod 44, and the other end of the grounding transmission rod 44 is fitted with the grounding operating part 341. Preferably, in this embodiment, the rear of the grounding operating part 341 is provided with a mounting groove, and the end of the grounding transmission rod 44 is installed in the mounting groove via a movable joint. When the grounding operating part 341 rotates, it drives the grounding transmission rod 44 to move along the extension direction of the rod, and drives the grounding connecting rod 43 to rotate, causing the grounding blades 42 to connect or disconnect from the grounding contacts 41. When the grounding blades 42 are connected to the grounding contacts 41, the grounding assembly 4 is in a grounded state; when the grounding blades 42 are disconnected from the grounding contacts 41, the grounding assembly 4 is in an ungrounded state.

[0023] In summary, the isolation assembly 5 includes a plurality of isolation contacts 51, isolation blades 52, an isolation transmission rod 54, and an isolation connecting rod 53. The isolation connecting rod 53 is provided with a plurality of isolation blades 52. Preferably, in this embodiment, the number of isolation contacts 51 and isolation blades 52 is three each. One end of the isolation connecting rod 53 is hinged to the isolation transmission rod 54, and the other end of the isolation transmission rod 54 is fitted to the isolation operating part 351. Preferably, in this embodiment, the installation structure of the isolation transmission rod 54 and the isolation operating part 351 is consistent with the installation structure of the grounding transmission rod 44 and the grounding operating part 341. When the isolation operating part 351 rotates, it drives the isolation transmission rod 54 to move along the extension direction of the rod, and drives the isolation connecting rod 53 to rotate, causing the isolation blades 52 to connect or disconnect from the isolation contacts 51. When the isolation blades 52 are connected to the isolation contacts 51, the isolation assembly 5 is in an unisolated state; when the isolation blades 52 are disconnected from the isolation contacts 51, the isolation assembly 5 is in an isolated state.

[0024] In conjunction with the above installation structure, the interlocking mechanism 3 also includes a lock seat 303. The lock seat 303 is located on the upper part of the reset member 302 and is fixedly connected to the door pin 32. When the door pin 32 moves, it can drive the lock seat 303 to move in coordination. The lock seat 303 includes a first slot 3031, a second slot 3032 and a travel groove 3033. The grounding positioning pin 341 and the isolation positioning pin 351 are located in the travel groove 3033. When the grounding positioning pin 341 or the isolation positioning pin 351 is on the same vertical line as the first slot 3031 or the second slot 3032, it can move up and down into the first slot 3031 or the second slot 3032.

[0025] In conjunction with the above, when the grounding component 4 is in the grounded state, the first slot 3031 and the grounding positioning pin 341 are located on the same vertical line. The grounding positioning pin 341 can be moved downward to disengage from the shallow positioning groove 305 on the grounding operation part 342, so that the operating rod 301 on the grounding operation part 342 can be moved downward and drive the grounding operation part 342 to rotate, so that the grounding component 4 becomes ungrounded.

[0026] In conjunction with the above, a crank arm 311 is provided at the rear of the handle part 31. The other end of the crank arm 311 is connected to the circuit breaker closing rod 33. Preferably, in this embodiment, the crank arm 311 is integrally formed, and the other end of the crank arm 311 is threaded and passes through the end side of the circuit breaker closing rod 33. It is prevented from disengaging by fasteners such as nuts. When the handle part 31 rotates, it can drive the crank arm 311 to rotate. The crank arm 311 drives the circuit breaker closing rod 33 to rotate. Since the rotation direction of the crank arm 311 and the rotation direction of the circuit breaker closing rod 33 are perpendicular to each other in this embodiment, the crank arm 311 and the circuit breaker closing rod 33 will lock each other after rotating a small angle to prevent the sensor 331 from moving too far due to the excessive rotation angle. When the circuit breaker closing rod 33 rotates, the sensor 331 moves.

[0027] In another embodiment, in conjunction with the above installation structure, several crank arms of the crank arm portion 311 are connected by movable joints, allowing the crank arms to rotate. This prevents the circuit breaker closing rod 33 from locking with the crank arm portion 311 when rotating, thereby improving the smoothness of the transmission structure.

[0028] In conjunction with the above, rotating the handle 31 can move the lock seat 303, so that the second slot 3032 and the isolation positioning pin 351 are on the same vertical line. The isolation positioning pin 351 can be moved downward to disengage from the deep positioning groove 304 of the isolation operation part 352, so that the operating rod 301 on the isolation operation part 352 can be moved downward and drive the isolation operation part 352 to rotate, so that the isolation component 5 becomes an unisolated state.

[0029] In summary, the isolation positioning slot 364 is located behind the isolation positioning pin 351. When the isolation component 5 is in an unisolated state, the interlocking member 363 and the isolation positioning slot 364 are on the same center line, allowing the interlocking member 363 to be inserted into the isolation positioning slot 364, thus putting the circuit breaker 2 in the closed state. When the isolation component 5 is in an isolated state, when the circuit breaker 2 is closed, the interlocking member 363 and the isolation positioning slot 364 are not on the same center line, thus preventing the circuit breaker 2 from being closed and preventing misoperation.

[0030] In conjunction with the above, after the operating lever 301 moves downward, the reset member 302 can push the grounding positioning pin 341 or the isolation positioning pin 351 into the positioning groove opposite to the original deep positioning groove 304 or shallow positioning groove 305, thereby causing the grounding positioning pin 341 to leave the first slot 3031 or causing the isolation positioning pin 351 to enter the second slot 3032, thereby releasing or restoring the movement restriction on the lock seat 303.

[0031] In conjunction with the above, this utility model also discloses an operation method for an integrated operation interlocking mechanism of a grounding switch and a disconnecting switch, comprising the following steps: Step 1: Close the door panel 11 so that the door pin baffle 12 no longer covers the positioning hole 111. Under the pushing force of the door panel 11, the door pin baffle 12 will move towards the inside of the cabinet 1, and the door pin baffle 12 will no longer block the door pin 32.

[0032] Step two: Move the grounding positioning pin 341 downwards and pull the operating lever 301 to rotate the grounding operating part 342, so that the grounding component 4 becomes ungrounded. In this step, under the action of the reset member 302, the grounding positioning pin 341 is reset and then inserted into the deep positioning groove 304 of the grounding operating part 342. The grounding positioning pin 341 moves upwards a little distance. At this time, the grounding positioning pin 341 leaves the first slot 3031, which releases the restriction on the movement of the lock seat 303, and also releases the restriction on the misoperation of the handle part 31. Step 3: Rotate the handle 31 to insert the door pin 12 into the positioning hole 111 and lock it in place. This restricts the movement of the grounding positioning pin 341, while the isolation positioning pin 351 can move downwards, causing the sensing element 331 to move. In this step, the door pin 32 is inserted into the positioning hole 111, locking the door panel 11 and preventing it from being opened. The lock seat 303 moves to the right. At this time, the grounding positioning pin 341 is located in the travel groove 3033 and is not on the same vertical line as the first slot 3031, thus restricting the vertical movement of the grounding positioning pin 341 and preventing accidental operation of the grounding component 4. The lock seat 303 moves to the right. At this time, the second slot 3032 and the isolation positioning pin 351 are on the same vertical line, thus releasing the restriction on the movement of the isolation positioning pin 351. The handle 31 rotates, causing the crank arm 311 to rotate. The crank arm 311 then rotates the circuit breaker closing rod 33, causing the sensing element 331 to move, and the circuit breaker 2 begins to store energy.

[0033] Step four: Move the isolation positioning pin 351 downwards and pull the operating lever 301 to rotate the isolation operating part 352, so that the isolation component 5 becomes unisolated. In this step, under the action of the reset member 302, the isolation positioning pin 351 is reset and then locked into the shallow positioning groove 305 of the isolation operating part 352. The isolation positioning pin 351 moves downwards a little distance. At this time, the isolation positioning pin 351 is locked into the second slot 3032, which restricts the movement of the lock seat 303, that is, restricts the operation of the handle part 31.

[0034] Step 5: Press the closing button 21. The circuit breaker 2 releases the stored energy, causing the first transmission rod 361 to rotate, which in turn drives the second transmission rod 362 and the interlocking component 363 to move, so that the interlocking component 363 is inserted into the isolation positioning slot 364, and the circuit breaker 2 is in the closed state.

[0035] In conjunction with the above installation structure, in other embodiments, the vertical positional relationship of each component can be interchanged without changing the transmission relationship of each component.

[0036] This utility model features a double mechanical interlock, providing dual protection and improving the reliability and safety of preventing misoperation. When the solid-sealed vacuum circuit breaker is closed or the door is open or not fully closed, this interlock mechanism cannot be operated, and the other mechanism cannot be operated either, to prevent electric shock. The overall design is reasonable, simple to manufacture, easy to install, reliable to use, and highly safe.

[0037] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the utility model. Any simple modifications, equivalent changes, or alterations made to the above embodiments based on the technical principles of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. An integrated operating interlocking mechanism for a grounding switch and a disconnecting switch, comprising a cabinet (1), a circuit breaker (2), an interlocking mechanism (3), a grounding component (4), and a disconnecting component (5), characterized in that: The cabinet (1) includes a door panel (11), a door pin baffle (12), and a cabinet cavity. The door panel (11) is located at the front of the cabinet (1). The door panel (11) is provided with a positioning hole (111). When the door panel (11) is opened, the door pin baffle (12) covers the positioning hole (111). When the door panel (11) is closed, the door pin baffle (12) no longer covers the positioning hole (111). The circuit breaker (2) is located at the front of the cabinet cavity. The circuit breaker (2) is equipped with a closing button (21) and a tripping button (22). Pressing the closing button (21) or the tripping button (22) can control the circuit breaker (2) to close or open. The circuit breaker (2) is equipped with a transmission mechanism to control the movement of the circuit breaker protection part (36). The interlocking mechanism (3) includes a handle (31), a door pin (32), a circuit breaker closing rod (33), a grounding control unit (34), an isolation control unit (35), and a circuit breaker protection unit (36). The handle (31) is installed on the side of the door pin (32). When the handle (31) rotates, it can drive the door pin (32) to move. The door pin (32) can be locked with the positioning hole (111) to prevent the door panel (11) from opening. The circuit breaker closing rod (33) is located on the upper part of the circuit breaker (2), and one end is installed in conjunction with the handle (31). The other end is provided with a sensor (331). The sensor (331) is connected to the inside of the circuit breaker (2). After the sensor (331) moves, it can release the movement restriction of the transmission mechanism inside the circuit breaker (2). The grounding control unit (34) includes a grounding positioning pin (341) and a grounding operation unit (342). The grounding operation unit (342) is provided with an operation rod (301), a deep positioning groove (304) and a shallow positioning groove (305). The grounding positioning pin (341) is provided with a reset member (302) at its lower part. When the grounding component (4) is grounded, the grounding positioning pin (341) is located in the shallow positioning groove (305) on the grounding operation unit (342). The isolation control unit (35) includes an isolation positioning pin (351) and an isolation operation unit (352). The isolation operation unit (352) is provided with an operation lever (301), a deep positioning groove (304) and a shallow positioning groove (305). The isolation positioning pin (351) is provided with a reset member (302) at its lower part. When the isolation component (5) is not isolated, the isolation positioning pin (351) is located in the deep positioning groove (304) on the isolation operation unit (352). The circuit breaker protection unit (36) includes a first transmission rod (361), a second transmission rod (362), an interlocking member (363), and an isolation positioning groove (364). One end of the first transmission rod (361) is installed in conjunction with the transmission mechanism inside the circuit breaker (2), and the other end is hinged to the second transmission rod (362), so that when the first transmission rod (361) rotates, it can drive the second transmission rod (362) to move. The second transmission rod (362) is connected to the interlocking member (363), and the second transmission rod (362) can drive the interlocking member (363) to move, so that the interlocking member (363) is connected to the isolation positioning groove (364). After the interlocking member (363) is connected to the isolation positioning groove (364), the circuit breaker (2) is in the closed state.

2. An integrated operating interlocking mechanism for an earthing switch and disconnector according to claim 1, characterized in that: The grounding assembly (4) includes several grounding contacts (41), grounding blades (42), grounding transmission rods (44), and grounding connecting rods (43). Several grounding blades (42) are provided on the grounding connecting rods (43). One end of the grounding connecting rods (43) is hinged to the grounding transmission rods (44), and the other end of the grounding transmission rods (44) is installed in conjunction with the grounding operating part (341). When the grounding operating part (341) rotates, it drives the grounding transmission rods (44) to move along the extension direction of the rod, and drives the grounding connecting rods (43) to rotate, so that the grounding blades (42) are connected to or disconnected from the grounding contacts (41). When the grounding blades (42) are connected to the grounding contacts (41), the grounding assembly (4) is in a grounded state.

3. An integrated operating interlocking mechanism for an earthing switch and disconnector according to claim 2, characterized in that: The isolation assembly (5) includes several isolation contacts (51), isolation blades (52), isolation transmission rods (54), and isolation connecting rods (53). Several isolation blades (52) are provided on the isolation connecting rods (53). One end of the isolation connecting rods (53) is hinged to the isolation transmission rods (54), and the other end of the isolation transmission rods (54) is installed in conjunction with the isolation operating part (351). When the isolation operating part (351) rotates, it drives the isolation transmission rods (54) to move along the extension direction of the rod, and drives the isolation connecting rods (53) to rotate, so that the isolation blades (52) are connected to or disconnected from the isolation contacts (51). When the isolation blades (52) are connected to the isolation contacts (51), the isolation assembly (5) is in an unisolated state.

4. An integrated operating interlocking mechanism for earthing switch and disconnector according to claim 1, characterized in that: It also includes a lock seat (303), which is located on the upper part of the reset member (302) and fixedly connected to the door pin (32). The lock seat (303) includes a first slot (3031), a second slot (3032) and a travel groove (3033). The grounding positioning pin (341) and the isolation positioning pin (351) are located in the travel groove (3033). When the grounding positioning pin (341) or the isolation positioning pin (351) is located on the same vertical line as the first slot (3031) or the second slot (3032), it can move up and down into the first slot (3031) or the second slot (3032).

5. An integrated operating interlock mechanism for an earthing switch and disconnector according to claim 4, characterized in that: When the grounding component (4) is in the grounding state, the first slot (3031) and the grounding positioning pin (341) are located on the same vertical line. The grounding positioning pin (341) can be moved downward to disengage from the shallow positioning groove (305) on the grounding operation part (342), so that the operating rod (301) on the grounding operation part (342) can be moved downward and drive the grounding operation part (342) to rotate, so that the grounding component (4) becomes ungrounded.

6. An integrated operating interlock mechanism for an earthing switch and disconnector according to claim 1, characterized in that: The handle (31) is provided with a crank arm (311) at the rear. The other end of the crank arm (311) is connected to the circuit breaker closing rod (33). When the handle (31) rotates, it can drive the crank arm (311) to rotate. The crank arm (311) drives the circuit breaker closing rod (33) to rotate. When the circuit breaker closing rod (33) rotates, it causes the sensing element (331) to move.

7. An integrated operating interlock mechanism for a grounding switch and disconnector according to claim 6, characterized in that: The rotation of the handle (31) can drive the lock seat (303) to move, so that the second slot (3032) and the isolation positioning pin (351) are on the same vertical line. The isolation positioning pin (351) can be moved downward to disengage from the deep positioning groove (304) of the isolation operation part (352), so that the operating rod (301) on the isolation operation part (352) can move downward and drive the isolation operation part (352) to rotate, so that the isolation component (5) becomes an unisolated state.

8. An integrated interlocking mechanism for grounding switch and disconnector according to claim 7, characterized in that: The isolation positioning slot (364) is located at the rear of the isolation positioning pin (351). When the isolation component (5) is in an unisolated state, the interlocking member (363) and the isolation positioning slot (364) are located on the same center line, so that the interlocking member (363) can be inserted into the isolation positioning slot (364) and the circuit breaker (2) is in the closed state.

9. The integrated operating interlocking mechanism for grounding switch and disconnecting switch according to claim 8, characterized in that: After the operating lever (301) moves downward, the reset member (302) can push the grounding positioning pin (341) or the isolation positioning pin (351) into the positioning groove opposite to the original deep positioning groove (304) or shallow positioning groove (305), thereby causing the grounding positioning pin (341) to leave the first slot (3031) or the isolation positioning pin (351) to enter the second slot (3032), thereby releasing or restoring the movement restriction on the lock seat (303).

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