Gas insulated switchgear operating mechanism with interlocking function

Abstract

The utility model relates to an inflatable cabinet operating mechanism with an interlocking function, and relates to the field of inflatable cabinets, the inflatable cabinet operating mechanism comprises an interlocking plate, an interlocking rod and an interlocking assembly, the interlocking rod is arranged on a circuit breaker operating shaft, and the interlocking assembly is arranged on an isolating switch operating shaft; when the circuit breaker operation shaft and the isolation switch operation shaft are both in a closing state, the end portion of the interlocking rod abuts against the interlocking plate, opening and closing can be operated through the circuit breaker operation shaft, position changing of the interlocking plate cannot be achieved by operating the isolation switch operation shaft, and interlocking reliability is improved.

Description

Technical Field

[0001] This application relates to the field of gas-insulated switchgear, and particularly to an operating mechanism of a gas-insulated switchgear with an interlocking function. Background Art

[0002] Indoor AC high-voltage gas-insulated metal-enclosed switchgear (hereinafter referred to as "gas-insulated switchgear") is a new generation of switchgear. The main switch can be either a permanent magnet mechanism vacuum circuit breaker or a spring mechanism vacuum circuit breaker. The whole cabinet combines air insulation with sulfur hexafluoride gas compartments, which is both compact and expandable, and is suitable for distribution automation. The gas-insulated switchgear has the characteristics of compact structure, flexible operation, and reliable interlocking, and can provide satisfactory technical solutions for various different application scenarios (especially in harsh environments) and different user requirements. The adoption of sensing technology and the latest protection relays, combined with advanced technical performance and a lightweight and flexible assembly scheme, can fully meet the different needs of users.

[0003] Disconnecting switches and vacuum circuit breakers are often equipped on the gas-insulated switchgear, and there is a certain operating sequence between the two, that is, disconnecting switch closing - vacuum circuit breaker closing - vacuum circuit breaker opening - disconnecting switch opening. In order to avoid the reversal of the operating sequence, it is often necessary to set an interlocking mechanism between the operating shaft of the disconnecting switch and the operating shaft of the vacuum circuit breaker to prevent misoperation. For example, an interlocking baffle will block the installation of the operating handle on the operating shaft of the vacuum circuit breaker when the disconnecting switch is opened, and will block the installation of the operating handle on the operating shaft of the disconnecting switch when the vacuum circuit breaker is closed. However, this interlocking structure can still be opened by the user with brute force and then the operating handle is installed, making the interlocking function ineffective. Therefore, an additional interlocking structure is needed to ensure the safety of operation. Summary of the Utility Model

[0004] In order to improve the technical problem of low interlocking reliability in the prior art, this application provides an operating mechanism of a gas-insulated switchgear with an interlocking function.

[0005] An operating mechanism of a gas-insulated switchgear with an interlocking function provided by this application adopts the following technical solutions:

[0006] An operating mechanism for an inflatable cabinet with an interlocking function, a circuit breaker frame and an isolating switch frame. The circuit breaker frame is provided with a circuit breaker operating shaft in rotational cooperation, and the isolating switch frame is provided with an isolating switch operating shaft in rotational cooperation. It further includes an interlocking plate, an interlocking rod and an interlocking component. The interlocking rod is arranged on the circuit breaker operating shaft, and the interlocking component is arranged on the isolating switch operating shaft. The interlocking plate is slidably arranged between the circuit breaker frame and the isolating switch frame. One end of the interlocking plate close to the circuit breaker frame is provided with a first operating groove, and both the isolating switch operating shaft and the interlocking rod are located in the first operating groove. When both the circuit breaker operating shaft and the isolating switch operating shaft are in the closed state, the end of the interlocking rod abuts against the interlocking plate.

[0007] By adopting the above technical solution, when both the circuit breaker operating shaft and the isolating switch operating shaft are in the closed state, the end of the interlocking rod abuts against the interlocking plate. At this time, the opening and closing can be operated through the circuit breaker operating shaft, but the interlocking plate cannot be transposed by operating the isolating switch operating shaft, which improves the reliability of the interlocking.

[0008] Optionally, the interlocking component includes a first slider, a first spring, a second slider and a second spring. A second operating groove is formed at the bottom of the interlocking plate. First chutes and second chutes are respectively formed on the side walls on both sides of the second operating groove. The first slider is slidably arranged in the first chute, the first spring is located between the first slider and the bottom of the first chute, the second slider is slidably arranged in the second slider, and the second spring is located between the second slider and the bottom of the second chute.

[0009] By adopting the above technical solution, when the circuit breaker operating shaft and the isolating switch operating shaft are switched from the closed state to the open state, the first slider moves towards the direction close to the second slider under the action of the first spring, and the second slider moves towards the direction close to the first slider under the action of the second spring until the first slider and the second slider abut against each other. The sides of the first slider and the second slider away from the circuit breaker frame abut against the isolating switch operating shaft, so that the circuit breaker operating shaft cannot rotate, that is, the interlocking plate cannot be transposed by operating the circuit breaker operating shaft, further improving the reliability of the interlocking.

[0010] Optionally, the interlocking component further includes a triangular fixing block. The cross-sections of the first slider and the second slider are both triangular. The triangular fixing block is arranged on the isolating switch frame, and the sides of the first slider and the second slider away from the circuit breaker frame abut against the triangular fixing block.

[0011] By adopting the above technical solution, when the circuit breaker operating shaft is rotated to drive the interlocking rod to rotate, and the end of the interlocking rod leaves the abutment with the interlocking plate, at this time, the first slider moves towards the second slider under the action of the first spring, and the second slider also moves towards the first slider under the action of the second spring. Under the action of the triangular fixed block, both the first slider and the second slider move towards the circuit breaker frame, driving the interlocking plate to also move towards the circuit breaker frame, thereby driving the circuit breaker operating shaft to switch from the closing state to the opening state, reducing the difficulty of the operation steps and improving the convenience of the operation.

[0012] Optionally, the interlocking component further includes a gear, the gear is arranged on one side of the disconnecting switch operating shaft close to the disconnecting switch frame, the gear is coaxially arranged with the disconnecting switch operating shaft, and when the disconnecting switch operating shaft rotates, the gear can be driven to rotate together.

[0013] By adopting the above technical solution, when the disconnecting switch operating shaft is rotated, the gear can be driven to rotate together.

[0014] Optionally, the interlocking component further includes a rack, the rack is slidably arranged on the disconnecting switch frame, and the sliding direction is the same as the sliding direction of the interlocking plate, the rack is mutually adapted to the gear, and when the gear rotates, the rack can be driven to slide.

[0015] By adopting the above technical solution, when the disconnecting switch operating shaft is rotated, the gear can be driven to rotate together, and further drive the rack to slide.

[0016] Optionally, a connecting rod is fixedly connected to one side of the rack close to the circuit breaker frame, and a first push block and a second push block are fixedly arranged on both sides of the connecting rod close to the gear. The first push block abuts against the first slider, and the second push block abuts against the second slider.

[0017] By adopting the above technical solution, when the disconnecting switch operating shaft is rotated, the gear can be driven to rotate together, thereby driving the rack to move, thereby driving the connecting rod, the first push block and the second push block to move away from the circuit breaker frame, thereby driving the first slider and the second slider to move away from the circuit breaker frame. At the same time, the first slider and the second slider move towards the first chute and the second chute under the action of the triangular fixed block, thereby driving the interlocking plate to also move away from the circuit breaker frame, thereby enabling the circuit breaker operating shaft to also rotate and realizing the conversion from the opening state to the closing state, improving the convenience of the operation.

[0018] Optionally, a third chute is opened on the disconnecting switch frame, and the rack is slidably arranged in the third chute.

[0019] By adopting the above technical solution, the rack can be limited within the third sliding groove.

[0020] Optionally, a limiting block is further provided on the disconnector frame. When both the disconnector operating shaft and the circuit breaker operating shaft are in the open state, the limiting block abuts against the connecting rod.

[0021] By adopting the above technical solution, when the first slider and the second slider move towards the direction close to the circuit breaker frame and drive the rack to also move towards the direction close to the circuit breaker frame, it is possible to prevent the rack from moving too far and limit the moving distance of the rack.

[0022] Optionally, four positioning grooves are formed on both sides of the interlocking plate, and a positioning rod is provided in each positioning groove.

[0023] By adopting the above technical solution, the moving direction of the interlocking plate can be limited.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. Through the arrangement of the interlocking rod and the interlocking plate, when both the circuit breaker operating shaft and the disconnector operating shaft are in the closed state, the end of the interlocking rod abuts against the interlocking plate. At this time, the opening and closing can be operated through the circuit breaker operating shaft, but the replacement of the interlocking plate cannot be achieved by operating the disconnector operating shaft, improving the reliability of the interlock;

[0026] 2. Through the arrangement of the first slider, the first spring, the second slider and the second spring, when the circuit breaker operating shaft and the disconnector operating shaft switch from the closed state to the open state, the circuit breaker operating shaft cannot rotate, that is, the replacement of the interlocking plate cannot be achieved by operating the circuit breaker operating shaft, further improving the reliability of the interlock;

[0027] 3. Through the arrangement of the triangular fixing block, when switching from the closed state to the open state, rotating the circuit breaker operating shaft drives the interlocking rod to rotate, so that when the end of the interlocking rod leaves the abutment with the interlocking plate, at this time, the first slider moves towards the direction close to the second slider under the action of the first spring, and the second slider also moves towards the direction close to the first slider under the action of the second spring. Under the action of the triangular fixing block, both the first slider and the second slider move towards the direction close to the circuit breaker frame, driving the interlocking plate to also move towards the direction close to the circuit breaker frame, thereby driving the circuit breaker operating shaft to switch from the closed state to the open state, reducing the difficulty of the operation steps and improving the convenience of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is the overall structural schematic diagram of the embodiment of the present application;

[0029] Figure 2 It is a partial structural schematic diagram of the embodiment of the present application in the open state;

[0030] Figure 3 It is a partial structural schematic diagram of the embodiment of the present application in the closed state;

[0031] Figure 4 It is a sectional structural schematic diagram of the interlocking plate in the embodiment of the present application;

[0032] Figure 5 It is a partial structural schematic diagram of the embodiment of the present application.

[0033] Explanation of reference numerals: 1, circuit breaker frame; 11, circuit breaker operating shaft; 2, disconnector frame; 21, disconnector operating shaft; 22, third chute; 3, interlocking plate; 31, first operating slot; 32, second operating slot; 321, first chute; 322, second chute; 33, positioning slot; 4, interlocking rod; 5, interlocking assembly; 51, first slider; 52, second slider; 53, first spring; 54, second spring; 55, triangular fixing block; 56, gear; 57, rack; 6, positioning rod; 61, limiting ring; 7, connecting rod; 71, first push block; 72, second push block; 8, limiting block. Detailed implementation manners

[0034] The following will Figures 1-5 further describe the present application in detail.

[0035] The embodiment of the present application discloses an operating mechanism of a gas-insulated switchgear with an interlocking function. Referring to Figure 1 , an operating mechanism of a gas-insulated switchgear with an interlocking function includes a circuit breaker frame 1, a disconnector frame 2, an interlocking plate 3, an interlocking rod 4 and an interlocking assembly 5, and a circuit breaker operating shaft 11 provided on the circuit breaker frame 1, and a disconnector operating shaft 21 provided on the disconnector frame 2, which can realize that when the circuit breaker operating shaft 11 and the disconnector operating shaft 21 are in the closed state, only the circuit breaker operating shaft 11 can be operated to perform opening and closing, and the disconnector operating shaft 21 cannot be used to perform opening and closing. When the circuit breaker operating shaft 11 and the disconnector operating shaft 21 are both in the open state, only the disconnector operating shaft 21 can be operated to perform opening and closing, and the circuit breaker operating shaft 11 cannot be used to perform opening and closing, improving the reliability of the interlock.

[0036] Referring to Figure 1 and Figure 3, one end of the interlocking plate 3 close to the circuit breaker operating shaft 11 is provided with a first operating groove 31. Both the interlocking rod 4 and the circuit breaker operating shaft 11 are located in the first operating groove 31. The interlocking rod 4 is fixedly arranged on the circuit breaker operating shaft 11 and fixedly connected to the circuit breaker operating shaft 11. When the circuit breaker operating shaft 11 rotates, it can drive the interlocking rod 4 to rotate together. And one end of the interlocking rod 4 away from the circuit breaker operating shaft 11 is semicircular. At this time, it is in the closing state, and one end of the interlocking rod 4 away from the circuit breaker operating shaft 11 abuts against the interlocking plate 3.

[0037] Refer to Figure 1 and Figure 3 , four positioning grooves 33 are provided on both sides of the interlocking plate 3. The length direction of the positioning grooves 33 is the same as the length direction of the interlocking plate 3. A positioning rod 6 is arranged in each positioning groove 33. Among them, two positioning rods 6 close to the circuit breaker frame 1 are fixedly arranged on the circuit breaker frame 1, and two positioning rods 6 close to the disconnector operating shaft 21 are fixedly arranged on the disconnector frame 2. A limiting ring 61 is fixedly arranged on both sides of the interlocking plate 3 on each positioning rod 6, so as to be able to limit the interlocking plate 3, so that the interlocking plate 3 can only slide along the length direction of the positioning groove 33.

[0038] Refer to Figure 3 , at this time, both the circuit breaker operating shaft 11 and the disconnector operating shaft 21 are in the closing state. One end of the interlocking rod 4 away from the circuit breaker operating shaft 11 abuts against the interlocking plate 3, so that the interlocking plate 3 cannot move towards the direction close to the circuit breaker operating shaft 11; when the circuit breaker operating shaft 11 rotates, it can drive the interlocking rod 4 to rotate, so that the interlocking rod 4 can be separated from the interlocking plate 3, and then the interlocking plate 3 can move.

[0039] Refer to Figure 3 and Figure 4 , the interlocking component 5 includes a first slider 51, a first spring 53, a second slider 52, a second spring 54 and a triangular fixing block 55. A second operating groove 32 is provided at the bottom of the interlocking plate 3. First sliding grooves 321 and second sliding grooves 322 are respectively provided on the side walls on both sides of the second operating groove 32. The first slider 51 is slidably arranged in the first sliding groove 321, and the first spring 53 is located between the first slider 51 and the bottom of the first sliding groove 321. The second slider 52 is slidably arranged in the second slider 52, and the second spring 54 is located between the second slider 52 and the bottom of the second sliding groove 322; the cross sections of the first slider 51 and the second slider 52 are both triangular. The triangular fixing block 55 is arranged on the disconnector frame 2. One sides of the first slider 51 and the second slider 52 away from the circuit breaker frame 1 abut against the triangular fixing block 55. The disconnector operating shaft 21 passes through the triangular fixing block 55 and is arranged on the disconnector frame 2.

[0040] When the breaker operating shaft 11 and the disconnecting switch operating shaft 21 switch from the closed state to the open state, the first slider 51 moves towards the direction close to the second slider 52 under the action of the first spring 53, and the second slider 52 moves towards the direction close to the first slider 51 under the action of the second spring 54 until the first slider 51 and the second slider 52 are in contact with each other. The sides of the first slider 51 and the second slider 52 away from the breaker frame 1 are in contact with the disconnecting switch operating shaft 21, so that the breaker operating shaft 11 cannot rotate, that is, the transposition of the interlocking plate 3 cannot be achieved by operating the breaker operating shaft 11, further improving the reliability of the interlock.

[0041] When the breaker operating shaft 11 is rotated to drive the interlocking rod 4 to rotate, so that the end of the interlocking rod 4 leaves the contact with the interlocking plate 3, at this time, the first slider 51 moves towards the direction close to the second slider 52 under the action of the first spring 53, and the second slider 52 also moves towards the direction close to the first slider 51 under the action of the second spring 54. Under the action of the triangular fixing block 55, both the first slider 51 and the second slider 52 move towards the direction close to the breaker frame 1, driving the interlocking plate 3 to also move towards the direction close to the breaker frame 1, thereby driving the breaker operating shaft 11 to switch from the closed state to the open state, reducing the difficulty of the operation steps and improving the convenience of the operation.

[0042] Refer to Figure 3 and Figure 5 The interlocking assembly 5 further includes a gear 56 and a rack 57. The gear 56 is arranged on the side of the disconnecting switch operating shaft 21 close to the disconnecting switch frame 2, between the triangular fixing block 55 and the disconnecting switch frame 2. The gear 56 is coaxially arranged with the disconnecting switch operating shaft 21. When the disconnecting switch operating shaft 21 rotates, it can drive the gear 56 to rotate together. A third chute 22 is formed on the disconnecting switch frame 2. The length direction of the third chute 22 is the same as the sliding direction of the interlocking plate 3, and the size is adapted to the size of the rack 57. The rack 57 is slidably arranged in the third chute 22 along the length direction of the third chute 22. The rack 57 is adapted to the gear 56. When the gear 56 rotates, it can drive the rack 57 to slide.

[0043] Refer to Figure 2 and Figure 5, on one side of the rack 57 close to the circuit breaker frame 1, a connecting rod 7 is fixedly connected. The length direction of the connecting rod 7 is perpendicular to the length direction of the rack 57. On both sides of the connecting rod 7 close to the gear 56, a first push block 71 and a second push block 72 are fixedly arranged. The first push block 71 abuts against the side of the first slider 51 close to the circuit breaker frame 1, and the second push block 72 abuts against the side of the second slider 52 close to the circuit breaker frame 1; a limiting block 8 is also fixedly arranged on the disconnector frame 2. The limiting block 8 is located on the side of the connecting rod 7 close to the circuit breaker operating shaft 11. When both the disconnector operating shaft 21 and the circuit breaker operating shaft 11 are in the open state, the side of the limiting block 8 away from the circuit breaker operating shaft 11 abuts against the side of the connecting rod 7 close to the circuit breaker operating shaft 11.

[0044] When the disconnector operating shaft 21 is rotated clockwise, it can drive the gear 56 to rotate clockwise together, thereby driving the rack 57 to move away from the circuit breaker operating shaft 11, thereby driving the connecting rod 7, the first push block 71 and the second push block 72 to all move away from the circuit breaker frame 1, thereby driving the first slider 51 and the second slider 52 to move away from the circuit breaker frame 1. At the same time, the first slider 51 and the second slider 52 also move towards the first chute 321 and the second chute 322 under the action of the inclined plane of the fixed triangular block, and respectively enter the first chute 321 and the second chute 322. At the same time, it also drives the interlocking plate 3 to move away from the circuit breaker frame 1, so that the circuit breaker operating shaft 11 can also rotate, realizing the conversion from the open state to the closed state, and improving the convenience of operation.

[0045] The implementation principle of an operating mechanism of a gas-insulated switchgear with an interlocking function in an embodiment of the present application is as follows:

[0046] When both the circuit breaker operating shaft 11 and the disconnector operating shaft 21 are in the closed state, the end of the interlocking rod 4 away from the circuit breaker operating shaft 11 abuts against the interlocking plate 3, so that the interlocking plate 3 cannot move towards the circuit breaker operating shaft 11. At this time, the circuit breaker operating shaft 11 can be used to operate the opening and closing, but the position change of the interlocking plate 3 cannot be realized by operating the disconnector operating shaft 21. If it is necessary to switch to the open state, the circuit breaker operating shaft 11 can be rotated counterclockwise. At this time, the first slider 51 moves towards the second slider 52 under the action of the first spring 53, and the second slider 52 also moves towards the first slider 51 under the action of the second spring 54. Under the action of the triangular fixing block 55, both the first slider 51 and the second slider 52 move towards the circuit breaker frame 1, driving the interlocking plate 3 to also move towards the circuit breaker frame 1, thereby driving the circuit breaker operating shaft 11 to switch from the closed state to the open state, reducing the difficulty of the operation steps and improving the convenience of operation.

[0047] When both the circuit breaker operating shaft 11 and the disconnector operating shaft 21 are in the open state, the sides of the first slider 51 and the second slider 52 away from the circuit breaker frame 1 are in mutual abutment with the disconnector operating shaft 21, so that the circuit breaker operating shaft 11 cannot rotate. At this time, the opening and closing can be operated by operating the disconnector operating shaft 21, but the position change of the interlocking plate 3 cannot be achieved by operating the circuit breaker operating shaft 11. If it is necessary to switch to the closing state, the disconnector operating shaft 21 can be rotated clockwise to drive the gear 56 to rotate clockwise together, thereby driving the rack 57 to move in the direction away from the circuit breaker operating shaft 11, thereby driving the connecting rod 7, the first push block 71 and the second push block 72 to move in the direction away from the circuit breaker frame 1, thereby driving the first slider 51 and the second slider 52 to move in the direction away from the circuit breaker frame 1. At the same time, the first slider 51 and the second slider 52 also move in the direction close to the first chute 321 and the second chute 322 under the action of the inclined surface of the fixed triangular block, and respectively enter the first chute 321 and the second chute 322. At the same time, it also drives the interlocking plate 3 to move in the direction away from the circuit breaker frame 1, so that the circuit breaker operating shaft 11 can also rotate, realizing the conversion from the open state to the closing state, and improving the operation convenience.

[0048] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited by this. Therefore, all equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. An operating mechanism for a gas-insulated switchgear with an interlocking function, comprising a circuit breaker frame (1) and an isolating switch frame (2). The circuit breaker frame (1) is provided with a circuit breaker operating shaft (11) in rotational cooperation, and the isolating switch frame (2) is provided with an isolating switch operating shaft (21) in rotational cooperation. It is characterized in that, It further includes an interlocking plate (3), an interlocking rod (4) and an interlocking component (5). The interlocking rod (4) is arranged on the circuit breaker operating shaft (11), and the interlocking component (5) is arranged on the disconnector operating shaft (21); the interlocking plate (3) is slidably arranged between the circuit breaker frame (1) and the disconnector frame (2). One end of the interlocking plate (3) close to the circuit breaker frame (1) is provided with a first operation groove (31), and both the disconnector operating shaft (21) and the interlocking rod (4) are located in the first operation groove (31); when both the circuit breaker operating shaft (11) and the disconnector operating shaft (21) are in the closed state, the end of the interlocking rod (4) abuts against the interlocking plate (3).

2. The operating mechanism of the gas-insulated switchgear with an interlocking function according to claim 1, characterized in that, The interlocking component (5) includes a first slider (51), a first spring (53), a second slider (52) and a second spring (54). A second operation groove (32) is formed at the bottom of the interlocking plate (3). First chutes (321) and second chutes (322) are respectively formed on the side walls on both sides of the second operation groove (32). The first slider (51) is slidably arranged in the first chute (321), and the first spring (53) is located between the first slider (51) and the bottom of the first chute (321). The second slider (52) is slidably arranged in the second slider (52), and the second spring (54) is located between the second slider (52) and the bottom of the second chute (322).

3. The operating mechanism of the gas-insulated switchgear with an interlocking function according to claim 2, characterized in that, The interlocking component (5) further includes a triangular fixing block (55). The cross-sections of both the first slider (51) and the second slider (52) are triangular. The triangular fixing block (55) is arranged on the disconnector frame (2), and the sides of the first slider (51) and the second slider (52) away from the circuit breaker frame (1) abut against the triangular fixing block (55).

4. The operating mechanism of the gas-insulated switchgear with an interlocking function according to claim 3, characterized in that, The interlocking component (5) further includes a gear (56). The gear (56) is arranged on the side of the disconnector operating shaft (21) close to the disconnector frame (2). The gear (56) is coaxially arranged with the disconnector operating shaft (21). When the disconnector operating shaft (21) rotates, it can drive the gear (56) to rotate together.

5. The operating mechanism of the gas-insulated switchgear with an interlocking function according to claim 4, characterized in that, The interlocking component (5) further includes a rack (57). The rack (57) is slidably arranged on the disconnector frame (2), and the sliding direction is the same as the sliding direction of the interlocking plate (3). The rack (57) is adapted to the gear (56). When the gear (56) rotates, it can drive the rack (57) to slide.

6. The operating mechanism of the gas-insulated switchgear with an interlocking function according to claim 5, characterized in that, A connecting rod (7) is fixedly connected to the side of the rack (57) close to the circuit breaker frame (1). First push blocks (71) and second push blocks (72) are fixedly arranged on both ends of the connecting rod (7) close to the side of the gear (56). The first push block (71) abuts against the first slider (51), and the second push block (72) abuts against the second slider (52).

7. The operating mechanism of the gas-insulated switchgear with an interlocking function according to claim 6, characterized in that, A third sliding groove (22) is formed in the disconnecting switch rack (2), and the rack (57) is slidably arranged in the third sliding groove (22).

8. A operating mechanism of an inflatable cabinet with an interlocking function according to claim 7, characterized in that, A limiting block (8) is further arranged on the disconnecting switch rack (2). When the disconnecting switch operating shaft (21) and the circuit breaker operating shaft (11) are both in the open state, the limiting block (8) abuts against the connecting rod (7).

9. The operating mechanism of an inflatable cabinet with an interlocking function according to claim 1, characterized in that, Four positioning grooves (33) are formed on both sides of the interlocking plate (3), and a positioning rod (6) is arranged in each positioning groove (33).

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