Longitudinal rotating indoor ac metal-enclosed switchgear

Abstract

The utility model discloses a kind of longitudinal spin indoor ac metal-enclosed switchgear, including cabinet, and contact box device, valve gear, longitudinal spin isolation vacuum circuit breaker, inductance device arranged from top to bottom in cabinet, driving assembly is respectively acted on longitudinal spin isolation vacuum circuit breaker and valve gear;By longitudinal spin isolation vacuum circuit breaker and the partial stroke of valve, that is, longitudinal spin isolation vacuum circuit breaker and valve gear share a driving assembly, but the time point of valve being driven by driven assembly precedes longitudinal spin isolation vacuum circuit breaker end or later than longitudinal spin isolation vacuum circuit breaker execution.Such shortens the movement stroke of valve, reduces its space requirement in cabinet, realizes the miniaturization of longitudinal spin indoor ac metal-enclosed switchgear.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment, and in particular to a rotary indoor AC metal-enclosed switchgear. Background Technology

[0002] Indoor AC metal-enclosed switchgear is a common type of electrical equipment, containing various electrical components. With the ever-changing production demands, miniaturization is an important trend, both for saving space and reducing equipment costs. However, existing indoor AC metal-enclosed switchgear has not effectively combined and unified the removability and miniaturization of the main equipment. The ease of installation and maintenance, safety, and operational reliability of the equipment are also not ideal, failing to meet the miniaturization and removability requirements of actual operation. Utility Model Content

[0003] In order to overcome at least one of the defects described in the prior art, the present invention provides a longitudinal rotary indoor AC metal-enclosed switchgear to achieve the purpose of miniaturization and removability of the longitudinal rotary indoor AC metal-enclosed switchgear.

[0004] The technical solution adopted by this utility model to solve its problem is:

[0005] A rotary indoor AC metal-enclosed switchgear includes a cabinet and a contact box device, a valve device, a rotary isolation vacuum circuit breaker, an inductor device, and a drive assembly arranged from top to bottom within the cabinet.

[0006] The drive component acts synchronously on the longitudinal rotary isolation vacuum circuit breaker and the valve device;

[0007] The drive assembly drives the valve device and the longitudinal rotating isolation vacuum circuit breaker to move. After the valve device is fully opened and stops, the longitudinal rotating isolation vacuum circuit breaker continues to move and passes through the valve device to connect to the contact box device and the inductor device respectively. Furthermore, the drive assembly drives the valve device and the longitudinal rotating isolation vacuum circuit breaker to move. After the longitudinal rotating isolation vacuum circuit breaker exits the valve device and disconnects from the contact box device and the inductor device respectively, the longitudinal rotating isolation vacuum circuit breaker moves and resets, and the valve device continues to move and fully closes.

[0008] In summary, the longitudinal rotary indoor AC metal-enclosed switchgear provided by this utility model has the following technical effects:

[0009] By sharing a single drive assembly between the longitudinal rotating vacuum circuit breaker and the valve, the number of components used is reduced, thus decreasing the space occupied by the cabinet and its overall size. Furthermore, the valve's actuation timing either precedes or follows the end of the longitudinal rotating vacuum circuit breaker's operation. This shortens the valve's travel distance, reducing its space requirements within the cabinet and enabling the miniaturization of longitudinal rotating indoor AC metal-enclosed switchgear. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of the longitudinal rotary indoor AC metal-enclosed switchgear according to an embodiment of the present utility model;

[0011] Figure 2 for Figure 1 A schematic diagram of the first internal structure of a longitudinal rotary indoor AC metal-enclosed switchgear;

[0012] Figure 3 for Figure 1 A schematic diagram of the second structure inside a longitudinally rotating indoor AC metal-enclosed switchgear;

[0013] Figure 4 for Figure 1 A schematic diagram of the third structure inside a longitudinal rotary indoor AC metal-enclosed switchgear;

[0014] Figure 5 for Figure 2 A schematic diagram of the closed state of the valve device of a longitudinal rotating indoor AC metal-enclosed switchgear;

[0015] Figure 6 for Figure 5 Enlarged view of point C in the middle;

[0016] Figure 7 for Figure 5 A partial structural diagram of the valve device;

[0017] Figure 8 for Figure 5 A partial structural diagram of the valve device;

[0018] Figure 9 For Figure 2 A schematic diagram of the open state of the valve device of a longitudinal rotary indoor AC metal-enclosed switchgear;

[0019] Figure 10 for Figure 9 Enlarged view of point D in the middle;

[0020] Figure 11 for Figure 9 A partial structural diagram of the valve device;

[0021] Figure 12 for Figure 11 Enlarged view of point A in the middle;

[0022] Figure 13 for Figure 9 A partial structural diagram of the valve device;

[0023] Figure 14 for Figure 2 A schematic diagram of the first structure of a longitudinal rotating indoor AC metal-enclosed switchgear, specifically a longitudinal rotating isolating vacuum circuit breaker.

[0024] Figure 15 for Figure 14 Another structural schematic diagram of a longitudinal rotary isolation vacuum circuit breaker;

[0025] Figure 16 for Figure 14 An exploded schematic diagram of the longitudinal beam of a rotary isolation vacuum circuit breaker;

[0026] Figure 17 for Figure 14 A schematic diagram of the longitudinal beam of a longitudinal rotating isolation vacuum circuit breaker;

[0027] Figure 18 for Figure 14 A schematic diagram of the operating mechanism and frame of a longitudinal rotary isolation vacuum circuit breaker;

[0028] Figure 19 for Figure 14 Side view of the closing motion of the drive mechanism of the longitudinal rotary isolation vacuum circuit breaker;

[0029] Figure 20 for Figure 14 A three-dimensional view of the closing motion of the drive mechanism of a longitudinal rotary isolation vacuum circuit breaker;

[0030] Figure 21 for Figure 20 Enlarged view of point E in the middle;

[0031] Figure 22 for Figure 14 Side view of the opening motion of the drive mechanism of the longitudinal rotary isolation vacuum circuit breaker;

[0032] Figure 23 for Figure 14 A three-dimensional diagram of the opening motion of the drive mechanism of a longitudinal rotary isolation vacuum circuit breaker;

[0033] Figure 24 for Figure 14 A schematic diagram of the positioning component of the drive mechanism of a longitudinal rotary isolation vacuum circuit breaker;

[0034] Figure 25 for Figure 14A schematic diagram of the structure of a longitudinal rotary isolation vacuum circuit breaker;

[0035] Figure 26 for Figure 14 A schematic diagram of the structure of the middle door interlocking assembly and the opening and closing interlocking assembly of the isolation operation interlocking mechanism of the longitudinal rotary isolation vacuum circuit breaker;

[0036] Figure 27 for Figure 14 A schematic diagram of the structure of the middle door interlocking component and grounding mechanism of the isolation operation interlocking mechanism of the longitudinal rotary isolation vacuum circuit breaker;

[0037] Figure 28 for Figure 27 A schematic diagram of the rotating rod seat of the middle door interlocking assembly;

[0038] Figure 29 for Figure 14 A schematic diagram of the assembly of a longitudinal rotary isolation vacuum circuit breaker and its housing;

[0039] Figure 30 for Figure 1 A schematic diagram of the channel component;

[0040] Figure 31 for Figure 30 Enlarged view of point B in the middle;

[0041] Figure 32 for Figure 2 A schematic diagram of the contact box device in the middle;

[0042] Figure 33 for Figure 2 A schematic diagram of the first internal working mechanism of the longitudinal rotary isolation vacuum circuit breaker;

[0043] Figure 34 for Figure 2 A three-dimensional view of the operating mechanism of the longitudinal rotary isolation vacuum circuit breaker;

[0044] Figure 35 for Figure 25 A schematic diagram of the second internal working mechanism of the longitudinal rotary isolation vacuum circuit breaker.

[0045] The meanings of the reference numerals in the attached figures are as follows:

[0046] 10. Cabinet; 20. Contact box assembly; 21. Box body; 201. Ventilation hole; 22. Vertical busbar; 30. Valve assembly; 31. Guide support; 310. Guide slide; 311. Straight groove section; 312. Slot section; 32. Fixed support; 320. Locking part; 321. Baffle; 33. First crank; 34. Second crank; 35. Output shaft; 36. Third crank; 37. Door frame; 38. Valve; 381. Stroke groove; 39. Stroke conversion seat; 391. Lifting part; 3911. Sliding groove; 3912. Lifting groove; 390. Sliding pin; 40. Longitudinal rotary isolation vacuum circuit breaker; 41. Pole assembly; 411. Pole; 412. Longitudinal beam; 4121. Base column; 41210. First clearance hole ; 41211, Insertion hole; 4122, Sealing plate; 41220, Second clearance hole; 41221, Insertion protrusion; 4123, First end plate; 41231, First shaft hole; 4124, Second end plate; 41241, Second shaft hole; 4125, Reinforcing rib; 413, Drive mechanism; 4131, Rotating shaft; 4132, Connecting rod; 41321, Rod body; 41322, Adjusting component; 413221, Stud; 413222, Screw seat; 413223, Locking screw seat; 4133, Connecting arm; 4134, Buffer component; 4135, Hinge ear; 4136, Drive crank arm; 41361, Connecting seat; 41362, Extension arm; 413621, Abutting end; 4137, Rotating wheel; 4138 41381 Drive cam; 413811 Drive end; 4139 Brake block; 41391 Brake end; 41340 Abutment wheel; 414 Isolation motor; 4140 Manual operation contact; 42 Operating mechanism; 421 Housing; 4211 Output hole; 422 Partition; 43 Frame; 431 Support bar; 432 Connecting bar; 433 Vertical bar; 434 Mounting bar; 44 Positioning assembly; 441 Elastic element; 442 Positioning element; 443 Plug-in part; 444 Handle; 45 Isolation operation interlocking mechanism; 451 Middle door interlocking assembly; 4511 First mounting seat; 4512 Blocking fork; 45121 Stop bar; 45122 Return bar; 45 13. Linkage rod; 45131. Abutment rod; 45132. Drive rod; 45133. Counterweight head; 4514. First reset component; 4515. Rotary rod seat; 45151. Guide hole; 4516. Rotary rod shaft; 4517. First rotating rod; 4518. Second rotating rod; 4519. Door latch; 4510. Linkage component; 45101. Door lock rod; 45102. Locking component; 452. Opening and closing interlocking assembly; 4521. Second mounting base; 4522. Blocking crank arm; 45221. Stop arm; 45222. Vertical rod; 4523. Linkage stop component; 4524. Second reset component; 46. Grounding mechanism; 461. First support base; 462. Grounding blocking rod; 463. Blocking plate; 464. Barrier rod;465. Second support base; 50. Inductor; 60. Transmission structure; 61. Sliding seat assembly; 601. Connecting slide; 611. Drive slot; 602. Sliding slide; 62. Guide rail; 63. Connecting component; 631. Hinge hole; 632. Fixing hole; 70. Channel assembly; 71. Cover; 710. Heat dissipation hole; 711. Cover plate; 712. Side plate; 72. Connecting component; 721. Flexible 722. Fixed plate; 723. Extension plate; 80. Support insulator; 90. Grounding switch; 100. Conductive plate; 101. Flat plate; 102. Mounting plate; 110. Lower stationary contact; 120. Cable mounting plate; 130. Drive assembly; 140. Energy storage mechanism; 141. Energy storage motor; 142. Energy storage transmission assembly; 150. Energy storage spring; 160. Opening spring; 170. Rotating fork. Detailed Implementation

[0047] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0048] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying 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.

[0049] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0050] In this utility model, according to existing technology, the valve device 30 is linked with the longitudinal rotating isolation vacuum circuit breaker 40. It is known that the longitudinal rotating isolation vacuum circuit breaker 40 has an isolation state (horizontal state) and an operating state (vertical state). In the operating state, the upper end of the longitudinal rotating isolation vacuum circuit breaker 40 is connected to the contact box device 20 and then to the inductor device 50.

[0051] See Figures 1-4This utility model discloses a vertically rotating indoor AC metal-enclosed switchgear, including a cabinet 10 and a contact box device 20, a valve device 30, a vertically rotating isolation vacuum circuit breaker 40, and an inductor device 50 arranged from top to bottom within the cabinet 10. A drive assembly 130 synchronously acts on the vertically rotating isolation vacuum circuit breaker 40 and the valve device 30. The drive assembly 130 drives the valve device 30 and the vertically rotating isolation vacuum circuit breaker 40 to move. After the valve device 30 is fully opened and stops, the vertically rotating isolation vacuum circuit breaker 40 continues to move and passes through the valve device 30, connecting to the contact box device 20 and the inductor device 50 respectively. Furthermore, after the drive assembly 130 drives the valve device 30 and the vertically rotating isolation vacuum circuit breaker 40 to move, and the vertically rotating isolation vacuum circuit breaker 40 exits the valve device 30 and disconnects from the contact box device 20 and the inductor device 50 respectively, the valve device 30 is fully closed, and the vertically rotating isolation vacuum circuit breaker 40 continues to move and resets.

[0052] Optionally, the valve device 30 includes a guide support 31, a fixed support 32, a first crank 33, a second crank 34, an output shaft 35, a third crank 36, a door frame 37, a valve 38, and a stroke conversion seat 39; the door frame 37 is disposed on the cabinet 10, and the valve 38 is movably disposed on the door frame 37; the guide support 31 is disposed on the cabinet 10, and a guide groove 310 is provided on the guide support 31, which includes a straight groove section 311 and a slot section 312. The straight groove section 311 is disposed along the length direction of the guide support 31, and the slot section 312 is connected to one side of the straight groove section 311; the output shaft 35 is rotatably disposed on the fixed support 32, one end of the first crank 33 is slidably disposed on the guide groove 310, the other end of the first crank 33 is hinged to one end of the second crank 34, the other end of the second crank 34 is connected to one end of the output shaft 35, and the third crank... One end of the third crank 36 is connected to the other end of the output shaft, and the other end of the third crank 36 is the drive end, which acts on the valve 38; the stroke conversion seat 39 is provided with a lifting part 391, which is located between the first crank 33 slidably connected to one end of the guide groove 310 and the fixed support 32; when one end of the first crank 33 is set in the slot section 312, the fixed support 32 is at its maximum distance from the guide support 31. When the guide support 31 continues to move towards the fixed support 32, the first crank 33 drives the second crank 34 to rotate, and the second crank 34 drives the third crank 36 to rotate through the output shaft. When the guide support 31 reaches the predetermined position, the lifting part 391 acts on the first crank 33, and the end of the first crank 33 slidably connected to the guide groove 310 slides from the slot section 312 into the straight groove section 311 and displaces relative to the straight groove section 311. The drive assembly 130 acts on the longitudinal rotary isolation vacuum circuit breaker 40 and the guide support 31 respectively.

[0053] Among them, combined Figures 5-13The guide support 31 is typically a sheet metal structure. Preferably, the guide support 31 of this application is an L-shaped structure, with the guide groove 310 disposed on one side plate of the L-shaped structure, and the other side plate used for connection with external transmission components; the fixed support 32 of this embodiment is disposed on one side of the guide groove 310.

[0054] Specifically, the straight groove section 311 extends along the length of the side plate, and the slot section 312 is located at one end of the straight groove section 311, extending towards the right-angle connection between the two side plates. In particular, in order for one end of the first crank 33 to be able to switch smoothly between the straight groove section 311 and the slot section 312, the included angle between the straight groove section 311 and the slot section 312 should be less than 90°, and the connection point between the two can be rounded.

[0055] For example, the fixed support 32 is a U-shaped support. The output shaft 35 can be a cylindrical shaft, which passes through both ends of the opening of the U-shaped fixed support 32. In this way, the fixed support 32 provides two-point support for the output shaft 35, ensuring the stability of the rotation of the output shaft 35. In addition, the fixed support 32 has a U-shaped sheet metal structure, which has the characteristic of being lightweight.

[0056] One end of the first crank 33 may be provided with a slider or a slide bar, which is slidably disposed in the guide groove 310.

[0057] The second crank 34 has one end hinged to the other end of the first crank 33, and the other end connected to one end of the output shaft 35.

[0058] One end of the third crank 36 is fixedly connected to the end of the output shaft 35 away from the second crank 34.

[0059] In this embodiment, the first crank 33 and the stroke conversion seat 39 are respectively disposed on the inner and outer sides of the side plate where the guide groove 310 of the L-shaped guide support 31 is located. For example, the stroke conversion seat 39 can also be configured as an L-shaped sheet metal structure with reference to the guide support 31.

[0060] In actual use, see Figures 5-8 In the initial state, one end of the first crank 33 is located in the slot section 312, and the other end extends towards the fixed support 32. Taking the height direction of the guide support 31 as a reference, the movement of the guide support 31 is now divided into two stages.

[0061] First stage: The guide support 31 moves linearly towards the fixed support 32, and the slot section 312 abuts against one end of the first crank 33. The rotation of the first crank 33 drives the second crank 34 to rotate. The key point is that when the guide support 31 moves to the predetermined position, the first crank 33, the second crank 34 and the third crank 36 rotate by a predetermined angle. At this time, the lifting part 391 acts on the first crank 33, and the height of the first crank 33 at one end of the slot section 312 rises and turns into the straight slot section 311.

[0062] See Figures 11-13 The second stage: As the guide support 31 continues to move towards the fixed support 32, the end of the first crank 33 located in the slot section 312 is forced to move from the slot section 312 into the straight groove section 311. Thus, the first crank 33 does not obstruct the continued movement of the guide support 31. This can be understood as the end of the first crank 33 located in the guide groove 310 no longer undergoing absolute displacement, but rather relative displacement within the straight groove section 311 as the guide support 31 continues to move. This stage is completed when the guide support 31 stops moving.

[0063] Conversely, during the transition from the second stage to the first stage, the guide support 31 moves away from the fixed support 32 to reset. During this process, one end of the first crank 33 located in the guide groove 310 gradually approaches the slot section 312. When the guide support 31 returns to the predetermined position, the lifting part 391 releases its effect on the first crank 33. The end of the first crank 33 located in the guide groove 310 falls back and re-enters the slot section 312. The guide support 31 returns to its initial position, and the first crank 33, the second crank 34, the output shaft 35, and the third crank 36 rotate in opposite directions and return to their initial state.

[0064] Based on the above, in addition to the linkage between the guide support 31, the first crank 33 and the second crank 34, the motion relationship also includes: the rotation process of the second crank 34 in the first stage will drive the output shaft 35 to rotate on the fixed support 32, thereby driving the third crank 36 to rotate.

[0065] If the drive component used by the above structure is a rotating structure, such as a rotating door with a rotary switch, the drive end of the third crank 36 acts on the door shaft of the rotating door, and pushes the guide support 31 to move under the linkage of the external force source. In the first stage, the entire structure drives the rotating door to open to the designated position. In the second stage, the structure only follows the movement of the external force source and no longer drives the rotating door to move until the external force source reaches the final position.

[0066] Before the first stage described above, the valve 38 is in the closed state, and the longitudinal rotating isolation vacuum circuit breaker 40 is in the isolated state, with the entire longitudinal rotating isolation vacuum circuit breaker 40 located below the valve device 30. Then, under the action of an external force source, the longitudinal rotating isolation vacuum circuit breaker 40 rotates from the isolated state to the operating state, and the valve device 30 enters the first stage. The valve 38 opens under the action of the drive end, and the longitudinal rotating isolation vacuum circuit breaker 40 passes through the door frame 37 from the open position of the valve 38. Importantly, at the start of the second stage, the valve 38 is fully open, allowing the longitudinal rotating isolation vacuum circuit breaker 40 to pass through, but the longitudinal rotating isolation vacuum circuit breaker 40 continues to rotate towards the operating state. At this time, the valve 38 no longer moves synchronously with the longitudinal rotating isolation vacuum circuit breaker 40. In summary, the valve 38 stops moving after opening and allowing the longitudinal rotating isolation vacuum circuit breaker 40 to pass through. Therefore, the valve device 30 does not need to have excessive space for the movement of the valve 38, directly reducing the space of the cabinet 10 and better achieving miniaturization.

[0067] Optionally, the lifting section 391 includes a sliding groove 3911 and a lifting groove 3912. The sliding groove 3911 extends along the length of the stroke conversion seat 39 and is parallel to the straight groove section 311. The lifting groove 3912 is connected to one side of the sliding groove 3911. With the height direction of the guide support 31 as a reference, the straight groove section 311 is located above the sliding groove 3911. The end of the lifting groove 3912 away from the sliding groove 3911 extends towards the straight groove section 311, and the end of the slot section 312 away from the straight groove section 311 extends towards the sliding groove 3911. It also includes a sliding pin 390. One end of the first crank 33 is slidably disposed in the straight groove section 311, the slot section 312, the sliding groove 3911, and the lifting groove 3912 via the sliding pin 390. The sliding pin 390 is located in the slot. Within section 312, as the guide support 31 continues to move toward the fixed support 32, the sliding pin 390 moves in the sliding groove 3911 toward the lifting groove 3912, and the sliding pin 390 is guided from the lifting groove 3912 into the straight groove section 311; and / or also includes a transmission structure 60, which includes a sliding seat assembly 61 and two guide rails 62 disposed on the door frame 37. The sliding seat assembly 61 includes a connecting slide 601; the two guide rails 62 are arranged in parallel, the connecting slide 601 is slidably disposed on one of the guide rails 62, the third crank 36 is inserted into the connecting slide 601, and the connecting slide 601 moves relative to the third crank 36; the valve 38 is slidably disposed on the two guide rails 62, and the connecting slide 601 acts on the valve 38 to drive the valve 38 to slide on the guide rails 62.

[0068] Optionally, a drive groove 611 is provided on the connecting slide 601, and the length direction of the drive groove 611 is set at an angle with the length direction of the guide rail 62; the third crank 36 is inserted into the drive groove 611.

[0069] The third crank 36 has a pin at its drive end, which is inserted into the drive groove 611. A guide rail 62 is located on the side of the fixed support 32 where the pin is located, and the guide rail 62 is parallel to the straight groove section 311. Preferably, there is one connecting slide 601, which is located on one of the guide rails 62 near the fixed support 32. As described above, the third crank 36 is inserted into the drive groove 611 via the pin.

[0070] The key point is that the connecting slide 601 is provided with a drive groove 611. It should be explained that the drive groove 611 is an elongated groove, and its length is related to the stroke length of the valve 38 that needs to be opened or closed. It can be designed according to actual needs and is not limited here. In this embodiment, the drive groove 611 is preferably perpendicular to the guide rail 62 in space.

[0071] As described above, the third crank 36 rotates following the output shaft 35. Therefore, when the pin rotates with the third crank 36, it acts on the side wall of the drive groove 611 to push the connecting slide 601 to move on the guide rail 62. It should be noted that the pin also synchronously generates displacement in the length direction of the drive groove 611. Therefore, this is a process of converting rotation into linear motion. This structure is more compact and saves space. In addition, when the connecting slide 601 slides on the guide rail 62, it naturally drives the valve 38 to move.

[0072] In this embodiment, the valve 38 can be directly connected to the connecting slide 601. The guide support 31 moves repeatedly in the first and second stages, thereby driving the latch to swing back and forth. Therefore, the valve 38 can repeatedly open and close. The structure of this embodiment is well simplified.

[0073] In addition, the angle between the length direction of the drive groove 611 and the length direction of the guide rail 62 can also be other angles greater than 0° and less than 90°, such as 45°, 60°, etc.

[0074] Furthermore, for ease of description, the direction in which the guide support 10 moves towards the fixed support 20 is considered positive, and vice versa. In this embodiment, both the slot section 112 and the lifting groove 1212 are arranged in a positive direction. Specifically, the slot section 112 extends forward and downward from the front end of the straight groove section 111, and the lifting groove 1212 extends forward and upward. In particular, the lower end of the slot section 112 is not higher than the lower side of the sliding groove 1211, and the upper end of the lifting groove 1212 is not lower than the upper side of the straight groove section 111.

[0075] In the initial state, the sliding pin 17 passes through the slot section 112 and the sliding groove 1211. The sliding pin 17 is located at the end of the sliding groove 1211 away from the lifting groove 1212. As the guide support 10 moves forward, the sliding pin 17 eventually abuts against the front wall of the lifting groove 1212. The sliding pin 17 moves upward along the lifting groove 1212 and abuts against the top wall of the straight groove section 111. Thus, the sliding pin 17 enters the straight groove section 111. At this point, the guide support 10 continues to move forward without driving the sliding pin 17. Conversely, when the guide support 10 moves in the opposite direction, and the slot section 112 reconnects to the area below the sliding pin 17, the sliding pin 17 re-enters the slot section 112 under the action of gravity, and then returns to its original position, which will not be described further here.

[0076] Alternatively, the lifting part 121 can be a combination of a lifting mechanism and a sensor. The lifting mechanism can be a rack, pinion, telescopic cylinder, etc. Sensors are provided on the lifting mechanism and in the slot section 112. The lifting mechanism is located on one side of the movement path of the guide support 10. When the guide support 10 moves forward from the initial state to the predetermined position, the sensor on the guide support 10 and the lifting mechanism sense each other. The lifting mechanism lifts the sliding pin 17 from the bottom of the sliding pin 17 upward from the slot section 112 into the straight slot section 111. Conversely, when the guide support 10 moves in the opposite direction and returns to the predetermined position, the sensors sense each other again. At this time, the lifting mechanism retracts and the sliding pin 17 falls back into the slot section 112.

[0077] Optionally, a baffle 321 is provided on the fixed support 32, and a notch is provided on the baffle 321, which forms a locking part 320.

[0078] The notch forms a surrounding structure, allowing the second crank 34 to rotate and engage with it, thus preventing the second crank 34 from wobbling. Additionally, the baffle 321 can be used to secure the support 32. If the second crank 34 requires a larger rotation angle, the notch can be increased in depth to allow for clearance of the second crank 34.

[0079] Optionally, the sliding seat assembly 61 further includes at least two sliding seats 602, and at least one sliding seat 602 is slidably disposed on a guide rail 62, and the valve 38 is slidably disposed on the guide rail 62 via the sliding seat 602.

[0080] One possible implementation is that each guide rail 62 is provided with a sliding seat 602, and the valve is slidably mounted on the guide rail 62 via the sliding seat 602; in other embodiments, to ensure that the valve 38 slides more smoothly on the guide rail 62, each guide rail 62 in this embodiment is provided with two sliding seats 602.

[0081] Optionally, the transmission structure 60 also includes a connecting member 63; one end of the connecting member 63 is rotatably connected to the connecting slide 601, and the other end is slidably connected to the valve 38, with the middle part of the connecting member 63 rotatably mounted on the door frame 37.

[0082] One end of the connecting member 63 is connected to the valve 38. Additionally, a hinge hole 631 is provided in the middle of the connecting member 63, through which a hinge shaft passes and is fixed to the door frame 37. Specifically, the connecting member 63 is a flat rod-shaped structure used to push the valve 38 to slide along the guide rail 62. In this embodiment, the hinge hole 631 is located near the end of the connecting member 63 that connects to the connecting slide 601. Specifically, the distance from the center of the hinge hole 631 to the end of the connecting member 63 that connects to the connecting slide 601 is defined as A, and the distance from the center of the hinge hole 631 to the end of the connecting member 63 that connects to the valve 38 is defined as B. The ratio of A to B is preferably 1:9. The advantage of this ratio is that a small sliding distance of the connecting slide 601 can drive the valve 38 to move a large sliding distance, thus improving the overall compactness of the structure.

[0083] Optionally, the valve 38 is provided with a travel groove 381, the length direction of the travel groove 381 is set at an angle with the length direction of the guide rail 62; one end of the connecting member 63 is rotatably connected to the connecting slide 601, and the other end is slidably connected to the travel groove 381.

[0084] In this embodiment, one end of the connecting member 63 is inserted into the travel groove 381 via a plug rod. Since the plug rod needs to move within the travel groove 381, the length of the travel groove 381 can be designed according to the displacement of the plug rod, and is not limited here. Importantly, the travel groove 381 is preferably located at the middle position of the valve 38.

[0085] In actual use, in the initial state, one end of the first crank 33 is located in the slot section 312, and the other end extends away from the straight slot section 311. The second crank 34 is located below the locking part 320, and the valve 38 is in the closed state.

[0086] In conjunction with the foregoing, during the first stage of the valve device 30, the third crank 36 rotates to push the connecting slide 601 to move toward the valve 38 on the guide rail 62. The connecting slide 601 pushes the connecting member 63 to rotate around the hinge rod, thereby causing the insertion rod at one end of the connecting member 63 to move in the stroke groove 381 and act on the side wall of the stroke groove 381, ultimately opening the valve 38. It should be noted that after the guide support 31 enters the second stage from the first stage, the guide support 31 is no longer linked to the valve 38, and at this time the valve 38 is stationary in the open state.

[0087] Conversely, during the transition from the second stage to the first stage, when the guide support 31 moves to the first stage, the connecting slide 601 drives the connecting member 63 to rotate in the opposite direction, and the connecting member 63 pushes the valve 38 to close.

[0088] In addition, one end of the connector 63 that is slidably connected to the travel groove 381 is provided with an adjustable part, and the connection position between the connector 63 and the adjustable part can be adjusted by an external fastener.

[0089] The adjustable part is used to adjust the connection position of the plug rod on the connector 63. Its purpose is to prevent the plug rod and the travel groove 381 from not being able to be installed in the same way after the connector 63 is installed on the door frame 37. Therefore, the adjustable part is used to make the connection point of the plug rod on the connector 63 adjustable, so as to ensure that the plug rod can be inserted into the travel groove.

[0090] Other adjustable parts include multiple fixing holes 632 provided along the length of the connecting member 63.

[0091] The fixing hole 632 allows for quick insertion and connection of the insertion rod, and convenient adjustment of the rod's position. Additionally, the adjustment section features a slot, within which the insertion rod can move quickly.

[0092] Optional, see Figure 32 The contact box device 20 includes a box body 21 and a vertical busbar 22; the vertical busbar 22 is disposed on the top of the box body 21, the width direction of the vertical busbar 22 is parallel to the height direction of the box body 21, and the bottom side of the vertical busbar 22 extends into the box body 21.

[0093] The outer structure of the housing 21 is typically square or similar to a square, with a hollow center and an open bottom. As described above, when the longitudinal rotating isolation vacuum circuit breaker 40 is in operation, its upper end rotates from the bottom of the housing 21 into the interior of the housing 21 and connects to the vertical busbar 22.

[0094] Specifically, in this embodiment, the vertical busbar 22 is a thin plate structure; an installation groove is provided in the top extension direction of the box 21. In particular, the two ends of the installation groove are open ends, and the bottom is connected to the inside of the box 21; after the vertical busbar 22 is snapped into the installation groove, the lower edge of the vertical busbar 22 extends into the box 21, and the two ends protrude from the two ends of the installation groove.

[0095] There are three contact box devices 20, with the three boxes 21 arranged side by side in the cabinet 10 and located on top of the door device 30. See also... Figure 2Alternatively, in embodiment 4, the vertical busbars 22 are arranged front and back within the cabinet 10. Compared to existing contact box devices, the three-phase busbars of ordinary contact box devices are typically supported by insulators, and the middle phases are installed in a staggered manner due to insulation requirements. This is especially true in busbar structures arranged in a rear-middle-front configuration, which increases the width of the longitudinally rotating indoor AC metal-enclosed switchgear and makes installation difficult.

[0096] Optionally, a first heat dissipation hole 201 is provided on the top surface of the box 21.

[0097] The first heat dissipation hole 201 penetrates the top surface of the housing 21 to connect to the interior of the housing 21, and the first heat dissipation hole 201 is arranged along the length of the mounting groove. Specifically, in this embodiment, at least one through hole is provided on the side wall of the first heat dissipation hole 201 near the mounting groove. The through hole connects the mounting groove and the first heat dissipation hole 201. The bolt passes through the through hole from the first heat dissipation hole 201 and abuts against the side of the vertical busbar 22. The first heat dissipation hole 201 and the vertical busbar 22 are arranged together on the top of the housing 21, and the first heat dissipation hole 201 effectively and quickly dissipates the heat generated by the vertical busbar 22.

[0098] Optional, see below Figure 14 or Figure 15 The longitudinal rotary isolation vacuum circuit breaker 40 includes a pole assembly 41, an operating mechanism 42, and a frame 43; the cabinet 10 is provided with an installation cavity communicating with the outside; the frame 43 is movably disposed in the installation cavity and moves along the depth direction of the installation cavity, and has a working position and a maintenance position in the installation cavity; the pole assembly 41 and the operating mechanism 42 are disposed on the frame 43 and move out of or into the installation cavity with the movement of the frame 43; when the frame 43 is pushed into the installation cavity and reaches the working position, the pole assembly 41 and the operating mechanism 42 enter and are hidden in the installation cavity.

[0099] Specifically, the frame 43 includes two parallel support bars 431 and a connecting bar 432; both ends of the connecting bar 432 are connected to the ends of the two support bars 431 that are close to each other. Alternatively, the frame 43 includes two parallel support bars 431, a connecting bar 432, and two vertical bars 433; both ends of the connecting bar 432 are connected to the ends of the two support bars 431 that are close to each other, the lower ends of the two vertical bars 433 are connected to the ends of the two support bars 431 that are close to each other, and both ends of the connecting bar 432 are connected to the upper ends of the two vertical bars 433; wherein, the operating mechanism 42 is disposed on the two support bars 431, the support bars 431 are disposed on the cabinet 10, and the pole assembly 41 rotatably mounts the operating mechanism 42, which is used to connect the upper and lower parts to the contact box device 20 and the inductor device 50, respectively.

[0100] The operating mechanism 42 is equipped with various operating mechanisms. The pole post assembly 41 is located on one side of the operating mechanism 42. Two support bars 431 and one connecting bar 432 form a U-shaped support structure. Both the operating mechanism 42 and the pole post assembly 41 are mounted on the aforementioned support. In this embodiment, the pole post assembly 41 and the operating mechanism 42 are mounted on the frame 43. The support bars 431 and the connecting bar 432 of the frame 43 can be made of structural steel, which has higher strength and provides a stable support.

[0101] Furthermore, based on the above, the frame 43 includes two vertical bars 433, which are positioned at the top of the support bar 431. Compared to the aforementioned embodiment, this form a spatial support structure, where the spatial support pole assembly 41 and the operating mechanism 42 form a spatial enclosure, improving the stability of the support. In this embodiment, the operating mechanism 42 is located at the end of the support bar 431 away from the connecting bar 432.

[0102] Furthermore, a grounding element is provided on the support bar 431. The grounding element is usually a grounding metal plate. The grounding element protrudes from the outside of the support bar 431. There is an extension bar in the cabinet 10. The bottom end of the extension bar is connected to the bottom of the cabinet 10. When the support bar 431 reaches the working position, the grounding element contacts the top end of the extension bar.

[0103] Optionally, it also includes two mounting strips 434, which are respectively disposed on two support strips 431. The mounting strips 434 extend along the direction of the vertical strip 433, and the operating mechanism 42 is fixed to the mounting strips 434 by bolts.

[0104] The mounting strip 434 is disposed at the top of the support strip 431. Preferably, the mounting strip 434 is located at the end of the support strip 431 away from the connecting strip 432. The mounting strip 434 can be used to fix the operating mechanism 42.

[0105] Optionally, the two support bars 431 are movably disposed in the mounting cavity and move along the depth direction of the mounting cavity, and have a working position and a maintenance position in the mounting cavity; the pole assembly 41 and the operating mechanism 42 follow the movement of the support bars 431 to exit or enter the mounting cavity; when the support bars 431 are pushed into the mounting cavity and reach the working position, the support bars 431, the connecting bars 432, the vertical bars 433, the pole assembly 41, and the operating mechanism 42 enter and are hidden in the mounting cavity.

[0106] The mounting cavity has an opening at one end, which is located on the side of the cabinet 10. The support bar 431 is located within the mounting cavity; this can be understood as the support bar 431 moving in the width direction (left-right direction) of the cabinet 10. As mentioned above, the pole assembly 41 has a working state and an isolated state. When the pole assembly 41 is in the isolated state, the longitudinal rotating isolation vacuum circuit breaker 40 is pulled out of the mounting cavity. When it reaches its maximum position, it is in the maintenance position, where maintenance work can be performed. It can be understood that when the longitudinal rotating isolation vacuum circuit breaker 40 in the maintenance position is completely pushed in and hidden in the mounting cavity, it reaches the working position.

[0107] Furthermore, taking a square cross-section of the support bar 431 as an example, to ensure the stable movement of the support bar 431, two L-shaped support rails are provided at the bottom of the mounting cavity. The two support rails are arranged with their L-shaped openings facing each other to form a wrapping limit. One support bar 431 is correspondingly set in one support rail, and the support bar 431 can slide in the support rail. More preferably, to reduce the friction between the support bar 431 and the support rail, a roller is provided at the bottom of the support bar 431. For example, two rollers are provided along the length of the support bar 431. The rollers convert the friction between the support bar 431 and the support rail from sliding friction to rolling friction, thereby reducing the movement resistance.

[0108] In summary, in this embodiment, the use of strip support bars 431 and the like as the support structure for the pole assembly 41 and the operating mechanism 42 will not cause any obstruction in the height direction of the cabinet 10, thus facilitating the wiring connection within the indoor AC metal-enclosed switchgear.

[0109] Optional, see below Figure 24 as well as Figure 28 The longitudinal rotary isolation vacuum circuit breaker 40 also includes a positioning component 44. Along the movement direction of the support bar 431, at least one side of the support bar 431 is provided with the positioning component 44. The positioning component 44 includes an elastic element 441 and a positioning element 442. At least one side of the support bar 431 is provided with the positioning element 442. The elastic element 441 is disposed on the operating mechanism 42 and acts on the positioning element 442. A first positioning hole is provided on the inner wall of the mounting cavity. When the support bar 431 reaches the working position, the elastic element 441 provides elastic force to push the positioning element 442 to move and insert into the mounting cavity. The first positioning hole and the positioning element 442 restrict the movement of the support bar 431 along the depth direction of the mounting cavity; and / or, the positioning assembly 44 also includes a connector 443, and the connecting bar 432 is located at the front end of the support bar 431 along the direction of movement of the support bar 431 from the working position to the maintenance position, and the connector 443 is provided on the front side of the connecting bar 432; a second positioning hole is provided on the inner wall of the mounting cavity, and when the support bar 431 reaches the working position, the connector 443 is inserted into the second positioning hole to restrict the movement of the support bar 431 to both sides in the depth direction of the mounting cavity.

[0110] The longitudinal rotating isolation vacuum circuit breaker 40 enters and exits the mounting cavity and has maintenance and working positions at different locations. After reaching the working position, the longitudinal rotating isolation vacuum circuit breaker 40 generally switches to the working state, so the working position of the longitudinal rotating isolation vacuum circuit breaker 40 needs to be locked. Taking the direction from the maintenance position to the working position as a reference direction (at this time, the pole assembly 41 is in front, and the operating mechanism 42 is behind), in this embodiment, the operating mechanism 42 is provided with elastic elements 441 and positioning elements 442 on both sides. The elastic element 441 is a spring, and the positioning element 442 is a cylinder. One end of the cylinder that is inserted into the first positioning hole has a chamfer. The chamfered sidewall acts on the sidewall of the mounting cavity, thereby pushing the elastic element 441 to compress. The chamfered sidewall also interacts with the sidewall of the first positioning hole. Under the action of external force, the positioning element 442 can disengage from the first positioning hole. In addition, a connector 443 is provided at the front end of the frame 43. The connector 443 is also cylindrical, and the front end is preferably pointed so as to be easily inserted into the second positioning hole. The first positioning hole and the second positioning hole mentioned above can both be provided on the inner wall of the cabinet 10.

[0111] Preferably, the installation relationship between the elastic element 441 and the positioning element 442 can be as follows: The operating mechanism 42 has inlet and outlet holes on both sides for the positioning element 442 to enter and exit. Along the axial direction of the inlet and outlet holes, a support plate is provided in the operating mechanism 42. The positioning element 442 passes through both the support plate and the inlet and outlet holes. Additionally, the cylinder has two sets of protrusions. The first set of protrusions is located between the support plate and the inlet / outlet holes, and the second set of protrusions is located on the side of the support plate away from the inlet / outlet holes. The elastic element is sleeved on the positioning element 442 and located between the first set of protrusions and the support plate. In summary, when the positioning element 442 moves inward into the operating mechanism 42, the first set of protrusions compresses the elastic element 441. Conversely, the compressed elastic element 441 releases and pushes the first set of protrusions, thereby propelling it outward. Here, the second set of protrusions is used to prevent the positioning element 442 from falling out of the inlet / outlet holes under the action of the elastic element 441.

[0112] Furthermore, as mentioned above, the positioning member 442 is compressed by the inner wall of the mounting cavity or the inside of the first positioning hole to move and retract toward the operating mechanism 42. In addition, to facilitate the retraction movement of the positioning member 442 toward the operating mechanism 42, this embodiment also provides a handle 444. Specifically, the operating mechanism 42 is provided with a control groove on the side away from the pole assembly 41. The control groove is horizontally arranged and the positioning members 442 are at the same height. The two ends of the handle 444 are respectively connected to two sets of protrusions on a positioning frame and exposed outside the operating mechanism 42. In this way, it is more convenient to control the positioning member to exit the first positioning hole through the handle 444. In addition, the handle 444 can push and pull the entire longitudinal rotary isolation vacuum circuit breaker 40 into or out of the mounting cavity.

[0113] Optional, combined Figure 16 and Figure 17The pole post assembly 41 includes a pole post 411, a longitudinal beam 412, and a drive mechanism 413. The longitudinal beam 412 includes a base post 4121, a sealing plate 4122, a first end plate 4123, and a second end plate 4124. An opening is provided on one side of the pole post 411, and the sealing plate 4122 is disposed at the opening to form an enclosing cavity inside the base post 4121 and the sealing plate 4122. A first shaft hole 41231 is provided on the first end plate 4123, and a second shaft hole 41241 is provided on the second end plate 4124. The first end plate 4123 and the second end plate 4124 are respectively disposed at both ends of the enclosing cavity to close both ends of the enclosing cavity. Along the axial direction of the enclosing cavity, the first… The projections of the shaft hole 41231 and the second shaft hole 41241 are located outside the projection of the enclosing cavity, and the first shaft hole 41231 and the second shaft hole 41241 are coaxially arranged; the operating mechanism 42 and the frame 43 are respectively provided with a mounting post, the two mounting posts are coaxial, the first shaft hole 41231 and the second shaft hole 41241 are each rotatably arranged on a mounting post, and the first shaft hole 41231 and the second shaft hole 41241 are each rotatably sleeved on a mounting post, so as to realize the rotation of the longitudinal beam 412 on the operating mechanism 42; the drive mechanism 413 is arranged in the enclosing cavity and acts on the pole post 411 to control the opening and closing of the pole post 411.

[0114] As is known in the prior art, the pole post 411 and the drive mechanism 413 will not be described further here. The longitudinal rotary indoor AC metal-enclosed switchgear of this embodiment is a three-phase high-voltage switchgear, so the number of pole posts 411 and the number of housings 21 are both three. The three pole posts 411 are arranged along the length of the longitudinal beam 412.

[0115] Optionally, the base post 4121 includes a base plate and a first bent plate and a second bent plate that are disposed opposite each other on both sides of the base plate and extend in the same direction. The extension length of the first bent plate is greater than the extension length of the second bent plate. An opening is formed between the first bent plate and the second bent plate. A closing plate extending towards the second bent plate is provided at the end of the first bent plate away from the base plate. A sealing plate 4122 disposed at the opening is located inside the closing plate. The first bent plate and the sealing plate 4122 are respectively provided with a first clearance hole 41210 and a second clearance hole 41220 for the drive mechanism 413 to pass through and act on the pole post 411. The first clearance hole 41210 and the second clearance hole 41220 are aligned perpendicular to the axial direction of the enclosure cavity. And / or, the first bent plate is provided with an insertion hole 41211, and the sealing plate 4122 is provided with an insertion protrusion 41221 that is inserted into the insertion hole 41211.

[0116] In this embodiment, the focus is on the longitudinal beam 412. The base plate, the first bending plate, and the second bending plate form a U-shaped plate. The base column 4121 can be directly formed by bending the entire plate, thereby improving the overall strength of the base column 4121. The sealing plate 4122 is disposed at the opening of the base column 4121. One side of the sealing plate 4122 is connected to the side of the second bending plate away from the base plate, and the other side is connected to the side of the first bending plate near the second bending plate. At the same time, the sealing plate 4122 is located inside the closing plate, and the sealing plate 4122 and the base plate are parallel to each other. Thus, the base plate, the first bending plate, the second bending plate, the sealing plate, and the closing plate form a square enclosed cavity. The first end plate 4123 and the second end plate 4124 are each closedly disposed at both ends of the square enclosed cavity.

[0117] Specifically, a mounting post is provided on the side wall of the operating mechanism 42 near the pole post 411, and another mounting post is provided at the midpoint of the connecting strip 432, with the two mounting posts facing each other. Thus, the first shaft hole and the second shaft hole are respectively mounted on the mounting posts, with the first shaft hole close to the operating mechanism 42. A reinforcing rib 4125 is provided between the outer sides of the first end plate 4123 and the sealing plate 4122 to connect them; specifically, there are two reinforcing ribs 4125, located on either side of the first shaft hole.

[0118] In addition, the first bending plate is provided with three first clearance holes 41210, and the sealing plate 4122 is provided with three second clearance holes 41220. According to the prior art, the drive mechanism 413 passes through the first clearance holes 41210 and the second clearance holes 41220 and acts on the three pole posts 411 respectively, which will not be elaborated here.

[0119] Optionally, the drive mechanism 413 includes a rotating shaft 4131, a connecting rod 4132, a connecting arm 4133, a buffer 4134, and at least one hinge lug 4135; the connecting rod 4132 is hinged to the rotating shaft 4131 and is arranged radially along the rotating shaft 4131, and the connecting rod 4132 is connected to the pole post 411; one end of the connecting arm 4133 is connected to the rotating shaft 4131, and the other end acts on the buffer 4134; the rotating shaft 4131 and the buffer... Component 4134 is disposed in the operating mechanism 42; the rotating shaft 4131 rotates forward or backward to drive the connecting rod 4132 to reciprocate along its own length direction, wherein, when the rotating shaft 4131 moves in either forward or reverse direction, the buffer component 4134 applies a reverse force to the rotation of the rotating shaft 4131 through the connecting arm 4133; one end of the hinge ear 4135 is hinged to the connecting rod 4132, and the other end is hinged to the rotating shaft 4131.

[0120] In this embodiment, according to the prior art, the transmission module is applied in a longitudinal rotary vacuum circuit breaker; the longitudinal beam 412 is rotatably mounted on the operating mechanism 42; the drive mechanism 413 is mounted in the longitudinal beam 412 and connected to the three-phase poles; the connecting rod 4132 controls the closing and closing of the three-phase poles by controlling the insulating pull rod, which will not be described in detail here.

[0121] In this embodiment, one end of the connecting rod 4132 is hinged to the rotating shaft 4131 and is arranged in the horizontal direction. Preferably, the connecting rod 4132 is located above or below the horizontal plane where the rotating shaft 4131 is located (this embodiment uses the example of above). The significance of this arrangement is that the rotating shaft 4131 drives the linear movement of the connecting rod 4132 through its own rotation. When the connecting rod 4132 is located above or below the horizontal plane where the rotating shaft 4131 is located, the rotating shaft 4131 rotates to a specific angle, especially when the hinge point between the connecting rod 4132 and the rotating shaft 4131 rotates from one side of the rotating shaft 4131 to the same height point on the other side of the rotating shaft 4131. At this point, the vertical movement distance of the hinge point between connecting rod 4132 and rotating shaft 4131 is small, resulting in minimal vertical jump of connecting rod 4132. This ensures the stability of connecting rod 4132's movement and prevents jamming at the connection between connecting rod 4132 and rotating shaft 4131, thus avoiding the rotating shaft 4131 failing to achieve a specific rotation angle. One end of connecting arm 4133 is fixedly mounted on rotating shaft 4131, while the other end is a free end, whose position changes with the rotation of rotating shaft 4131.

[0122] In this embodiment, the initial state is the open state, at which point the free end of the connecting arm 4133 is on one side of the rotating shaft 4131, and the free end is at its lowest point. The buffer 4134 is located below the free end and is in a compressed state. At this time, the hinge point between the connecting rod 4132 and the rotating shaft 4131, and the connecting arm 4133, may be located on the same side of the rotating shaft 4131 or on opposite sides due to the angle of forward and reverse rotation. However, it is certain that in this state, the connecting rod 4132 is in the state closest to the rotating shaft 4131. For ease of description, this is described with the hinge point between the connecting rod 4132 and the rotating shaft 4131, and the connecting arm 4133, located on the same side of the rotating shaft 4131.

[0123] Next, refer to Figure 19 or Figure 20When the shaft 4131 rotates clockwise, the free end of the connecting arm 4133 displaces upward, and the buffer 4134 extends upward along with the connecting arm 4133. The connecting rod 4132 moves away from the shaft 4131, and the connecting rod 4132 closes the circuit breaker via the lower contact operating pole. Once the circuit breaker is closed, the shaft 4131 stops rotating clockwise, the free end of the connecting arm 4133 reaches its highest point, and the buffer 4134 is in an extended state. It should be noted that at this time, the hinge point between the connecting rod 4132 and the shaft 4131, and the connecting arm 4133, are located on opposite sides of the shaft 4131. Furthermore, in this embodiment, the clockwise rotation of the shaft 4131 can be driven by a motor.

[0124] Conversely, if the terminal block trips, refer to [reference needed]. Figure 22 or Figure 23 At this time, the connecting rod 4132 is released, and the connecting rod 4132 returns to the direction close to the rotating shaft 4131. The rotating shaft 4131 reverses (counterclockwise), and the connecting arm 4133 moves from the highest point to the lowest point. At this time, the buffer 4134 provides resistance when the free end rotates downward, thereby providing buffer for the connecting rod 4132 to return to its original position. After the above components return to the initial state, this is the open state. According to the prior art, the rotating shaft 4131 is connected to the opening spring 160. When the rotating shaft 4131 rotates forward, the opening spring 160 is stretched. The opening spring 160 provides the power for the rotating shaft 4131 to reverse through the restoring tension. This will not be elaborated here.

[0125] Optionally, the drive mechanism 413 further includes at least one hinge lug 4135; one end of the hinge lug 4135 is hinged to the connecting rod 4132, and the other end is hinged to the rotating shaft 4131. The connecting rod 4132 is hinged to the rotating shaft 4131 via the hinge lug 4135.

[0126] The hinge ear 4135 has a straight groove structure. Preferably, the length of the hinge ear 4135 is greater than or equal to the diameter of the pivot 4131. This allows the hinge ear 4135 to swing around the pivot 4131 with sufficient length. The relative motion fluctuation between the two ends of the hinge ear 4135 is small, which also reduces the impact on the connecting rod 4132.

[0127] More preferably, there are two hinge ears 4135, which are respectively located on both sides of the connecting rod 4132.

[0128] It can be understood that the two hinge lugs 4135 ensure the connection stability between the connecting rod 4132 and the rotating shaft 4131.

[0129] Optionally, the drive mechanism 413 further includes a drive crank arm 4136, a drive cam 4138, and a brake block 4139; the drive crank arm 4136 includes a connecting seat 41361 and an extension arm 41362, the connecting seat 41361 is disposed on the rotating shaft 4131, the hinge ear 4135 is hinged to the connecting seat 41361, one end of the extension arm 41362 is disposed on the connecting seat 41361, and the other end serves as an abutment end 413621 along the diameter of the rotating shaft 4131. Extending away from the pivot 4131; the drive cam 4138 is rotatably disposed below the abutment end 413621, and one side of the drive cam 4138 is defined as the drive surface 41381. One end of the drive surface 41381 extends away from the rotation center of the drive cam 4138 to serve as the drive end 41381. The drive surface 41381 abuts against the abutment end 413621. The brake block 4139 is rotatably disposed above the extension arm 41362. The brake block 4139 has one end designated as brake end 41391, which faces the top of the extension arm 41362. The drive cam 4138 rotates counterclockwise, causing the extension arm 41362 and the shaft 4131 to rotate clockwise. When the drive end 41381 rotates from its lowest point to its highest point, it abuts against the contact end 413621, which rotates from its lowest point to its highest point. The top of the extension arm 41362 abuts against the brake end 4139. 1. Stop rotating, and the end of the connecting arm 4133 connected to the buffer 4134 is at the highest point; the brake block 4139 rotates counterclockwise, the brake end 41391 acts on the top of the extension arm 41362 and links the extension arm 41362 to rotate counterclockwise, the extension arm 41362 links the rotating shaft 4131 to rotate counterclockwise and the drive cam 4138 to rotate clockwise, until the drive end 41381 and the abutment end 413621 rotate back to their respective lowest points.

[0130] The connecting seat 41361 includes two hinge plates, and one end of the connecting rod 4132 can be directly hinged between the two hinge plates; or, two hinge ears 4135 are correspondingly connected to the two hinge plates.

[0131] For example, the connecting seat 41361 is a square block, and the connecting seat 41361 is disposed in the middle of the rotating shaft 441381. The extension arm 41362 is on the side of the rotating shaft 441381 away from the connecting rod 4132, and extends in a direction away from the connecting rod 4132.

[0132] Based on the foregoing description, in the initial state, the free end of the connecting arm 4133 is located at its lowest point, and the extension arm 41362 is inclined downwards. Preferably, the top surface of the extension arm 41362 is a downwardly inclined surface; the driving surface 41381 is an arc surface. Specifically, according to the prior art, the cam body is a circle, one end of the arc surface is tangent to the outer wall of the circle, and the other end extends outwards, which will not be elaborated here. The brake block 41391 is a strip structure.

[0133] Similarly, at this time, both the abutment end 413621 and the drive end 413811 are at their respective lowest points. In this embodiment, the drive cam 4138 serves as the forward or reverse rotation of the drive shaft 441381. Therefore, the aforementioned extension arm 41362 rotates counterclockwise to lift the extension arm 41361, and the drive end 413811 and the abutment end 413621 contact each other at their respective highest points. At this time, the brake end 413911 abuts against the downward inclined surface to prevent the drive cam 4138 from rotating too much and to avoid the drive cam 4138 and the extension arm 41362 from disengaging. Most importantly, during this process, the extension arm 41361 drives the southeast shaft 441381 to rotate clockwise, thus driving the movement of the connecting rod 4132. Conversely, the counterclockwise rotation of the drive cam 4138 requires the counterclockwise rotation of the brake block 41391 to drive it. At this time, the rotating shaft 441381 rotates counterclockwise, and finally, the drive end 413811 and the abutment end 413621 rotate back to their respective lowest points.

[0134] For example, in this embodiment, the drive cam 4138 and the brake block 41391 can be driven by an existing energy storage mechanism (energy storage motor), because the energy storage mechanism can be driven actively or passively, so as to enable mutual drive switching between the brake block 41391 and the drive cam 4138 as described above.

[0135] Optionally, the drive crank arm 4136 may also include an abutment wheel 41340; the abutment wheel 41340 is rotatably disposed on the abutment end 413621, and the abutment end 413621 acts on the drive cam 4138 through the abutment wheel 41340.

[0136] In the aforementioned process, the contact end 413621 rubs against the driving surface 41381 during the lifting process. Here, the contact wheel 41340 transforms sliding friction into rolling friction, thereby reducing friction.

[0137] Optionally, the drive mechanism 413 may also include a rotating wheel 4137, which is rotatably disposed at one end of the connecting arm 4133 away from the rotating shaft 4131, and one end of the buffer 4134 is connected to the rotating wheel 4137.

[0138] As can be seen from the foregoing, the free end moves in a rotating manner, thus the free end has both lateral and vertical movements. Therefore, the buffer 4134 is movably connected to the connecting arm 4133 through the rotating wheel 4137 to prevent jamming when the buffer 4134 and the free end interact.

[0139] Additionally, the buffer 4134 is an oil buffer. Oil buffers are existing technology and will not be elaborated upon here. It should be noted that oil buffers are characterized by high resistance and good buffering effect. Alternatively, the buffer 4134 can be considered a spring. Specifically, at its highest point, the free end is at its natural length. When the free end rotates downwards, the spring compresses, providing an upward elastic force to resist resistance.

[0140] It should be noted that because the forward and reverse rotation angles of the rotating shaft 4131 are relatively small, the lateral displacement of its free end is relatively small (the free end is always on the same side of the rotating shaft 4131). This ensures that even if the buffer 4134 does not follow the lateral movement, its vertical movement will not cause a jamming problem.

[0141] Optionally, the connecting rod 4132 includes a rod body 41321 and an adjusting member 41322; the adjusting member 41322 includes a stud 413221, a screw seat 413222, and a locking screw seat 413223. One end of the screw seat 413222 is provided with a connecting screw hole, and the other end of the screw seat 413222 is connected to the rod body 41321. One end of the stud 413221 is hinged to the rotating shaft 4131, and the other end is screwed into the connecting screw hole. The locking screw seat 413223 is screwed onto the stud 413221 and is located outside the connecting screw hole. The locking screw seat 413223 spirals towards the screw seat 413222 and abuts against the screw seat 413222. Specifically, the rod body 41321 is hinged to the hinge lug 4135.

[0142] In this embodiment, the outer contour of the locking screw seat 413223 is a regular hexagonal structure, so that the locking screw seat 413223 can be easily rotated by using open-end pliers.

[0143] Optionally, a middle door is movably provided on the cabinet 10 at the position corresponding to the longitudinal rotating isolation vacuum circuit breaker 40. The middle door can be opened or closed to seal or open the mounting cavity. The pole assembly 41 also includes an isolation motor 414 disposed in the operating mechanism 42. The isolation motor 414 acts on the longitudinal beam 412, and the isolation motor 414 is provided with a manual operation contact 4140. The end of the manual operation contact 4140 away from the isolation motor 414 is the external free end. The longitudinal rotating isolation vacuum circuit breaker 40 also includes an isolation operation interlocking mechanism 45. The isolation operation interlocking mechanism 45 includes a middle door interlocking component 451 and a tripping and closing interlocking component 452. Both the middle door interlocking component 451 and the tripping and closing interlocking component 452 are disposed on one side of the external free end. The middle door acts on the middle door interlock assembly 451, and the opening and closing interlock assembly 452 is connected to the drive mechanism 413. When the middle door is open, the middle door interlock assembly 451 blocks the external free end side to prevent the external operating handle from docking with the external free end. When the middle door is closed, the external operating handle acts on the middle door interlock assembly 451 to make the middle door interlock assembly 451 rotate to avoid it, and the external operating handle docks with the external free end. When the pole 411 is closed, the opening and closing interlock assembly 452 blocks the external free end side to prevent the external operating handle from docking with the external free end. When the pole 411 is opened, the external operating handle acts on the middle door interlock assembly 451 to make the middle door interlock assembly 451 rotate to avoid it, and the external operating handle docks with the external free end.

[0144] The central door rotates to position the longitudinal rotating isolation vacuum circuit breaker 40 at the opening of the mounting cavity. After the longitudinal rotating isolation vacuum circuit breaker 40 enters the mounting cavity, the central door can close the opening of the mounting cavity. According to existing technology, the isolation motor 414 controls the forward and reverse rotation of the longitudinal beam 412, and the manual operating contact 4140 is used for connecting and controlling the operating handle. The manual operating contact 4140 is preferably hexagonal. The free end of the manual operating contact 4140 faces the central door (away from the pole post 411), and the central door has an insertion hole for inserting an external operating handle.

[0145] Optional, see below Figure 25 and Figure 26The middle door interlock assembly 451 includes a first mounting base 4511, a blocking fork 4512, and a linkage rod 4513. The first mounting base 4511 is mounted on the operating mechanism 42. The blocking fork 4512 includes a stop bar 45121, which is rotatably mounted on the first mounting base 4511 and rotates horizontally. One end of the stop bar 45121 is located on one side of the external free end. The linkage rod 4513 includes an abutment rod 45131 and a drive rod 45132, which are rotatably mounted on the operating mechanism 42. One end of 5131 is connected to one end of the drive rod 45132, and the abutment rod 45131 and the drive rod 45132 rotate in the vertical direction. The abutment rod 45131 is located on the side of the stop rod 45121 near the manual operation contact 4140. When the middle door is closed, the drive rod 45132 drives the abutment rod 45131 to rotate in the vertical direction. The end of the abutment rod 45131 away from the drive rod 45132 forms a height difference with the stop rod 45121 in the vertical direction to avoid the rotation of the stop rod 45121 in the horizontal direction.

[0146] The first mounting base 4511 is an L-shaped plate, facing downwards. The vertical plate of the L-shaped plate is connected to the operating mechanism 42. The blocking fork 4512 is rotatably mounted on the horizontal plate. Specifically, one end of the stop bar 45121 is rotatably mounted on the horizontal plate of the first mounting base 4511, and the other end extends to cover the free end of the manual operation contact 4140. The linkage rod 4513 rotates vertically. Specifically, the end of the abutment rod 45131 away from the drive rod 45132 rests on the horizontal plate of the first mounting base 4511.

[0147] In this implementation, when the middle door is closed, the inner side of the middle door abuts against the outer side of the drive rod 45132. The drive rod 45132 rotates inward, and the abutment rod 45131 rises upward. After the middle door is fully closed, the abutment rod 45131 and the stop rod 45121 are misaligned. If the longitudinal rotation isolation vacuum circuit breaker 40 is in the open state at this time, both the middle door interlock assembly 451 and the opening / closing interlock assembly 452 can be driven and bypassed by the external operating handle, and the external operating handle can engage with the manual operating contact 4140. Conversely, when the middle door is opened, the inner side of the middle door releases its contact with the drive rod 45132, the drive rod 45132 rotates outward to reset, and the abutment rod 45131 rotates downward to reset.

[0148] Optionally, the central door interlock assembly also includes a first reset member 4514. The first reset member 4514 is disposed on the first mounting base 4511 and acts on the side of the stop lever 45121 near the manual operation contact 4140. During the process of the external operating handle abutting against the stop lever 45121 and engaging with the external free contact, the stop lever 45121 rotates toward the manual operation contact 4140, causing the first reset member 4514 to deform. During the process of the external operating handle retracting and disengaging from the manual operation contact 4140, the first reset member 4514 is released and pushes the stop lever 45121 to reset.

[0149] The first reset member 4514 is a spring, with one end connected to the first mounting base 4511 and the other end connected to the stop lever 45121. When the external operating handle drives the stop lever 45121 to move away, the stop lever 45121 rotates inward and compresses the first reset member 4514. After the external operating handle is removed, the first reset member 4514 drives the stop lever 45121 to return to its original position. In another embodiment, the blocking fork 4512 further includes a return rod 45122, one end of which is connected to one end of the stop rod 45121. The return rod 45122 and the stop rod 45121 form an obtuse angle structure. The connection end of the two is rotatably connected to the transverse plate of the first mounting base 4511. One end of the first reset member 4514 is connected to the first mounting base 4511, and the other end is connected to the return rod 45122. When the stop rod 45121 rotates inward, the first reset member 4514 is extended. After the external operating handle is removed, the first reset member 4514 retracts and pulls the return rod 45122 to drive the stop rod 45121 back to its original position. In the latter embodiment, the return rod 45122 has a larger rotational stroke, which avoids the return rod 45122 having excessive directional obstruction force when the external operating handle is inserted.

[0150] Optionally, the connection angle between the abutment rod 45131 and the drive rod 45132 is an acute angle, and the width of the drive rod 45132 gradually decreases in the direction away from the abutment rod 45131; the linkage rod 4513 also includes a counterweight head 45133, which is disposed at the connection between the abutment rod 45131 and the drive rod 45132.

[0151] In this embodiment, the acute angle between the abutment rod 45131 and the drive rod 45132 is significant because the projection of the center of the drive rod 45132 in the vertical direction is located on the abutment rod 45131. As a result, the linkage rod 4513 tends to rotate towards the first mounting base 4511 under the action of gravity. Its function is that after the middle door is opened, the linkage rod 4513 returns to its original position under the action of gravity, and the abutment rod 45131 automatically falls back onto the first mounting base 4511 without the need for other auxiliary reset components.

[0152] In addition, based on the above, the counterweight head 45133 increases the overall weight of the linkage rod 4513, which is more conducive to the outward rotation of the drive rod 45132.

[0153] Optionally, the central door interlock assembly 451 further includes a lever seat 4515, a lever shaft 4516, a first lever 4517, a second lever 4518, a door latch 4519, a linkage 4510, and a door lock lever 45101; the linkage 4510 is movably mounted on the operating mechanism 42 and connected to the longitudinal beam 412; the lever seat 4515 is mounted on the operating mechanism 42, the lever shaft 4516 is rotatably mounted on the lever seat 4515, the first lever 4517 is mounted at one end of the lever shaft 4516 and connected to the linkage 4510, the second lever 4518 is mounted at the other end of the lever shaft 4516, and the door lock lever 45101... One end is connected to the second rotating rod 4518; the door latch 4519 is provided at the middle door. When the pole post 411 is in the working state and the middle door is in the closed state, the door lock rod 45101 acts on the door latch 4519 to prevent the middle door from opening, and the door latch 4519 abuts against the end of the drive rod 45132 away from the abutment rod 45131 so that the drive rod 45132 avoids the stop rod 45121. If the longitudinal beam 412 rotates to make the pole post 411 change from the working state to the isolated state, the linkage 4510 drives the first rotating rod 4517 to rotate and links the second rotating rod 4518. The door lock rod 45101 is disengaged from the door latch 4519 by the second rotating rod 4518 to allow the middle door to open.

[0154] This embodiment limits the opening of the middle door. In this embodiment, the door latch 4519 is U-shaped, with both ends connected to the inner side of the middle door. As mentioned above, the middle door abuts against the drive rod 45132 via the side of the door latch 4519 away from the middle door. The projections of the first rotating rod 4517 and the second rotating rod 4518 in the horizontal direction are intersecting, ideally perpendicular to each other. According to existing technology, the linkage 4510 is connected to the longitudinal beam 412 through a working state switching device, which is not elaborated here. The bottom end of the door lock rod 45101 is hinged to the second rotating rod 4518 at one end, and the top end is used to interact with the door latch 4519. Specifically, the linkage 4510 is located on the side of the isolation motor 414 where the manual operation contact 4140 is provided. The linkage 4510 moves horizontally, with the pole post 411 in the working state as the initial state. At this time, the linkage 4510 is in the leftmost position, and the top of the door lock rod 45101 is inserted into the door latch 4519, preventing the middle door from being opened. When the pole post 411 rotates towards the isolation position, the rotation of the longitudinal beam 412 drives the linkage 4510 to move to the right through the working state switching device. At this time, the first rotating rod 4517 and the second rotating rod 4518 rotate clockwise, causing the door lock rod 45101 to move downwards and disengage from the door latch 4519, thus allowing the middle door to be opened. Conversely, when the linkage 4510 moves from right to left, the door lock rod 45101 moves upwards and re-inserts into the door latch 4519. Furthermore, to ensure smooth vertical movement of the door lock rod 45101, it can be movably connected to the operating mechanism 42.

[0155] Optional, participate Figure 28 The central door interlock assembly 451 also includes a locking member 45102; the frame 43 is locked and positioned in the mounting cavity; one end of the locking member 45102 is hinged to the other end of the second rotating rod 4518, and the second rotating rod 4518 rotates to drive the locking member 45102 to move away from or towards the frame 43; when the pole post 411 is in the working state, the locking member 45102 acts on the frame 43 to prevent the frame 43 from unlocking from the mounting cavity; when the pole post 411 is in the isolated state, the locking member 45102 releases its action on the frame 43.

[0156] Specifically, one end of the locking member 45102 is hinged to the other end of the second rotating rod 4518. The second rotating rod 4518 rotates to drive the locking member 45102 to move away from or towards the positioning member 442. When the pole post 411 is in the working state, the locking member 45102 acts on the positioning member 442 to lock the positioning member 442 out of the first positioning hole. When the pole post 411 is in the isolation state, the locking member 45102 releases its action on the positioning member 442.

[0157] The locking member 45102 can be a rod. The top end of the locking member 45102 is hinged to the other end of the second rotating rod 4518, and the bottom end is used to interact with the positioning member 442 of the positioning assembly 44. The locking member 45102 also extends and retracts up and down with the rotation of the second rotating rod 4518. In contrast to the locking member 45102 is the aforementioned door lock rod 45101, which is located on the second rotating rod 4518 to achieve the opposite movement of the fire alarm. Therefore, in this embodiment, it is known that after the frame 43 enters the working position, the middle door closes. At this time, the pole post 411 of the isolation position rotates to the working position, and the door lock rod 45101 moves upward into the door latch 4519, preventing the middle door from opening. The locking member 45102 acts downward on the positioning member 442 on the nearest side to prevent the positioning member 442 from retracting towards the middle of the operating mechanism 42, ensuring that the longitudinal rotating isolation vacuum circuit breaker 40 is not easily displaced in the installation cavity. Specifically, the positioning member 442 is provided with an insertion interface, and the locking member 45102 is inserted downward into the notch to prevent the positioning member 442 from retracting into the operating mechanism 42.

[0158] Optional, see below Figure 28 The rotating rod seat 4515 is provided with a guide hole 45151; the locking member 45102 passes through the guide hole 45151 in the middle.

[0159] Referring to the aforementioned door lock rod 45101, it can be movably inserted into the operating mechanism 42 to ensure the stability of the up and down movement. In this embodiment, the locking member 45102 also refers to the door lock rod 45101. The difference is that the guide hole 45151 is set on the rotating rod seat 4515, and the locking member 45102 passes through the guide hole 45151.

[0160] Optional, see below Figure 27 The longitudinal rotary isolation vacuum circuit breaker 40 also includes a grounding mechanism 46, which includes a first support base 461, a grounding blocking rod 462, a blocking plate 463, and a barrier rod 464. The first support base 461 is mounted on the cabinet 10. The grounding blocking rod 462 is movably mounted on the first support base 461 and connected to the grounding switch 90. The operating lever controls the grounding switch 90 to open or close via the grounding blocking rod 462. The blocking plate 463 is mounted on the operating mechanism 42. One end of the blocking plate 463 is hinged to the other end of the first rotating rod 4517. 517 rotates to drive the blocking plate 463 to move. When the pole post 411 is in the working state, the blocking plate 463 enters the movement path of the grounding blocking rod 462 to prevent the grounding switch 90 from closing. When the pole post 411 is in the isolation state, the blocking plate 463 exits the movement path of the blocking plate 463 to allow the grounding switch 90 to close. The blocking rod 464 is movably disposed on the first support base 461 and one end of it is connected to the grounding switch 90. When the grounding switch 90 is closed, the blocking rod 464 blocks the rotation path of the blocking rod 45121 to prevent the blocking rod 45121 from rotating.

[0161] The grounding switch 90 is existing technology. When the longitudinally rotating indoor AC metal-enclosed switchgear 40 is in the isolated state, the grounding switch 90 needs to be grounded to allow maintenance personnel to enter the site; conversely, it is not allowed in the working state. In this embodiment, the grounding blocking rod 462 is used to connect to the grounding switch 90 to operate the opening and closing of the grounding switch 90 under the action of the grounding operating handle. The grounding blocking rod 462 is configured to be movable in the vertical direction. The grounding switch 90 is located on the right side of the central door interlock assembly 451.

[0162] As described above, the state description of this embodiment is as follows: when the blocking plate 463 is in the rightmost position, it enters the movement path of the grounding blocking rod 462; when it is in the leftmost position, it exits the movement path of the grounding blocking rod 462. When the first rotating rod 4517 moves clockwise, the longitudinal rotating isolation vacuum circuit breaker 40 enters the isolation state. At this time, the blocking plate 463 moves from the leftmost position to the rightmost position, and the blocking plate 463 exits the movement path of the grounding blocking rod 462. In this way, the grounding blocking rod 462 can move up and down and interact with the grounding switch 90. Conversely, when the longitudinal rotating isolation vacuum circuit breaker 40 is in the working state, the blocking plate 463 enters the movement path of the grounding blocking rod 462. In this embodiment, the blocking plate 463 is located above the grounding blocking rod 462.

[0163] Furthermore, to prevent accidental operation of the manual operating contact 4140 to rotate the pole to the working state when the grounding switch 90 is closed, in this embodiment, the blocking rod 464 moves up and down with the grounding switch 90. When the grounding switch 90 is closed, the top of the blocking rod 464 enters the rotation path of the stop rod 45121 to prevent the stop rod 45121 from rotating inward, thereby preventing the external operating handle from engaging with the manual operating contact 4140. In this embodiment, the top of the stop rod 45121 is provided with a stop block for abutting against the stop rod 45121. Of course, as mentioned above, the blocking fork 4512 also includes a return rod 45122, so in this embodiment, the blocking rod 464 can abut against the return rod 45122. Conversely, when the grounding switch 90 is opened, the downward movement of the blocking rod 464 allows the return rod 45122 to rotate.

[0164] Optionally, the grounding mechanism 46 may also include a second support 465, on which a through hole is provided, and a blocking plate 463 is slidably inserted into the through hole.

[0165] The second support base 465 is disposed in the operating mechanism 42. The blocking plate 463 has a U-shaped structure consisting of a vertical plate, an upper horizontal plate, and a lower horizontal plate. In this embodiment, the length of the lower horizontal plate is less than that of the upper horizontal plate. The second support base 465 is provided with a U-shaped through hole, which is arranged horizontally. The lower horizontal plate is used to block the grounding blocking rod 462.

[0166] Optionally, the opening and closing interlocking assembly 452 includes a second mounting base 4521, a blocking crank arm 4522, and a linkage stop 4523. The second mounting base 4521 is mounted on the operating mechanism 42. The blocking crank arm 4522 includes a stop arm 45221, which is rotatably mounted on the second mounting base 4521 and rotates in the horizontal direction. One end of the stop arm 45221 is located on one side of the external free end. The linkage stop 4523 is mounted on the operating mechanism 42 and connected to the drive mechanism 413. The linkage stop 4523 rotates in the vertical direction. When the pole 411 is closed, the drive mechanism 413 drives the linkage stop 4523 into the rotation radius of the stop arm 45221 to prevent the end of the blocking crank arm 4522 located on the external free end from rotating towards the manual operation contact 4140.

[0167] In this embodiment, the central operating mechanism 42 of the linkage stop 4523 has the central rotating part of the blocking crank arm 4522 mounted on the second mounting base 4521. The linkage stop 4523 has an L-shaped structure. One end of the linkage stop 4523 can be connected to the drive mechanism 413 via a working state switching device or an existing linkage structure, specifically connected to the rotating shaft 4131 of the drive mechanism 413, which will not be described in detail here. In addition, in this embodiment, one end of the stop arm 45221 and one end of the aforementioned stop lever 45121 are both at the same horizontal height as the external free end, and the vertical distance from both to the external free end is equal. This can be understood as each of these two ends blocking half of the external free end. Therefore, only when both ends are fully unlocked can the external operating handle engage with the external free end.

[0168] The key point of this implementation is that when the pole 411 is in the closed state, the other end of the linkage rod 4513 blocks the rotation path of the other end of the blocking crank arm 4522. Thus, the external operating handle is blocked by one end of the blocking crank arm 4522 and cannot engage with the external free end of the manual operating contact 4140, effectively preventing misoperation. Conversely, when the pole 411 is in the open state, the linkage rod 4513 rotates upwards, leaving the rotation path of the blocking crank arm 4522. At this time, when the external operating handle acts on the end of the blocking crank arm 4522 near the stop lever 45121, the blocking crank arm 4522 can rotate inwards.

[0169] In summary, the external operating handle can only be connected to the external free end when the pole 411 is open, the intermediate door is closed, and the grounding switch 90 is closed. Only then can the external operating handle be pushed inward to engage the stop arm 45221 and the stop lever 45121 with the external free end. Additionally, the blocking crank arm 4522 also includes a vertical rod 45222, which is located at the end of the blocking crank arm 4522 away from the stop lever 45121 and is oriented upwards. Its function is to abut against a plate of the L-shaped linkage stop 4523.

[0170] The opening and closing interlocking assembly 452 also includes a second reset member 4524. The second reset member 4524 is disposed on the second mounting base 4521 and acts on the side of the stop arm 45221 near the manual operating contact 4140. During the process of the external operating handle abutting against the stop arm 45221 and engaging with the external free end, the stop arm 45221 rotates toward the manual operating contact 4140, causing the second reset member 4524 to deform. During the process of the external operating handle retracting and disengaging from the manual operating contact 4140, the second reset member 4524 releases and pushes the stop arm 45221 to reset.

[0171] The second reset component 4524 is a tension spring. One end of the tension spring is connected to the second mounting base 4521, and the other end is connected to the end of the stop arm 45221 near the linkage stop 4523. When the end of the stop arm 45221 near the stop lever 45121 is pushed inward by the external operating handle and rotates inward, the end of the stop arm 45221 near the linkage stop 4523 rotates outward. At this time, the tension spring is stretched. After the external operating handle is removed, the tension spring is pulled back, and the stop arm 45221 is reset. More preferably, the second mounting base 4521 is provided with an anti-rotation component. The anti-rotation component is provided on the second reset component 4524 and located on the side of the stop arm 45221 near the isolation motor 414. The anti-rotation component is provided at the end of the stop arm 45221 near the linkage stop component 4523, so as to prevent the end of the stop arm 45221 near the linkage stop component 4523 from rotating too much inward when the second reset component 4524 pulls the stop arm 45221 to reset.

[0172] To clarify the principle of the forward and reverse rotation of the longitudinal beam 412, a brief explanation is provided here. The isolation motor 414 is a forward and reverse rotating motor, which drives the drive assembly 130. The drive assembly 130 is preferably a lead screw assembly. Specifically, the lead screw assembly includes a lead screw and a lead screw platform. The lead screw is set in the operating mechanism 42 (the isolation motor 414 drives the lead screw to rotate bidirectionally), and its axis is perpendicular to the axis of the longitudinal beam 412. The lead screw platform is set on the lead screw. One end of the longitudinal beam 412 located in the operating mechanism 42 is provided with a rotating fork 170, and the lead screw platform is provided with a plug rod inserted into the rotating fork 170, thus realizing the three-dimensional conversion from linear motion to rotation. In addition, the lead screw platform is connected to the guide support 31. The linkage logic here is that because the pole post 411 passes through the valve 38 when switching between the isolation state and the working state, the valve 38 and the pole post 411 are linked to open or close. The valve 38 and the pole 411 are driven by the same drive component, which reduces the number of components and the space occupied. The above technologies are all existing technologies and will not be elaborated here.

[0173] It should be noted that the aforementioned middle door interlock component 451, the opening and closing interlock component 452, and

[0174] The grounding mechanism 46 achieves mechanical interlocking, which not only improves the reliability of the system, but also achieves integration by combining various structures, thus reducing space occupation.

[0175] Optional, see below Figure 1 and Figure 30 It also includes a channel assembly 70, which includes a cover 71 and a connector 72; a channel outlet is provided on the cabinet 10; the connector 72 is configured as an extension, a second heat dissipation hole 710 is provided on the cover 71, and at least one side of the cover 71 is connected to the edge of the channel outlet through the connector 72; when the cover 71 is subjected to pressure impact from the inside out from the inside of the channel outlet, the connector 72 deforms or displaces to make the cover 71 flip away from the channel outlet.

[0176] In this embodiment, the cover 71 can be a baffle plate or a polyhedron with a regular quadrilateral outer contour. This embodiment uses a regular quadrilateral polyhedron as an example. The channel outlet is located at the top of the cabinet 10. There can be multiple second heat dissipation holes 710, which can be optionally located at any position on the cover 71. In this embodiment, the bottom of the cover 71 has a downward-opening cavity that covers the channel outlet to block it.

[0177] Importantly, the cover 71 is connected to the edge of the channel outlet via the connector 72. Furthermore, due to the extension characteristics of the connector 72 itself, it possesses a degree of freedom relative to the channel outlet; for example, the direction of this freedom includes at least a direction parallel or perpendicular to the channel outlet.

[0178] In this embodiment, a second heat dissipation hole 710 for heat dissipation is provided on the cover 71, and the cover 71 is connected to the edge of the channel outlet via a connector 72. In addition, based on the extensibility of the connector 72, the degree of freedom provided by the extensibility allows the cover 71 to move away from the channel outlet when the internal pressure of the channel outlet increases, providing more pressure relief space for the channel outlet. Furthermore, the channel outlet serves as both an air outlet and a pressure relief port, and the two passages do not need to occupy space within the cabinet 10 for separate layout, effectively compressing the volume of the cabinet 10.

[0179] Optionally, the connector 72 includes a plastic bolt that acts on the cover 71 to connect the cover 71 to the edge of the channel outlet.

[0180] In this design, plastic bolts (preferably nylon, not shown in the figure) pass through the side plate of the cover 71 and are screwed to the edge of the channel outlet. The plastic bolts have certain deformation characteristics; when the pressure inside the channel outlet increases, they push the cover 71 outwards. At this time, the plastic bolts adapt by deforming, or they loosen and displace, creating a gap between the cover 71 and the edge of the channel outlet for pressure relief. Simultaneously, the deformation or loosening of the plastic bolts causes displacement of the corresponding side of the cover 71, thereby relieving pressure from the channel outlet and preventing the cover 71 from deforming due to excessive force. Of course, as mentioned above, at least one side of the cover 71 is connected to the edge of the channel outlet via a connector 72. In practical applications, besides the option of connecting one side of the cover 71 with a connector 72, two or more sides can also be connected and fixed to the channel outlet via connectors 72. It is known that each side connected to the channel outlet via connector 72 will form a gap with the edge of the channel outlet when subjected to internal force; the more gaps there are, the stronger the pressure relief capacity.

[0181] Optionally, the connector 72 also includes a flexible strip 721, one end of which is a relatively free end; the cover 71 includes a first side and a second side arranged opposite to each other, the first side is connected to the edge of the channel outlet by plastic bolts, the relatively free end of the flexible strip 721 is connected to the second side, and the other end is connected to the edge of the channel outlet.

[0182] The flexible strip 721 can be a thin metal strip, such as an aluminum alloy strip, which is required to deform under a specific force, thereby changing the position of the relative free end. Alternatively, the flexible strip 721 can be a nylon strip, etc.

[0183] Example of the use of flexible strip 721: Multiple flexible strips 721 are spaced apart along the length of the second side of the lower part of the cover 71. Specifically, the first side is fixedly connected to the edge of the channel outlet by plastic bolts. Under normal circumstances, the lower side of the cover 71 preferably fits against the edge of the channel outlet, and the second heat dissipation hole 710 dissipates heat outward. Similarly, the second heat dissipation hole 710 can also be used for normal pressure relief. In particular, if the pressure inside the channel outlet increases instantaneously or continuously, the internal air pressure can push the cover 71 away from the channel outlet from the inside out. At this time, in addition to the aforementioned plastic bolts being displaced, the relatively free ends of the flexible strips 721 move with the cover 71, so gaps are generated between the first and second sides and the edge of the channel outlet. This gap also increases the internal space of the channel device, providing pressure relief space. If the cover 71 and the channel outlet are in an up-down position, after pressure relief, the cover 71 can automatically fall back under gravity or return to its original position under the push of an external force. Another function of the flexible strip 721 is that if the plastic bolts come loose, the flexible strip 721 can pull the cover 71 to prevent the cover 71 from being pushed away too far.

[0184] In other embodiments, the aforementioned second side is connected to the edge of the channel outlet via a flexible strip 721. In other embodiments, the lower part of the polyhedron of the regular quadrilateral also includes a third and fourth side disposed opposite to each other. The third and fourth sides can be connected to the edge of the channel outlet via the flexible strip 721 or plastic bolts; the arrangement can be freely combined and is not limited here. Furthermore, the first, second, third, and fourth sides can also be connected to the edge of the channel outlet solely via the flexible strip 721.

[0185] Optionally, the connector 72 may also include a fixing plate 722, wherein the end of the flexible strip 721 on the second side of the cover 71 away from the cover 71 is connected to the edge of the channel outlet through the same fixing plate 722; or, the second side is provided with a fixing plate 722, and the second side is connected to the edge of the channel outlet through the fixing plate 722.

[0186] The fixing plate 722 is used to uniformly connect the end of the flexible strip 721 on the second side of the cover 71 away from the cover 71 to one of its own sides, and the connection is made to the edge of the channel outlet through the fixing plate 722. The fixing plate 722 has a larger contact surface for connection, which is more reliable than directly connecting one end of the flexible strip 721 to the edge of the channel outlet. Of course, in conjunction with the above, if a set of opposite sides of the cover 71 are connected to the edge of the channel outlet, regardless of whether the side is provided with a flexible strip 721, the side can be connected to the edge of the channel outlet through the fixing plate 722. Therefore, the first side in this embodiment can also be provided with a fixing plate 722. The fixing plate 722 is set in the horizontal direction, and the fixing plate 722 of the first side is provided with multiple through holes in the length direction. Plastic bolts pass through the through holes and are screwed to the edge of the channel outlet. The fixing plate 722 of the first side has a larger contact surface with the edge of the channel outlet, which improves the connection sealing performance. In addition, the plastic bolts acting on the fixing plate 722 prevent deformation and damage to the cover 71.

[0187] Optionally, the fixing plate 722 connected to the flexible strip 721 is fixedly connected to the edge of the channel outlet by rigid bolts.

[0188] In this embodiment, the fixing plate 722 has multiple through holes along its length. Rigid bolts (preferably made of metal, not shown in the figure) pass through the through holes and are screwed to the edge of the channel outlet. As can be seen from the foregoing, the flexible strip 721 can pull the cover 71. Therefore, the fixing plate 722 connected to the flexible strip 721 needs to form a stable connection with the edge of the channel outlet. Thus, in this embodiment, the fixing plate 722 is connected to the edge of the channel outlet by rigid bolts.

[0189] Optionally, the connector 72 may also include an extension plate 723; the flexible strips 721 are all connected to the side of the cover 71 through the same extension plate 723.

[0190] The extension plate 723 is located on the outer side of the lower side of the cover 71 (in the above embodiment, the extension plate 723 is located on the second side). The flexible strip 721 is connected to the side of the cover 71 through the extension plate 723. The extension plate 723 can fit the peripheral edge of the channel outlet to ensure the sealing between the lower side of the cover 71 and the edge of the channel outlet under normal pressure conditions.

[0191] Of course, the aforementioned flexible strip 721, fixed plate 722 and extension plate 723 can be said to be integrated. Assuming that the three are metal, multiple through slots are stamped between the fixed plate 722 and the extension plate 723, and a connecting strip with a very small width is formed between two adjacent through slots. The connecting strip forms the aforementioned flexible strip 721. Preferably, the width of the connecting strip is 1mm-5mm and the length is 1nm-10nm.

[0192] Optionally, the cover 71 includes a cover plate 711 and a plurality of side plates 712; the plurality of side plates 712 are arranged around the side of the cover plate 711, and the side plates 712 are connected to the edge of the channel outlet by a connector 72; a second heat dissipation hole 710 is provided on the side plate 712.

[0193] The aforementioned regular quadrilateral polyhedron is composed of the cover plate 711 and four side plates 712 in this embodiment. The aforementioned side refers to the lower side of the side plate 712. Since the cover plate 711 is directly opposite the channel outlet, the second heat dissipation hole 710 in this embodiment is located on the side plate 712 to effectively prevent external dust and other impurities from entering the channel outlet in a straight line.

[0194] Optionally, it also includes a conductive plate 100, on which a supporting insulator 80 and an inductor 50 are disposed opposite each other on the inner wall of the cabinet 10; the conductive plate 100 includes a flat plate 101 and two mounting plates 102 extending in the same direction at both ends of the flat plate 101; the two mounting plates 102 are respectively mounted on the inductor 50 and the supporting insulator 80, and the two mounting plates 102 are located below the flat plate 101, and a lower stationary contact 110 for connecting to the pole post 411 is provided on the top of the flat plate 101.

[0195] As can be seen, each end of the aforementioned pole 411 is provided with a moving contact. In the working state, the moving contact at the top of the pole 411 (upper moving contact) is engaged with the contact box device 20, and the moving contact at the bottom of the pole 411 (lower moving contact) is engaged with the inductor device 50. The inductor device 50 includes a current transformer. As mentioned above, there are three poles 411, and correspondingly, there are also three current transformers in this embodiment.

[0196] In practice, the flat plate 101 and the two mounting plates 102 extending in the same direction at both ends of the flat plate 101 form a U-shaped conductive plate 100. The mounting plates 102 are specifically designed to connect with the supporting insulator 80 and the current transformer, thereby improving the overall installation reliability of the conductive plate 100.

[0197] Optionally, a cable mounting plate 120 is also included; the cable mounting plate 120 is disposed on the side of the inductor 50 away from the cabinet 10, and one end of the cable mounting plate 120 is arranged toward the bottom of the cabinet 10 and extends directly below the inductor 50.

[0198] In this embodiment, the current transformer is used to connect to the external cable, which is connected to the external cable via a cable mounting plate 120. Specifically, the cable mounting plate 120 has two bends in the middle, resulting in two parallel plate surfaces at both ends. The cable mounting plate 120 is arranged from top to bottom within the cabinet 10. The upper plate surface connects to the current transformer, while the lower plate surface is positioned directly below the current transformer. The lower plate surface is positioned directly below the current transformer because, in this embodiment, the grounding mechanism 46 is located diagonally below and opposite the current transformer. This allows the lower plate surface of the cable mounting plate 120 to avoid directly below the current transformer, maximizing the horizontal proximity of the grounding mechanism 46 to the current transformer. This reduces the front-to-back dimensions of the cabinet 10, thereby achieving miniaturization of the vertically rotating indoor AC metal-enclosed switchgear. Furthermore, the cable mounting plate 120 is connected to the abutment switch 160 via a metal plate.

[0199] Optional, see below Figures 33-35 It also includes an energy storage mechanism 140; the operating mechanism 42 includes a housing 421 and two partitions 422, the two partitions 422 being spaced apart along the length of the housing 421 to divide the interior of the housing 421 into a first space, a second space, and a third space arranged sequentially, and an output hole 4211 for communicating the second space with the outside is provided on the side wall of the housing 421; the energy storage mechanism 140 is disposed at the bottom inside the housing 421 and is disposed through at least the third space and the second space along the length of the housing 421, and one end of the longitudinal beam 412 passes through it. The output hole 4211 is located within the housing 421. The drive assembly 130 is disposed within the housing 421 and extends through the third and second spaces at least along the length of the housing 421. The drive assembly 130 is located above the output hole 4211 and acts on the longitudinal beam 412. The energy storage mechanism 140 and the rotating shaft 4131 are rotatably disposed on the two partitions. The connecting rod 4132 passes through the output hole 4211 and extends to the outside of the housing 421. The rotating shaft 4131 is located between the drive assembly 130 and the output hole 4211, and the rotating shaft 4131 is located below the drive assembly 130.

[0200] This embodiment aims to achieve a modular arrangement within the operating mechanism 42, thereby reducing the overall volume of the operating mechanism 42 and miniaturizing the longitudinally rotating indoor AC metal-enclosed switchgear. In this embodiment, the spatial structure is optimized to facilitate operator observation of the movement of the pole 411. Furthermore, the components are arranged laterally, thus allowing the longitudinally rotating indoor AC metal-enclosed switchgear to have a smaller longitudinal dimension.

[0201] Specifically, the energy storage mechanism 140 typically includes an energy storage motor 141 and an energy storage transmission assembly 142. The energy storage motor 141 and the energy storage transmission assembly 142 are connected and respectively located in a third space and a second space. The energy storage transmission assembly 142 acts on the drive mechanism 413. This connection relationship is prior art and will not be elaborated here. Importantly, the energy storage motor 141 and the energy storage transmission assembly 142 are arranged laterally at the bottom of the housing 421. The bottom end of the energy storage spring 150 is connected to one end of the transmission assembly 142 and extends longitudinally. The upper end of the energy storage spring 150 is connected to the inside of the housing 420. It is known that the energy storage spring 150 is used to prepare for energy storage when the drive mechanism 413 is closed.

[0202] Specifically, it should be noted that the top of the linkage rod 4513 of this utility model passes through and protrudes from the top of the housing 421, and the latch 4519 acts on the part of the linkage rod 4513 located outside the housing 421; a step is provided on the top of the housing 421 near the pole post 411, and the guide support 31, fixed support 32, first crank 33, second crank 34, output shaft 35 and third crank 36 of the valve device 30 are arranged in this step. Importantly, the guide support 31 is an L-shaped bent plate, and the horizontal plate of the L-shaped bent plate A limiting groove is provided along its length, and a T-shaped block is inserted into the limiting groove to limit the L-shaped bent plate on the housing 421. Note that the L-shaped bent plate can slide along the length direction (left and right) of the housing 421. Therefore, it can be known that the aforementioned pin is inserted into the drive groove 611, and the pin and the connecting slide 601 can be directly separated. That is, when the longitudinal rotation isolation vacuum circuit breaker 40 is in the working position, the pin is inserted into the drive groove 611; when the longitudinal rotation isolation vacuum circuit breaker 40 is in the maintenance position, the pin is disengaged from the drive groove 611. As mentioned above, the stroke conversion seat 39 is located on one side of the guide support 31. In order to avoid the stroke conversion seat 39 occupying unnecessary space, in this embodiment, the stroke conversion seat 39 can be used as a side plate of the housing 421 near the guide support 31. In this way, the stroke conversion seat 39 is part of the housing 421 and can also be used to act on the sliding pin 390.

[0203] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A longitudinal rotary indoor AC metal-enclosed switchgear, characterized in that, It includes a cabinet (10), and a contact box device (20), a valve device (30), a vertical rotating isolation vacuum circuit breaker (40), an inductor device (50) and a drive assembly (130) arranged from top to bottom within the cabinet (10). The drive assembly (130) acts synchronously on the longitudinal rotary isolation vacuum circuit breaker (40) and the valve device (30). The drive assembly (130) drives the valve device (30) and the longitudinal rotating isolation vacuum circuit breaker (40) to move. After the valve device (30) is fully opened and stopped, the longitudinal rotating isolation vacuum circuit breaker (40) continues to move and passes through the valve device (30) to be connected to the contact box device (20) and the inductor device (50) respectively. The drive assembly (130) drives the valve device (30) and the longitudinal rotating isolation vacuum circuit breaker (40) to move. After the longitudinal rotating isolation vacuum circuit breaker (40) exits the valve device (30) and disconnects from the contact box device (20) and the inductor device (50) respectively, the longitudinal rotating isolation vacuum circuit breaker (40) moves and resets, and the valve device (30) continues to move and is fully closed.

2. The longitudinal rotary indoor AC metal-enclosed switchgear according to claim 1, characterized in that, The valve device (30) includes a guide support (31), a fixed support (32), a first crank (33), a second crank (34), an output shaft (35), a third crank (36), a door frame (37), a valve (38), and a stroke conversion seat (39). The door frame (37) is disposed on the cabinet (10), and the hinged door (38) is movably disposed on the door frame (37); The guide support (31) is provided on the cabinet (10), and the guide support (31) is provided with a guide groove (310). The guide groove (310) includes a straight groove section (311) and a slot section (312). The straight groove section (311) is provided along the length direction of the guide support (31), and the slot section (312) is connected to one side of the straight groove section (311). The output shaft (35) is rotatably mounted on the fixed support (32). One end of the first crank (33) is slidably mounted on the guide groove (310). The other end of the first crank (33) is hinged to one end of the second crank (34). The other end of the second crank (34) is connected to one end of the output shaft (35). One end of the third crank (36) is connected to the other end of the output shaft. The other end of the third crank (36) is the driving end, which acts on the valve (38). The stroke conversion seat (39) is provided with a lifting part (391), which is located between one end of the first crank (33) slidably connected to the guide groove (310) and the fixed support (32). When one end of the first crank (33) is located in the slot section (312), the distance between the fixed support (32) and the guide support (31) is at its maximum. When the guide support (31) continues to move towards the fixed support (32), the first crank (33) drives the second crank (34) to rotate. The second crank (34) drives the third crank (36) to rotate through the output shaft. When the guide support (31) reaches the predetermined position, the lifting part (391) acts on the first crank (33). One end of the first crank (33) is slidably connected to the guide groove (310) and slides from the slot section (312) into the straight groove section (311) and displaces relative to the straight groove section (311). The drive assembly (130) acts on the longitudinal rotary isolation vacuum circuit breaker (40) and the guide support (31), respectively.

3. The longitudinal rotary indoor AC metal-enclosed switchgear according to claim 2, characterized in that, The lifting part (391) includes a sliding groove (3911) and a lifting groove (3912). The sliding groove (3911) extends along the length direction of the stroke conversion seat (39) and is parallel to the straight groove section (311). The lifting groove (3912) is connected to one side of the sliding groove (3911). With reference to the height direction of the guide support (31), the straight groove section (311) is located above the sliding groove (3911), the lifting groove (3912) extends from the end away from the sliding groove (3911) toward the straight groove section (311), and the slot section (312) extends from the end away from the straight groove section (311) toward the sliding groove (3911). It also includes a sliding pin (390), one end of the first crank (33) is slidably disposed in the straight groove section (311), the slot section (312), the sliding groove (3911) and the lifting groove (3912) via the sliding pin (390); Wherein, the sliding pin (390) is located in the slot section (312), and when the guide support (31) continues to move toward the fixed support (32), the sliding pin (390) moves toward the lifting groove (3912) in the sliding groove (3911), and the sliding pin (390) is guided into the straight groove section (311) by the lifting groove (3912). And / or may also include a transmission structure (60) comprising a sliding seat assembly (61) and two guide rails (62) disposed on the door frame (37), the sliding seat assembly (61) comprising a connecting slide (601). The two guide rails (62) are arranged in parallel, the connecting slide (601) is slidably arranged on one of the guide rails (62), the third crank (36) is inserted into the connecting slide (601), and the connecting slide (601) moves relative to the third crank (36); The valve (38) is slidably mounted on the two guide rails (62), and the connecting slide (601) acts on the valve (38) to drive the valve (38) to slide on the guide rails (62).

4. The longitudinal rotary indoor AC metal-enclosed switchgear according to claim 3, characterized in that, The connecting slide (601) is provided with a drive groove (611), and the length direction of the drive groove (611) forms an angle with the length direction of the guide rail (62). The third crank (36) is inserted into the drive slot (611).

5. The longitudinal rotary indoor AC metal-enclosed switchgear according to claim 3, characterized in that, The transmission structure (60) also includes a connecting member (63); One end of the connector (63) is rotatably connected to the connecting slide (601), and the other end is slidably connected to the door (38). The middle part of the connector (63) is rotatably mounted on the door frame (37).

6. The longitudinal rotary indoor AC metal-enclosed switchgear according to claim 5, characterized in that, The valve (38) is provided with a travel groove (381), and the length direction of the travel groove (381) forms an angle with the length direction of the guide rail (62); One end of the connector (63) is rotatably connected to the connecting slide (601), and the other end is slidably connected to the travel groove (381).

7. The longitudinal rotary indoor AC metal-enclosed switchgear according to claim 1, characterized in that, The contact box device (20) includes a box body (21) and vertical busbars (22); The vertical busbar (22) is located at the top of the box (21). The width direction of the vertical busbar (22) is parallel to the height direction of the box (21). The bottom side of the vertical busbar (22) extends into the box (21).

8. The longitudinal rotary indoor AC metal-enclosed switchgear according to claim 7, characterized in that, The top surface of the box (21) is provided with a first heat dissipation hole (201).

9. The longitudinal rotary indoor AC metal-enclosed switchgear according to claim 1, characterized in that, The longitudinal rotary isolation vacuum circuit breaker (40) includes a pole assembly (41), an operating mechanism (42), and a frame (43). The cabinet (10) is provided with an installation cavity that communicates with the outside; The frame (43) is movably disposed in the mounting cavity and moves along the depth direction of the mounting cavity, and has a working position and a maintenance position in the mounting cavity; The pole assembly (41) and the operating mechanism (42) are mounted on the frame (43) and move out of or into the mounting cavity following the movement of the frame (43); When the frame (43) is pushed into the mounting cavity and reaches the working position, the pole assembly (41) and the operating mechanism (42) enter and are hidden in the mounting cavity.

10. The longitudinal rotary indoor AC metal-enclosed switchgear according to claim 9, characterized in that, The pole assembly (41) includes a pole (411), a longitudinal beam (412), and a drive mechanism (413). The longitudinal beam (412) includes a base column (4121), a sealing plate (4122), a first end plate (4123), and a second end plate (4124). An opening is provided on one side of the pole column (411), and the sealing plate (4122) is disposed in the opening to form an enclosed cavity inside the base column (4121) and the sealing plate (4122). The first end plate (4123) is provided with a first shaft hole, so the second end plate (4124) is provided with a second shaft hole. The first end plate (4123) and the second end plate (4124) are respectively provided at both ends of the enclosing cavity to close both ends of the enclosing cavity. Along the axial direction of the enclosing cavity, the projections of the first shaft hole and the second shaft hole are located outside the projection of the enclosing cavity, and the first shaft hole and the second shaft hole are coaxially arranged. The operating mechanism (42) and the frame (43) are respectively provided with a mounting post. The two mounting posts are coaxial. The first shaft hole and the second shaft hole are rotatably disposed on one of the mounting posts. The first shaft hole and the second shaft hole are rotatably sleeved on one of the mounting posts so as to realize that the longitudinal beam (412) rotates on the operating mechanism (42). The drive mechanism (413) is disposed in the enclosed cavity and acts on the pole (411) to control the opening and closing of the pole (411).

11. The longitudinal rotary indoor AC metal-enclosed switchgear according to claim 10, characterized in that, The base column (4121) includes a base plate and a first bent plate and a second bent plate that are disposed opposite to each other on both sides of the base plate and extend in the same direction. The extension length of the first bent plate is greater than the extension length of the second bent plate. The opening is formed between the first bent plate and the second bent plate. A folding plate extending toward the second bent plate is provided at the end of the first bent plate away from the base plate. The sealing plate (4122) provided at the opening is located inside the folding plate; The first bending plate and the sealing plate (4122) are respectively provided with a first clearance hole (41210) and a second clearance hole (41220) for the drive mechanism (413) to pass through and act on the pole post (411), perpendicular to the axial direction of the enclosing cavity, and the first clearance hole (41210) and the second clearance hole (41220) are aligned. And / or, the first bending plate is provided with a plug hole (41211), and the sealing plate (4122) is provided with a plug protrusion (41221) that plugs into the plug hole (41211).

12. The longitudinal rotary indoor AC metal-enclosed switchgear according to claim 10 or 11, characterized in that, The drive mechanism (413) includes a rotating shaft (4131), a connecting rod (4132), a connecting arm (4133), a buffer (4134), and at least one hinge lug (4135). The connecting rod (4132) is hinged to the rotating shaft (4131) and the connecting rod (4132) is arranged radially along the rotating shaft (4131). The connecting rod (4132) is connected to the pole post (411). One end of the connecting arm (4133) is connected to the rotating shaft (4131), and the other end acts on the buffer (4134). The rotating shaft (4131) and the buffer (4134) are disposed in the operating mechanism (42); The rotating shaft (4131) rotates forward or backward to drive the connecting rod (4132) to reciprocate along its own length direction. When the rotating shaft (4131) rotates forward or backward, the buffer (4134) applies a reverse force to the rotation of the rotating shaft (4131) through the connecting arm (4133). One end of the hinge lug (4135) is hinged to the connecting rod (4132), and the other end is hinged to the rotating shaft (4131).

13. The longitudinal rotary indoor AC metal-enclosed switchgear according to claim 12, characterized in that, The drive mechanism (413) also includes a drive crank arm (4136), a drive cam (4138), and a brake block (4139). The drive crank arm (4136) includes a connecting seat (41361) and an extension arm (41362). The connecting seat (41361) is disposed on the rotating shaft (4131), and the hinge ear (4135) is hinged to the connecting seat (41361). One end of the extension arm (41362) is disposed on the connecting seat (41361), and the other end extends radially away from the rotating shaft (4131) as an abutment end (413621). The drive cam (4138) is rotatably disposed below the abutment end (413621), and one side of the drive cam (4138) is defined as the drive surface (41381). One end of the drive surface (41381) extends away from the rotation center of the drive cam (4138) to serve as the drive end (413811). The drive surface (41381) abuts against the abutment end (413621). The brake block (4139) is rotatably disposed above the extension arm (41362), and one end of the brake block (4139) is defined as the brake end (41391). The brake end (41391) is disposed facing the top of the extension arm (41362). The drive cam (4138) rotates counterclockwise and in conjunction with the extension arm (41362) and the rotating shaft (4131) rotate clockwise. When the drive end (413811) rotates from the lowest point to the highest point, it abuts against the abutting end (413621) which rotates from the lowest point to the highest point. The top of the extension arm (41362) abuts against the brake end (41391) and stops rotating. The end of the connecting arm (4133) connected to the buffer (4134) is located at the highest point. The brake block (4139) rotates counterclockwise, the brake end (41391) acts on the top of the extension arm (41362) and drives the extension arm (41362) to rotate counterclockwise, the extension arm (41362) drives the rotating shaft (4131) to rotate counterclockwise and the drive cam (4138) to rotate clockwise, until the drive end (413811) and the abutment end (413621) rotate back to their respective lowest points.

14. The longitudinal rotary indoor AC metal-enclosed switchgear according to claim 12, characterized in that, The drive mechanism (413) further includes a rotating wheel (4137), which is rotatably disposed at one end of the connecting arm (4133) away from the rotating shaft (4131), and one end of the buffer (4134) is connected to the rotating wheel (4137).

15. The longitudinal rotary indoor AC metal-enclosed switchgear according to claim 12, characterized in that, The connecting rod (4132) includes a rod body (41321) and an adjusting member (41322); The adjusting component (41322) includes a stud (413221), a screw seat (413222), and a locking screw seat (413223). One end of the screw seat (413222) is provided with a connecting screw hole, and the other end of the screw seat (413222) is connected to the rod body (41321). One end of the stud (413221) is hinged to the rotating shaft (4131), and the other end is screwed into the connecting screw hole. The locking screw seat (413223) is screwed onto the stud (413221) and located outside the connecting screw hole. The locking screw seat (413223) spirals toward the screw seat (413222) and abuts against the screw seat (413222).

16. The longitudinal rotary indoor AC metal-enclosed switchgear according to claim 12, characterized in that, A middle door is movably provided on the cabinet (10) at the position corresponding to the longitudinal rotary isolation vacuum circuit breaker (40). The middle door can be opened or closed to close or open the mounting cavity. The pole assembly (41) also includes an isolation motor (414) disposed in the operating mechanism (42), the isolation motor (414) acts on the longitudinal beam (412), and the isolation motor (414) is provided with a manual operation contact (4140), the end of the manual operation contact (4140) away from the isolation motor (414) is an external free end; The longitudinal rotary isolation vacuum circuit breaker (40) further includes an isolation operation interlocking mechanism (45), which includes a middle door interlocking component (451) and a tripping and closing interlocking component (452). The middle door interlocking component (451) and the tripping and closing interlocking component (452) are both located on one side of the external free end, and the middle door acts on the middle door interlocking component (451). The tripping and closing interlocking component (452) is connected to the drive mechanism (413). When the middle door is open, the middle door interlock assembly (451) blocks the external free end side to prevent the external operating handle from docking with the external free end; when the middle door is closed, the external operating handle acts on the middle door interlock assembly (451) to make the middle door interlock assembly (451) rotate to avoid it, and the external operating handle docks with the external free end. When the pole (411) is closed, the opening and closing interlocking assembly (452) blocks the external free end side to prevent the external operating handle from connecting with the external free end; when the pole (411) is opened, the external operating handle acts on the middle door interlocking assembly (451) to make the middle door interlocking assembly (451) rotate to avoid it, and the external operating handle connects with the external free end.

17. The longitudinal rotary indoor AC metal-enclosed switchgear according to claim 16, characterized in that, The middle door interlock assembly (451) includes a first mounting base (4511), a blocking fork (4512), and a linkage rod (4513). The first mounting base (4511) is disposed on the operating mechanism (42). The blocking fork (4512) includes a stop bar (45121). The stop bar (45121) is rotatably disposed on the first mounting base (4511) and rotates in the horizontal direction. One end of the stop bar (45121) is disposed on one side of the external free end. The linkage rod (4513) includes an abutment rod (45131) and a drive rod (45132) rotatably disposed on the operating mechanism (42). One end of the abutment rod (45131) is connected to one end of the drive rod (45132). The abutment rod (45131) and the drive rod (45132) rotate in the vertical direction. The abutment rod (45131) is located on the side of the stop bar (45121) close to the manual operation contact (4140). When the middle door is closed, the drive rod (45132) drives the abutment rod (45131) to rotate in the vertical direction. The end of the abutment rod (45131) away from the drive rod (45132) forms a height difference with the stop rod (45121) in the vertical direction to avoid the rotation of the stop rod (45121) in the horizontal direction.

18. The longitudinal rotary indoor AC metal-enclosed switchgear according to claim 17, characterized in that, The middle door interlock assembly also includes a first reset member (4514), which is disposed on the first mounting base (4511) and acts on the side of the stop bar (45121) near the manual operation contact (4140); During the process of the external operating handle abutting against the stop bar (45121) and engaging with the external free contact, the stop bar (45121) rotates toward the manual operating contact (4140) and causes the first reset member (4514) to deform. During the process of the external operating handle retracting and disengaging from the manual operating contact (4140), the first reset member (4514) releases and pushes the stop bar (45121) to reset.

19. The longitudinal rotary indoor AC metal-enclosed switchgear according to claim 18, characterized in that, The connection angle between the abutment rod (45131) and the drive rod (45132) is an acute angle, and the width of the drive rod (45132) gradually decreases in the direction away from the abutment rod (45131). The linkage rod (4513) also includes a counterweight head (45133), which is disposed at the connection between the abutment rod (45131) and the drive rod (45132).

20. The longitudinal rotary indoor AC metal-enclosed switchgear according to claim 17, characterized in that, The middle door interlock assembly (451) also includes a rotating rod seat (4515), a rotating rod shaft (4516), a first rotating rod (4517), a second rotating rod (4518), a door latch (4519), a linkage component (4510), and a door lock rod (45101). The linkage (4510) is movably mounted on the operating mechanism (42) and connected to the longitudinal beam (412); The rotating rod seat (4515) is disposed on the operating mechanism (42), the rotating rod shaft (4516) is rotatably disposed on the rotating rod seat (4515), the first rotating rod (4517) is disposed at one end of the rotating rod shaft (4516), one end of the first rotating rod (4517) is connected to the linkage (4510), the second rotating rod (4518) is disposed at the other end of the rotating rod shaft (4516), and one end of the door lock rod (45101) is connected to one end of the second rotating rod (4518). The door latch (4519) is disposed on the middle door. When the pole post (411) is in the working state and the middle door is in the closed state, the door lock rod (45101) acts on the door latch (4519) to prevent the middle door from opening. The door latch (4519) abuts against the end of the drive rod (45132) away from the abutment rod (45131) so that the drive rod (45132) avoids the stop rod (45121). The longitudinal beam (412) rotates so that the pole post (411) changes from the working state to the isolated state. The linkage (4510) drives the first rotating rod (4517) to rotate and links the second rotating rod (4518). The door lock rod (45101) is disengaged from the door latch (4519) by the second rotating rod (4518) to allow the middle door to open.

21. The longitudinal rotary indoor AC metal-enclosed switchgear according to claim 20, characterized in that, The central door interlock assembly (451) also includes a locking element (45102); The frame (43) is locked and positioned in the mounting cavity; One end of the locking member (45102) is hinged to the other end of the second rotating rod (4518). The second rotating rod (4518) rotates to drive the locking member (45102) to move away from or towards the frame (43). When the pole post (411) is in the working state, the locking member (45102) acts on the frame (43) to prevent the frame (43) from unlocking from the mounting cavity. When the pole post (411) is in the isolated state, the locking member (45102) releases its action on the frame (43).

22. The longitudinal rotary indoor AC metal-enclosed switchgear according to claim 21, characterized in that, The rotating rod seat (4515) is provided with a guide hole (45151); The locking member (45102) is inserted through the guide hole (45151) at its center.

23. The longitudinal rotary indoor AC metal-enclosed switchgear according to claim 20, characterized in that, The longitudinal rotary isolation vacuum circuit breaker (40) also includes a grounding mechanism (46), which includes a first support base (461), a grounding blocking rod (462), a blocking plate (463), and a barrier rod (464). The first support base (461) is set on the cabinet (10), and the grounding blocking rod (462) is movably set on the first support base (461) and connected to the grounding switch (90). The operating lever controls the grounding switch (90) to open or close the circuit through the grounding blocking rod (462). The blocking plate (463) moves on the operating mechanism (42). One end of the blocking plate (463) is hinged to the other end of the first rotating rod (4517). The first rotating rod (4517) rotates to drive the blocking plate (463) to move. When the pole (411) is in the working state, the blocking plate (463) enters the movement path of the grounding blocking rod (462) to prevent the grounding blocking rod (462) from closing. When the pole (411) is in the isolation state, the blocking plate (463) exits the movement path of the blocking plate (463) to allow the grounding switch to close. The barrier bar (464) is movably mounted on the first support base (461) and one end of it is connected to the grounding switch (90). When the grounding switch (90) is closed, the barrier bar (464) blocks the rotation path of the stop bar (45121) to prevent the stop bar (45121) from rotating.

24. The longitudinal rotary indoor AC metal-enclosed switchgear according to claim 23, characterized in that, The grounding mechanism (46) further includes a second support base (465), on which a through hole is provided, and the blocking plate (463) slides through the through hole.

25. The longitudinal rotary indoor AC metal-enclosed switchgear according to claim 16, characterized in that, The opening and closing interlocking assembly (452) includes a second mounting base (4521), a blocking crank arm (4522), and a linkage stop (4523). The second mounting base (4521) is disposed on the operating mechanism (42), the blocking crank arm (4522) includes a stop arm (45221), the stop arm (45221) is rotatably disposed on the second mounting base (4521) and rotates in the horizontal direction, and one end of the stop arm (45221) is disposed on one side of the external free end, the linkage stop (4523) is disposed on the operating mechanism (42) and connected to the driving mechanism (413), and the linkage stop (4523) rotates in the vertical direction; When the pole (411) is closed, the drive mechanism (413) drives the linkage stop (4523) into the rotation radius of the stop arm (45221) to prevent the end of the blocking crank arm (45222) located on the side of the external free end from rotating in the direction of the manual operation contact (4140).

26. The longitudinal rotary indoor AC metal-enclosed switchgear according to claim 25, characterized in that, The opening and closing interlocking assembly (452) further includes a second reset member (4524), which is disposed on the second mounting base (4521) and acts on the side of the stop arm (45221) near the manual operation contact (4140); During the process of the external operating handle abutting against the stop arm (45221) and engaging with the external free, the stop arm (45221) rotates toward the manual operating contact (4140) and causes the second reset member (4524) to deform. During the process of the external operating handle retracting and disengaging from the manual operating contact (4140), the second reset member (4524) releases and pushes the stop arm (45221) to reset.

27. The longitudinal rotary indoor AC metal-enclosed switchgear according to claim 10, characterized in that, It also includes a channel assembly (70), which includes a cover (71) and a connector (72); The cabinet (10) is provided with a passageway exit; The connector (72) is configured as an extension, and the cover (71) is provided with a second heat dissipation hole (710). At least one side of the cover (71) is connected to the edge of the channel outlet through the connector (72). When the cover (71) is subjected to pressure impact from the inside out from the inside of the channel outlet, the connector (72) deforms to cause the cover (71) to flip away from the channel outlet.

28. The longitudinal rotary indoor AC metal-enclosed switchgear according to claim 27, characterized in that, The connector (72) includes a plastic bolt that acts on the cover (71) to connect the cover (71) to the edge of the channel outlet.

29. The longitudinal rotary indoor AC metal-enclosed switchgear according to claim 28, characterized in that, The connector (72) also includes a flexible strip (721), one end of which is a relatively free end; The cover (71) includes a first side and a second side arranged opposite to each other. The first side is connected to the edge of the channel outlet by the plastic bolt. The free end of the flexible strip (721) is connected to the second side, and the other end is connected to the edge of the channel outlet.

30. The longitudinal rotary indoor AC metal-enclosed switchgear according to claim 29, characterized in that, The connector (72) also includes a fixing plate (722), and the end of the flexible strip (721) on the second side of the cover (71) away from the cover (71) is connected to the edge of the channel outlet through the same fixing plate (722); Alternatively, a fixing plate (722) is provided on the second side, and the second side is connected to the edge of the channel outlet through the fixing plate (722).

31. The longitudinal rotary indoor AC metal-enclosed switchgear according to claim 30, characterized in that, The fixing plate (722) connected to the flexible strip (721) is fixedly connected to the edge of the channel outlet by rigid bolts.

32. The longitudinal rotary indoor AC metal-enclosed switchgear according to claim 29, 30 or 31, characterized in that, The connector (72) also includes an extension plate (723); The flexible strips (721) are all connected to the side of the cover (71) through the same extension plate (723).

33. The longitudinal rotary indoor AC metal-enclosed switchgear according to claim 27, characterized in that, The cover (71) includes a cover plate (711) and multiple side plates (712); Multiple side plates (712) are arranged around the side of the cover plate (711), and the side plates (712) are connected to the edge of the channel outlet by the connector (72); The second heat dissipation hole (710) is provided on the side plate (712).

34. The longitudinal rotary indoor AC metal-enclosed switchgear according to claim 27, characterized in that, It also includes a conductive plate (100), and a supporting insulator (80) and the inductor (50) are disposed opposite to each other on the inner wall of the cabinet (10). The conductive plate (100) includes a flat plate (101) and two mounting plates (102) extending in the same direction at both ends of the flat plate (101); the two mounting plates (102) are respectively mounted on the inductor (50) and the supporting insulator (80), the two mounting plates (102) are located below the flat plate (101), and the top of the flat plate (101) is provided with a lower stationary contact (110) for connection with the pole post (411).

35. The longitudinal rotary indoor AC metal-enclosed switchgear according to claim 33, characterized in that, It also includes a cable mounting plate (120); The cable mounting plate (120) is located on the side of the inductor (50) away from the cabinet (10), with one end of the cable mounting plate (120) arranged towards the bottom of the cabinet (10) and extending directly below the inductor (50).

36. The longitudinal rotary indoor AC metal-enclosed switchgear according to claim 12, characterized in that, It also includes energy storage facilities (140); The operating mechanism (42) includes a housing (421) and two partitions (422). The two partitions (422) are spaced apart along the length of the housing (421) to divide the interior of the housing (421) into a first space, a second space and a third space arranged in sequence. An output hole (4211) for communicating the second space with the outside is provided on the side wall of the housing (421). The energy storage mechanism (140) is located at the bottom of the housing (421) and extends through the third space and the second space at least in the length direction of the housing (421). One end of the longitudinal beam (412) passes through the output hole (4211). The energy storage mechanism (140) acts on the drive mechanism (413). The drive assembly (130) is disposed inside the housing (421) and extends through at least the third space and the second space in the length direction of the housing (421). The drive assembly (130) is located above the output hole (4211) and acts on the longitudinal beam (412). The rotating shaft (4131) is rotatably disposed on the two partitions (422). The connecting rod (4132) passes through the output hole (4211) and extends to the outside of the housing (421). The rotating shaft (4131) is located between the drive assembly (130) and the output hole (4211) and is located below the drive assembly (130).

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