Vacuum degree monitoring device for arc extinguish chamber of high-voltage vacuum circuit breaker

Abstract

The invention relates to the technical field of switch detection equipment, in particular to a vacuum degree monitoring device for an arc extinguish chamber of a high-voltage vacuum circuit breaker. According to the technical scheme, the device comprises a vacuum degree tester and a rotating cover connected to the vacuum degree tester through a hinge, and the vacuum degree tester is provided with at least one pair of connecting jacks. Through the design of the rotating cover, the storage box, the connecting wire, the storage mechanism, the locking mechanism, the cover plate mechanism and other structures, the connecting wire is wound around the storage roller, the motor drives the connecting wire to be automatically loosened or wound, manual wire pulling and winding are avoided, and the wiring time is shortened. The second plug is fixed during detection, and only the first plug needs to be pulled for connection, so that the plugging frequency is reduced; during storage, two ends are fixed through a locking mechanism (a clamping hole and a locking groove), and only one end needs to be unlocked in next use, so that interface abrasion caused by frequent plugging is avoided. In addition, the telescopic connecting line adapts to different detection distances, and the sliding cover plate is matched with the switching mechanism to lock the wire rod, so that the wire rod is prevented from falling off and being damaged by dragging, and the safety and portability are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of switch detection equipment, and in particular to a vacuum degree monitoring device for an arc extinguishing chamber of a high-voltage vacuum circuit breaker. Background Art

[0002] The arc extinguishing chamber of a high-voltage vacuum circuit breaker, also known as a vacuum switch, is a core component of medium- and high-voltage power switches. A vacuum tester is commonly used to monitor the vacuum level of a high-voltage vacuum circuit breaker's arc extinguishing chamber. This device is based on the principle of magnetron discharge. By applying a pulsed high voltage between the arc extinguishing chamber contacts and simultaneously generating a synchronous magnetic field using a coil, electrons in spiral motion collide with gas molecules, ionizing them. Based on the proportional relationship between the generated ion current and the vacuum level, and in conjunction with a pre-calibrated corresponding curve, the arc extinguishing chamber vacuum level can be quickly measured, ensuring safe and reliable insulation and arc extinguishing performance. When in use, the vacuum tester is equipped with a pair of independent red and black connecting wires. The red wire is the high-voltage test wire, used to connect to the static contact of the vacuum switch to apply the test high voltage; the black wire is the low-voltage test wire, used to connect to the moving contact to collect the discharge current signal.

[0003] Currently, when devices use red and black cables, because the cables are separated, they must be pulled out one by one and precisely connected to the positive and negative contacts and the ground terminal. This frequently leads to repeated plugging and unplugging when testing multiple devices, causing cables to become tangled and time-consuming interface alignment. This lengthens the single inspection process and significantly reduces batch inspection efficiency. Furthermore, these cables are messy to manage and prone to tangling. Wiring and dragging can easily cause loose interfaces and wear on cables, increasing the risk of poor contact or electrical leakage, impacting operational efficiency and posing safety risks. Summary of the Invention

[0004] The present invention addresses the problem that current devices use separate red and black connecting wires, which require repeated plugging and unplugging when testing multiple devices. This is not only time-consuming and inefficient, but also causes the wires to tangle and wear, increasing the risk of poor contact or leakage. The present invention proposes a vacuum monitoring device for the arc extinguishing chamber of a high-voltage vacuum circuit breaker.

[0005] The technical solution of the present invention is as follows: a vacuum degree monitoring device for an arc extinguishing chamber of a high-voltage vacuum circuit breaker comprises a vacuum degree tester and a rotating cover hingedly connected thereto, the vacuum degree tester being provided with at least one pair of connecting jacks, and further comprising: a storage box fixedly connected to the rotating cover and corresponding to the connecting jacks; a connecting wire placed in the storage box, the interior of the storage box being provided with a storage mechanism for winding the connecting wire; a locking mechanism arranged on the storage mechanism for fixing both ends of the connecting wire; a cover mechanism slidably mounted on the storage box to prevent the connected wire from escaping from the storage box after storage.

[0006] Optionally, the storage mechanism includes a support base fixedly connected to the inner wall of the storage box, a motor is fixedly connected to the interior of the support base, the output shaft of the motor is fixedly connected to a first baffle, and a second baffle corresponding to the first baffle is also provided inside the storage box, and a storage roller supporting the connecting line is fixedly connected to the middle of the second baffle.

[0007] Optionally, the locking mechanism includes a shaft rod arranged in the storage box, one end of the shaft rod is fixedly connected to the second baffle, the inner wall of the storage box is also fixedly connected to the support sleeve, the support sleeve is movably connected to the shaft rod, one end of the connecting wire is fixedly connected to the first plug, and the other end of the connecting wire is movably inserted into the second plug in the connecting jack after passing through the second baffle, a plurality of card holes for inserting the second plug are provided on the shaft rod, and a plurality of locking grooves distributed in a circular array for the first plug to be inserted into are provided on the first baffle.

[0008] Optionally, a retractable connecting wire is provided at one end of the connecting wire close to the second plug.

[0009] Optionally, the cover mechanism includes a sliding groove provided on the storage box, a sliding cover is slidably connected to the interior of the sliding groove, a plurality of linearly arranged tooth grooves are provided on the sliding cover, and a rotating groove connected to the sliding groove is further provided on the storage box, and a switch mechanism is provided inside the rotating groove that automatically engages with the tooth groove.

[0010] Optionally, the switching mechanism includes a support rod fixedly connected in the rotating groove, a rotating rod rotatably connected to the support rod, an end of the rotating rod away from the support rod is fixedly connected to a clamping head that is engaged in the tooth groove, the inner wall of the rotating groove is also fixedly connected to a support plate, a return spring is fixedly connected to the support plate, and the end of the return spring away from the support plate is fixedly connected to the middle part of the rotating rod.

[0011] Optionally, one end of the rotating rod away from the supporting rod is further fixedly connected to a first pull ring.

[0012] Optionally, a second pull ring is fixedly connected to the outer wall of the sliding cover.

[0013] Optionally, a pair of the storage boxes are arranged in a linear shape on the rotating cover.

[0014] Optionally, one end of the sliding cover plate close to the tooth groove is fixedly connected to a limiting block, and an inner wall of one side of the sliding groove is provided with a limiting groove for clamping the limiting block to slide.

[0015] In summary, this application includes at least one of the following beneficial technical effects:

[0016] The present invention uses a design of a rotating cover, a storage box, a connecting wire, a storage mechanism, a locking mechanism, and a cover mechanism. The connecting wire is wound around a storage roller and is automatically loosened or wound by a motor, avoiding manual pulling and winding of the wires and shortening wiring time. When testing, the second plug is fixed, and only the first plug needs to be pulled to connect, reducing the number of plugging and unplugging. When storing, the two ends are fixed by a locking mechanism (card hole, locking groove), and only one end needs to be unlocked for the next use, avoiding interface wear caused by frequent plugging and unplugging. In addition, the telescopic connecting wire is adapted to different detection distances, and the sliding cover cooperates with the switch mechanism to lock the wire to prevent it from falling out and being dragged and damaged, thereby improving safety and portability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic structural diagram of a first state of a vacuum degree monitoring device for an arc extinguishing chamber of a high-voltage vacuum circuit breaker according to the present invention is provided;

[0018] Figure 2 A schematic diagram of the second state structure of a vacuum degree monitoring device for an arc extinguishing chamber of a high-voltage vacuum circuit breaker according to the present invention is provided;

[0019] Figure 3 for Figure 1 Schematic diagram of part of the structure;

[0020] Figure 4 for Figure 1 Schematic diagram of the structure of the middle storage box;

[0021] Figure 5 for Figure 4 A magnified schematic diagram of point A in the middle;

[0022] Figure 6 for Figure 4 Schematic diagram of the split structure;

[0023] Figure 7 for Figure 6 Schematic diagram of part of the structure.

[0024] 1. Vacuum tester; 101. Connecting socket; 2. Rotating cover; 3. Storage box; 31. Rotating groove; 32. Rotating rod; 33. First pull ring; 34. Clamp; 35. Support plate; 36. Return spring; 37. Sliding cover; 38. Tooth groove; 39. Second pull ring; 301. Sliding groove; 302. Support seat; 303. Motor; 304. First baffle; 305. Locking groove; 306. Connecting wire; 307. First plug; 308. Second baffle; 309. Telescopic connecting wire; 310. Second plug; 311. Support rod; 4. Shaft; 41. Clamping hole; 42. Support sleeve; 5. Limiting groove; 6. Limiting block. DETAILED DESCRIPTION

[0025] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention.

[0027] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] It should be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or includes elements inherent to such process, method, article, or apparatus. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0030] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0031] Example

[0032] like Figures 1 to 7As shown, the present invention provides a vacuum monitoring device for the arc extinguishing chamber of a high-voltage vacuum circuit breaker. The device comprises a vacuum tester 1 and a hinged rotating cover 2. The hinged rotating cover 2 is connected to the vacuum tester 1 and can be rotated open or closed. The cover is used to house a storage box 3 and protect the wires within. The vacuum tester 1 is provided with at least one pair of connecting jacks 101, which are used to insert a second plug 310 of a connecting wire 306, establishing an electrical connection between the tester and the wires. A storage box 3 corresponding to the connecting jacks 101 is fixedly connected to the rotating cover 2. The storage box 3 is fixed to the rotating cover 2 and houses the connecting wires 306, along with a storage mechanism and a locking mechanism, ensuring orderly storage and management of the wires. The pair of storage boxes 3 are arranged linearly on the rotating cover 2. The boxes contain connecting wires 306, which are used to connect the vacuum tester 1 to the arc extinguishing chamber contacts and transmit detection signals. The connecting wires 306 are divided into two red and black lines.

[0033] Among them, such as Figures 6 and 7 As shown, the interior of the storage box 3 is provided with a storage mechanism for winding the connecting wire 306. The storage mechanism includes a support base 302 fixedly connected to the inner wall of the storage box 3. The support base 302 is fixed to the inner wall of the storage box 3 and is used to install a motor 303 to support the rotation of the storage roller. The interior of the support base 302 is fixedly connected to the motor 303. The motor 303 is installed in the support base 302 and drives the first baffle 304 to rotate, which drives the connecting wire 306 to automatically loosen or reel in the wire through the storage roller. The output shaft of the motor 303 is fixedly connected to the first baffle 304. The first baffle 304 is connected to the output shaft of the motor 303. When rotating, it drives the storage roller to rotate, and cooperates with the second baffle 308 to realize the winding or loosening of the wire. The locking groove 305 on it is used to fix the first plug 307. The storage box 3 further includes a second baffle 308 corresponding to the first baffle 304. The second baffle 308 corresponds to the first baffle 304 and has a centrally mounted storage roller that supports the winding of the connecting wire 306. The roller is rotatably supported by the shaft 4 and the support sleeve 42. A storage roller that supports the connecting wire 306 is fixedly mounted in the central portion of the second baffle 308 and is used to retract and release the connecting wire 306 by winding.

[0034] Secondly, the motor 303 drives the connecting wire 306 to retract and extend to precisely control the length, avoiding entanglement and knotting caused by manual pulling of the wire, and improving the efficiency of preparation before detection; the first baffle 304 and the second baffle 308 together support the storage roller to arrange the wires in order, reducing the damage to the insulation layer caused by the mutual squeezing of the wires during storage; the storage box design integrated in the rotating cover 2 makes the overall structure of the equipment compact, and the wires are not easy to scatter when carried, which is suitable for outdoor mobile detection scenarios.

[0035] In addition, if Figures 6 and 7As shown, the storage mechanism is equipped with a locking mechanism for securing the two ends of the connecting wire 306. The locking mechanism includes a shaft 4 disposed within the storage box 3. One end of the shaft 4 is secured to the second baffle 308, and the other end defines a latching hole 41 for inserting a second plug 310, securing the other end of the wire, and cooperating with a locking groove 305 to achieve locking of the two ends. One end of the shaft 4 is fixedly connected to the second baffle 308. The inner wall of the storage box 3 is also fixedly connected to a support sleeve 42. The support sleeve 42 is fixed to the inner wall of the storage box 3 and flexibly engages with the shaft 4, supporting the rotation of the shaft 4 and ensuring smooth rotation of the second baffle 308. The support sleeve 42 flexibly engages with the shaft 4. One end of the connecting wire 306 is fixedly connected to a first plug 307. The first plug 307 is connected to the plug at one end of the connecting wire 306 and is used to connect to the arc chamber contacts (static or moving contacts). The connection must be manually pulled out during testing. The other end of the connecting cable 306 slides through the second baffle 308 and then plugs into the second plug 310 in the connecting jack 101. This second plug 310, the other end of the connecting cable 306, plugs into the vacuum tester's connecting jack 101 and is secured to the shaft 4 via a latch 41, reducing insertion and removal times. A retractable cable 309 is provided at the end of the connecting cable 306 near the second plug 310. This retractable cable 309 utilizes a coil spring-like structure, similar to existing designs. It can be extended and retracted like a tape measure, increasing in length when extended and automatically retracting to its original position when released. The retractable cable 309, the telescopic section of the connecting cable 306 near the second plug 310, adapts to different detection distances and prevents excessive stretching and wear of the cable. The shaft 4 is provided with multiple latching holes 41 for the second plug 310. These latching holes 41 are located on the shaft 4 and are used to insert the second plug 310. These mechanical latching holes secure the cable, preventing loosening during testing. The inner walls of the latching holes 41 are lined with rubber to increase friction. The first baffle 304 is provided with a plurality of locking grooves 305 distributed in a circumferential array for the first plug 307 to be snapped into. The locking grooves 305 are provided on the first baffle 304 and are distributed in a circumferential array for snapping into the first plug 307 to fix one end of the wire to prevent it from loosening during storage.

[0036] It is worth noting that if Figures 5 and 6As shown, a cover mechanism is slidably mounted on the storage box 3 to prevent the stored connecting wires 306 from escaping the storage box 3. The cover mechanism includes a sliding groove 301 provided on the storage box 3. The sliding groove 301 is provided on the storage box 3 and provides a sliding track for the sliding cover 37, limiting its movement. A sliding cover 37 is slidably connected to the interior of the sliding groove 301. The sliding cover 37 is slidably mounted on the sliding groove 301 of the storage box 3, exposing the wires when opened and preventing them from escaping when closed. The sliding cover 37 is locked with a tooth groove 38 and a clamp 34. A second pull ring 39 is fixedly connected to the outer wall of the sliding cover 37. The second pull ring 39 is fixed to the outer wall of the sliding cover 37, facilitating manual pulling of the sliding cover 37 to achieve opening and closing operations. The sliding cover 37 is provided with a plurality of tooth grooves 38 arranged in a linear pattern. The tooth grooves 38 are provided on the sliding cover 37 and engage with the clamp 34, providing multiple locking positions to accommodate different wire pull-out lengths. The end of the sliding cover 37 close to the tooth groove 38 is fixedly connected to the limit block 6. The limit block 6 is fixed to the end of the sliding cover 37 and slides into the limit groove 5 to ensure the stable trajectory of the sliding cover 37 when opening and closing, thereby enhancing the reliability of the structure. A limit groove 5 is provided on the inner wall of one side of the sliding groove 301 to catch the limit block 6. The limit groove 5 is provided on the inner wall of the sliding groove 301 and cooperates with the limit block 6 of the sliding cover 37 to limit the sliding stroke of the sliding cover 37 and prevent it from falling out. The storage box 3 is also provided with a rotating groove 31 connected to the sliding groove 301. The rotating groove 31 is provided in the storage box 3 and has a switch mechanism (rotating rod 32, etc.) installed inside to cooperate with the locking and unlocking of the sliding cover 37. The interior of the rotating groove 31 is provided with a switch mechanism that automatically snaps into the tooth groove 38.

[0037] Furthermore, when the sliding cover 37 is closed, it can also form a physical protective barrier to prevent dust and oil from entering the storage box and contaminating the wires, thereby extending the wire maintenance cycle; the cooperation between the limit block 6 and the limit groove 5 ensures that the sliding cover 37 slides smoothly to avoid pinching the wires during rapid opening and closing; the locking structure of the tooth groove 38 and the clamping head 34 can memorize the commonly used wire pull-out length, and there is no need for repeated adjustments during repeated inspections, thereby improving batch operation efficiency.

[0038] Going further, Figures 4 and 5As shown, the switch mechanism includes a support rod 311 fixedly connected to a rotation slot 31. The support rod 311 is fixed within the rotation slot 31, providing a rotational fulcrum for the rotation rod 32 and ensuring that the clamping head 34 precisely engages the tooth groove 38. The support rod 311 is rotatably connected to the rotation rod 32, which is hinged to the support rod 311 within the rotation slot 31. Rotation of the rotation rod 32 drives the clamping head 34 into and out of the tooth groove 38 of the sliding cover 37, thereby locking the sliding cover 37. The end of the rotation rod 32 away from the support rod 311 is also fixedly connected to a first pull ring 33. The first pull ring 33 is fixed to the end of the rotation rod 32, facilitating manual pulling of the rotation rod 32 to trigger the unlocking of the clamping head 34. The end of the rotation rod 32 away from the support rod 311 is fixedly connected to a clamping head 34 that engages the tooth groove 38. The clamping head 34 is fixed to the end of the rotation rod 32 and cooperates with the tooth groove 38 of the sliding cover 37 to prevent the sliding cover 37 from sliding through mechanical engagement, thereby locking the wire. A support plate 35 is also fixedly connected to the inner wall of the rotating groove 31. This support plate 35 is secured to the inner wall of the rotating groove 31 and is used to mount a return spring 36, providing elastic support. A return spring 36 is fixedly connected to the support plate 35. This return spring 36 connects the support plate 35 to the middle portion of the rotating rod 32. Through elastic tension, the retaining head 34 automatically engages the tooth groove 38, maintaining the locked state of the sliding cover 37. The end of the return spring 36, away from the support plate 35, is fixedly connected to the middle portion of the rotating rod 32.

[0039] In this embodiment, when using the high-voltage vacuum circuit breaker interrupter vacuum monitoring device, first rotate the rotary cover 2 on the vacuum tester 1 to open it. Figure 2 and Figure 7 As shown, the second plug 310 at the end of the telescopic connecting wire 309 is inserted into the locking hole 41 on the shaft 4, so that the second plug 310 is firmly locked in the locking hole 41. The motor 303 in the corresponding storage box 3 is then activated. After the motor 303 is activated, the output shaft drives the first baffle 304 to rotate. The first baffle 304, in turn, drives the second baffle 308 to rotate via the storage roller. The second baffle 308 is supported and rotated within the support sleeve 42 by the shaft 4. The first end of the first plug 307 is then pulled, causing the rotating storage roller to slowly release the connecting wire 306. The first plug 307 then drives the connecting wire 306 to loosen the desired length from the storage roller, stopping the motor 303. Finally, the second plug 310 is removed from the locking hole 41. Pulling the second plug 310 forcefully causes the telescopic connecting wire 309 to extend and retract. The second plug 310 is then inserted into the corresponding connecting socket 101 to complete the connection. The same applies to the connecting wire 306 in the other storage box 3, which will not be described here.

[0040] Before pulling out and storing the connecting wire 306 from the storage box 3, the second pull ring 39 is pulled firmly. This will cause the sliding cover 37 to slide along the sliding groove 301. Simultaneously, the sliding cover 37 also causes the stopper 6 thereon to slide within the stopper groove 5 until the stopper 6 engages the inner wall of one end of the stopper groove 5. At this point, the stopper 6 has reached its limit within the stopper groove 5, preventing the sliding cover 37 from blocking the return spring 36 from being exposed from within the storage box 3. To close the sliding cover 37 after using the connecting wire 306, the first pull ring 33 is pulled upward. This will cause the clamping head 34 at the end of the rotating rod 32 to disengage from the tooth groove 38. At this point, the clamping head 34 is no longer engaged with the tooth groove 38 of the sliding cover 37. The sliding cover 37 is then pushed into the sliding groove 301, fully engaging the sliding cover 37 and closing the sliding cover 37. Finally, the first pull ring 33 can be loosened, and the end of the rotating rod 32 can drive the clamping head 34 to be reinserted into the corresponding tooth groove 38 through the elastic tension of the return spring 36 on the support plate 35. Due to the shape of the clamping head 34, the sliding cover plate 37 can be forcibly pulled out of the sliding groove 301, but cannot be directly inserted into the sliding groove 301.

[0041] The preferred embodiments of the present invention described above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A vacuum monitoring device for an arc extinguishing chamber of a high-voltage vacuum circuit breaker, comprising a vacuum tester (1) and a rotating cover (2) hingedly connected thereto, wherein the vacuum tester (1) is provided with at least one pair of connecting jacks (101), characterized in that: Also includes: a storage box (3) fixedly connected to the rotating cover (2) and corresponding to the connection socket (101); A connecting wire (306) is placed in the storage box (3), and a storage mechanism for winding the connecting wire (306) is provided inside the storage box (3); A locking mechanism provided on the storage mechanism for fixing both ends of the connecting line (306); The cover mechanism is slidably mounted on the storage box (3) to prevent the stored connecting wire (306) from escaping from the storage box (3).

2. A vacuum degree monitoring device for an interrupter chamber of a high-voltage vacuum circuit breaker according to claim 1, characterized in that: The storage mechanism comprises a support base (302) fixedly connected to the inner wall of the storage box (3); a motor (303) is fixedly connected to the interior of the support base (302); an output shaft of the motor (303) is fixedly connected to a first baffle (304); a second baffle (308) corresponding to the first baffle (304) is further provided inside the storage box (3); a storage roller supporting a connecting line (306) is fixedly connected to the middle of the second baffle (308).

3. A vacuum degree monitoring device for an interrupter chamber of a high-voltage vacuum circuit breaker according to claim 2, characterized in that: The locking mechanism comprises a shaft (4) arranged in the storage box (3), one end of the shaft (4) is fixedly connected to the second baffle (308), the inner wall of the storage box (3) is also fixedly connected to the support sleeve (42), the support sleeve (42) is movably sleeved with the shaft (4), one end of the connecting line (306) is fixedly connected to the first plug (307), the other end of the connecting line (306) is movably inserted into the second plug (310) in the connecting jack (101) after passing through the second baffle (308), the shaft (4) is provided with a plurality of locking holes (41) for inserting the second plug (310), and the first baffle (304) is provided with a plurality of locking grooves (305) distributed in a circumferential array and for the first plug (307) to be inserted.

4. A vacuum degree monitoring device for an interrupter chamber of a high-voltage vacuum circuit breaker according to claim 1, characterized in that: An end of the connecting wire (306) close to the second plug (310) is provided with a retractable connecting wire (309).

5. The device for monitoring vacuum degree of an interrupter chamber of a high-voltage vacuum circuit breaker according to claim 1, characterized in that: The cover mechanism comprises a sliding groove (301) provided on the storage box (3); a sliding cover (37) is slidably connected to the interior of the sliding groove (301); a plurality of linearly arranged tooth grooves (38) are provided on the sliding cover (37); a rotating groove (31) communicating with the sliding groove (301) is further provided on the storage box (3); a switch mechanism is provided inside the rotating groove (31) that automatically engages with the tooth groove (38).

6. A device for monitoring vacuum degree of an interrupter chamber of a high-voltage vacuum circuit breaker according to claim 5, characterized in that: The switch mechanism comprises a support rod (311) fixedly connected in a rotating groove (31); a rotating rod (32) is rotatably connected to the support rod (311); an end of the rotating rod (32) away from the support rod (311) is fixedly connected to a clamping head (34) clamped in a tooth groove (38); a support plate (35) is also fixedly connected to the inner wall of the rotating groove (31); a return spring (36) is fixedly connected to the support plate (35); and an end of the return spring (36) away from the support plate (35) is fixedly connected to the middle part of the rotating rod (32).

7. A device for monitoring vacuum degree of an arc extinguishing chamber of a high-voltage vacuum circuit breaker according to claim 6, characterized in that: One end of the rotating rod (32) away from the supporting rod (311) is also fixedly connected to a first pull ring (33).

8. The device for monitoring vacuum degree of an interrupter chamber of a high-voltage vacuum circuit breaker according to claim 5, characterized in that: A second pull ring (39) is fixedly connected to the outer wall of the sliding cover plate (37).

9. The device for monitoring vacuum degree of an interrupter chamber of a high-voltage vacuum circuit breaker according to claim 1, characterized in that: A pair of storage boxes (3) are arranged in a linear pattern on the rotating cover (2).

10. The device for monitoring vacuum degree of an interrupter chamber of a high-voltage vacuum circuit breaker according to claim 5, characterized in that: One end of the sliding cover plate (37) close to the tooth groove (38) is fixedly connected to the limit block (6), and a limit groove (5) for clamping the limit block (6) to slide is provided on the inner wall of one side of the sliding groove (301).

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