Detection device based on gas insulation ring main unit

Abstract

The invention relates to the technical field of ring main unit detection, and particularly discloses a detection device based on a gas insulation ring main unit, which comprises a detector, two first probes and a second probe which form an array type detection system, and the first probes and the second probe are connected through a mounting frame; the two first probes are respectively mounted at the telescopic ends of the two first telescopic rods; the first probe and the second probe comprise movable ends and fixed shells, the first probe faces and is parallel to the side face of the cabinet body, and telescopic pieces are arranged between the movable ends and the fixed shells. The two first probes and the second probe are stereoscopically distributed through the mounting rack, and are suitable for rapid positioning of leakage discharge positions, and the positions of the first probes can be freely adjusted through the first telescopic rods and the first hinge structures. And the position of the second probe can be freely adjusted through a second telescopic rod, a third telescopic rod and a second hinge structure, so that the usability is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of ring main unit detection, and in particular to a detection device based on a gas insulated ring main unit. Background Art

[0002] The device for detecting leakage in gas-insulated ring main unit (GINS) monitors the insulation status and leakage current of the cabinet in real time through high-precision sensors and intelligent analysis technology. Its core functions include: Leakage current monitoring: Use non-contact electric field sensors or core-through current transformers (CTs) to detect abnormal leakage current on the cabinet surface or ground loop to determine insulation degradation or partial discharge risks.

[0003] Partial discharge detection: Use ultra-high frequency (UHF) sensors or ultrasonic probes to capture partial discharge signals caused by insulation defects in the cabinet and locate potential fault points.

[0004] For example, the prior art patent announcement number CN222050364U discloses an all-in-one partial discharge detector, which includes a body, a first rack body with a connecting line connected to the detection interface, the other end of the first rack connecting line is connected to a magnetic probe for detection, and the outside of the first rack magnetic probe is provided with a buffer mechanism for buffering the magnetic force between the magnetic probe and the detection cabinet, the first rack buffer mechanism includes a sleeve, and the first rack sleeve is fixedly mounted on the outside of the magnetic probe. By providing a buffer mechanism on the outside of the magnetic probe, when performing detection, it is only necessary to bring the magnetic probe close to the detection cabinet. During this process, the magnetic force generated by the magnetic probe and the reset force of the shock-absorbing spring offset each other, thereby reducing the inertia generated by the magnetic force and achieving a buffering effect. At the same time, the subsequent pressing of the pressure plate increases the distance between the magnetic probe and the detection cabinet, thereby reducing the adsorption force between the magnetic probe and the detection cabinet, making it convenient to remove the magnetic probe together with the buffer mechanism.

[0005] The problem with the existing technology is that due to the characteristics of the array detector, at least three sensors need to be installed on the outer wall of the cabinet. When testing multiple groups of ring network cabinets distributed in parallel, the spacing between the ring network cabinets is small, and in some scenarios the ring network cabinets are installed against the wall, so it is difficult to install the sensors around the cabinet. In addition, when adjusting the position of the sensor during the detection process, it also requires assistance to pick it up, so the usability needs to be improved. Summary of the Invention

[0006] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of this application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions should not be used to limit the scope of the present invention.

[0007] The present invention provides a detection device based on a gas-insulated ring main unit (GIN), which can solve the problem of low usability of the existing technology. The specific solution is as follows: A detection device based on a gas-insulated ring main unit comprises a detector, two first probes and a second probe, forming an array detection system, wherein the first probe and the second probe are connected via a mounting frame; The mounting frame includes a main beam and two first telescopic rods. The main beam is adsorbed to the outer wall of the cabinet through an adsorption structure. The first telescopic rods are hinged to the main beam through a first hinge structure to achieve folding and storage. The two first probes are respectively mounted on the telescopic ends of the two first telescopic rods. The first probe and the second probe include a movable end and a fixed shell. The first probe is directed toward and parallel to the side of the cabinet. A telescopic part is provided between the movable end and the fixed shell. The two first probes cover the side of the cabinet driven by the first telescopic rod and the first hinged structure. The two first probes and the second probe are three-dimensionally distributed through the mounting frame, so that the probes cover the side and back of the gas-insulated ring network cabinet from different angles, thereby improving detection accuracy. The probes are particularly suitable for rapid positioning of leakage and discharge positions. The position of the first probe can be freely adjusted through the first telescopic rod and the first hinged structure, and the position of the second probe can be freely adjusted through the second telescopic rod, the third telescopic rod and the second hinged structure, thereby improving ease of use.

[0008] Preferably, a second telescopic rod is further provided at one end of the main beam, the second telescopic rod is rotatably connected to the main beam, a second hinge structure is installed at the open end of the second telescopic rod, a third telescopic rod is provided on the top of the second hinge structure, the fixed end of the third telescopic rod is hinged to the top of the second hinge structure, the second probe is fixed at the open end of the third telescopic rod, and the movable end of the second probe is facing the second telescopic rod; the first probe is adjusted by the first telescopic rod and the first hinge structure, and can be moved arbitrarily on the side of the cabinet; the second probe is finely adjusted on the back of the cabinet through the telescopic and rotating structure, thereby enhancing the detection adaptability, and is suitable for comprehensive detection of cabinets with complex structures; by adopting a gear linkage design for the second hinge structure, the third telescopic rod can be adjusted to the detection form in a single operation, which simplifies the operation process, improves deployment efficiency, and reduces manual intervention time.

[0009] Preferably, the first telescopic rod, the second telescopic rod and the third telescopic rod are on the same plane when in the folded state; The two first telescopic rods and the second telescopic rods are always on the same plane; In the detection state, the third telescopic rod is perpendicular to the second telescopic rod.

[0010] Preferably, the upper and lower ends of the main beam are provided with accommodating cavities for accommodating the first telescopic rod and the first probe, and the accommodating cavities and the upper and lower ends of the main beam are of a through-design.

[0011] Preferably, a scraping block is provided inside the accommodating cavity. When the first probe is stored, the scraping surface of the scraping block is adjacent to the movable end of the first probe. The scraping block is connected to the accommodating cavity through a reciprocating assembly. The reciprocating assembly is in the same direction as the first telescopic rod, so that the scraping block and the movable end of the first probe move in opposite directions to each other.

[0012] Preferably, the reciprocating assembly includes a second rack fixed to the scraper block, one end of the scraper block is connected to a compression spring, a sliding groove is opened on the side wall of the accommodating cavity, the scraper block is slidably connected to the sliding groove, the other end of the compression spring is fixedly connected to the inner wall of the sliding groove, a third rack is arranged below the second rack, the end of the slide rail close to the first probe is connected to a driven shift block, the second probe is connected to a driving shift block, and the second rack and the third rack are meshed by a sixth gear; by setting the scraper block and the reciprocating assembly, automatic scraping and cleaning can be achieved in conjunction with the extension and retraction of the probe, thereby preventing dirt from accumulating at the movable end of the probe, ensuring long-term detection accuracy, and reducing maintenance requirements.

[0013] Preferably, the first hinged structure includes a first hinged ear fixedly connected to the tail end of the first telescopic rod, the middle part of the first hinged ear is connected to the first gear, a first rack is arranged below the first gear, the first rack is engaged with the first gear, and one end of the first rack is fixed to the main beam through an electric push rod.

[0014] Preferably, the second hinged structure includes a second hinged ear connected to the telescopic end of the second telescopic rod, the middle part of the second hinged ear is rotatably connected to a worm, a second motor is fixedly installed on the outer wall of the second hinged ear, the output shaft of the second motor is connected to the worm, one end of the third telescopic rod is hinged to the second hinged ear, and a worm gear is fixedly connected to the hinged position, and the worm gear is meshed with the worm.

[0015] Preferably, the second hinged ear is rotatably connected to the telescopic end of the second telescopic rod, one end of the worm is fixedly connected to the fourth gear, one end of the second telescopic rod is fixedly connected to the fifth gear, and the fourth gear is meshed with the fifth gear.

[0016] Preferably, a contraction groove is provided at the rear end of the main beam, which is used to accommodate the second telescopic rod, the third telescopic rod and the second probe; by providing an accommodating cavity and a contraction groove, the first telescopic rod, the second telescopic rod, the third telescopic rod, the first probe and the second probe can be completely stored therein, thereby optimizing the space occupation problem, facilitating equipment storage, transportation and on-site deployment, and improving ease of use.

[0017] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects: 1. The present invention has an array detection system: the system includes two first probes and one second probe, which are three-dimensionally distributed through a mounting frame, so that the probes can cover the sides and back of the gas-insulated ring network cabinet from different angles, thereby improving detection accuracy. It is particularly suitable for rapid positioning of leakage and discharge positions, and the position of the first probe can be freely adjusted through the first telescopic rod and the first hinged structure, and the position of the second probe can be freely adjusted through the second telescopic rod, the third telescopic rod and the second hinged structure, thereby improving ease of use.

[0018] 2. The present invention has flexible position adjustment capabilities: the first probe is adjusted by the first telescopic rod and the first hinged structure and can be moved arbitrarily on the side of the cabinet; the second probe is finely adjusted on the back of the cabinet through the telescopic and rotating structure, thereby enhancing the detection adaptability and being suitable for comprehensive detection of cabinets with complex structures.

[0019] 3. The present invention has a one-button quick deployment function: by adopting a gear linkage design for the second articulated structure, the third telescopic rod can be adjusted to the detection form in a single operation, which simplifies the operation process, improves deployment efficiency, and reduces manual intervention time.

[0020] 4. The present invention has an automatic cleaning mechanism: by setting a scraping block and a reciprocating assembly, automatic scraping and cleaning is achieved in conjunction with the extension and retraction of the probe, thereby preventing dirt from accumulating at the active end of the probe, ensuring long-term detection accuracy and reducing maintenance requirements.

[0021] 5. The present invention has a compact foldable storage design: by providing a accommodating cavity and a retractable groove, the first telescopic rod, the second telescopic rod, the third telescopic rod, the first probe and the second probe can be completely stored therein, thereby optimizing the space occupation problem, facilitating equipment storage, transportation and on-site deployment, and improving ease of use.

[0022] Other features and advantages of the present invention will be described in the following description, and part of them will become obvious from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort. Among them: Figure 1 A state stereogram is used for the present invention; Figure 2 This is a perspective view from the other side of the present invention in use; Figure 3 It is an overall three-dimensional diagram of the present invention; Figure 4 A perspective view of the first telescopic rod, the first hinge structure, and the first probe of the present invention; Figure 5 is a cross-sectional view of the first probe of the present invention; Figure 6 A perspective view of the main beam of the present invention; Figure 7 It is a half-section diagram of the present invention; Figure 8 A half-section view of the main beam of the present invention; Figure 9 A perspective view of the first telescopic rod, the second telescopic rod, and the third telescopic rod of the present invention; Figure 10 This is a connection diagram of the detector of the present invention; Figure 11 This is a schematic diagram of the installation of the second telescopic rod of the present invention; Figure 12 is a three-dimensional diagram of the second hinge structure in Example 1 of the present invention; Figure 13 2 is a diagram showing the changing state of the second hinge structure in the second embodiment of the present invention; Figure 14 This is a schematic diagram of the installation of the scraping block in the third embodiment of the present invention; Figure 15 This is a three-dimensional diagram of the reciprocating assembly in Example 3 of the present invention.

[0024] The accompanying drawings are numerals as follows: 1. Detector; 2. First probe; 3. Second probe; 4. Main beam; 5. First telescopic rod; 6. Adsorption structure; 7. First hinged ear; 8. First gear; 9. First rack; 10. Electric push rod; 11. Movable end; 12. Fixed shell; 13. Telescopic member; 14. Ring groove; 15. Slider; 16. Cabinet; 17. Second telescopic rod; 18. Third telescopic rod; 19. Accommodating cavity; 20. Contraction groove; 21. Wire outlet; 2 2. Wire; 23. First motor; 24. Second gear; 25. Third gear; 26. Second hinged ear; 27. Worm; 28. Second motor; 29. ​​Worm wheel; 30. Fourth gear; 31. Fifth gear; 32. Scraper; 33. Second rack; 34. Compression spring; 35. Third rack; 36. Slide rail; 37. Driven shift block; 38. Driving shift block; 39. Sixth gear; 40. Limit rod; 41. Sliding slot. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used to explain the principles of the present invention together with the embodiments of the present invention.

[0026] Example 1: Figure 1 、 Figure 2 、 Figure 3 As shown, this embodiment provides a detection device based on a gas-insulated ring main unit, including a detector 1, two first probes 2 and one second probe 3, forming an array detection system. The first probe 2 and the second probe 3 are connected by a mounting frame. The two first probes 2 and the second probe 3 are three-dimensionally distributed through the mounting frame, so that the probes cover the sides and back of the gas-insulated cabinet 16 from different angles, thereby improving the detection accuracy.

[0027] The mounting frame includes a main beam 4 and two first telescopic rods 5. The main beam 4 is adsorbed on the outer wall of the cabinet 16 through an adsorption structure 6. The adsorption structure 6 can be an electromagnet or an electric suction cup. The first telescopic rod 5 is hinged to the main beam 4 through a first hinge structure to achieve folding and storage. The two first probes 2 are respectively installed at the telescopic ends of the two first telescopic rods 5.

[0028] like Figure 4 As shown, the first hinged structure includes a first hinged ear 7 fixedly connected to the tail end of the first telescopic rod 5, the middle part of the first hinged ear 7 is connected to the first gear 8, and a first rack 9 is provided below the first gear 8. The first rack 9 is engaged with the first gear 8, and one end of the first rack 9 is fixed to the main beam 4 through an electric push rod 10.

[0029] like Figure 5 As shown, the first probe 2 and the second probe 3 include a movable end 11 and a fixed shell 12. The inner wall of the fixed shell 12 is provided with an annular groove 14. One end of the movable end 11 is fixedly connected to a slider 15. The slider 15 is slidably connected to the annular groove 14. A telescopic member 13 is provided between the movable end 11 and the fixed shell 12. The telescopic member 13 is an electromagnetic spring. When the electromagnetic spring is energized, it can contract, thereby driving the movable end 11 to extend out of one end of the fixed shell 12. The first probe 2 is facing and parallel to the side of the cabinet 16. The two first probes 2 cover the side of the cabinet 16 driven by the first telescopic rod 5 and the first hinge structure.

[0030] like Figure 6 、 Figure 7 As shown, a second telescopic rod 17 is also provided at one end of the main beam 4, and the second telescopic rod 17 is rotatably connected to the main beam 4. A second hinged structure is installed at the open end of the second telescopic rod 17, and a third telescopic rod 18 is provided at the top of the second hinged structure. The fixed end of the third telescopic rod 18 is hinged to the top of the second hinged structure, and the second probe 3 is fixed at the open end of the third telescopic rod 18, and the movable end 11 of the second probe 3 faces the second telescopic rod 17.

[0031] As a possible embodiment, Figure 8As shown, the upper and lower ends of the main beam 4 are provided with accommodating cavities 19 for accommodating the first telescopic rod 5 and the first probe 2. The accommodating cavity 19 and the upper and lower ends of the main beam are designed to be through-connected. The rear end of the main beam 4 is provided with a contraction groove 20, which is used to accommodate the second telescopic rod 17, the third telescopic rod 18 and the second probe 3.

[0032] As a possible embodiment, Figure 8 、 Figure 9 As shown, the outside of the first probe 2 and the second probe 3 are connected with a wire 22, the front end of the main beam 4 is provided with a wire outlet 21, the inner wall of the wire outlet 21 is provided with three lead holes, the three lead holes are respectively connected to the two accommodating cavities 19 and the shrinkage groove 20, and the three wires 22 are electrically connected to the interface on the detector 1.

[0033] like Figure 10 、 Figure 11 As shown, the second telescopic rod 17 is rotatably connected to the inner wall of the contraction groove 20 through a bearing, and a first motor 23 is fixedly installed on the inner wall of the contraction groove 20. The output shaft of the first motor 23 is connected to the second gear 24, and the tail end of the second telescopic rod 17 is connected to the third gear 25, and the second gear 24 is meshed with the third gear 25.

[0034] like Figure 12 As shown, the second hinged structure includes a second hinged ear 26 connected to the telescopic end of the second telescopic rod 17, and the middle part of the second hinged ear 26 is rotatably connected to the worm 27. The outer wall of the second hinged ear 26 is fixedly mounted with a second motor 28, and the output shaft of the second motor 28 is connected to the worm 27. One end of the third telescopic rod 18 is hinged to the second hinged ear 26, and the hinged position is fixedly connected with a worm gear 29, which engages with the worm 27. When the second motor 28 drives the worm 27 to rotate, the worm 27 engages with the worm gear 29, thereby rotating the worm gear 29, and then expanding the third telescopic rod 18 so that the third telescopic rod 18 is perpendicular to the second telescopic rod 17; the position of the first probe 2 can be freely adjusted through the first telescopic rod 5 and the first hinged structure, and the position of the second probe 3 can be freely adjusted through the second telescopic rod 17, the third telescopic rod 18 and the second hinged structure.

[0035] like Figure 1 As shown, the first telescopic rod 5, the second telescopic rod 17 and the third telescopic rod 18 are on the same plane when folded; the two first telescopic rods 5 and the second telescopic rod 17 are always on the same plane; Figure 2 As shown, in the detection state, the third telescopic rod 18 is perpendicular to the second telescopic rod 17.

[0036] Through the above solution, when inspecting the cabinet 16, the first probe 2 can be adjusted to any position on the side of the cabinet 16 through the cooperation of the first telescopic rod 5 and the first hinge structure, and the second probe 3 can be adjusted to any position on the back of the cabinet 16 through the cooperation of the second telescopic rod 17, the third telescopic rod 18 and the second hinge structure. In this way, the three probes (two first probes 2 and one second probe 3) can be three-dimensionally distributed around the cabinet 16 to form an array detection system, thereby locating the leakage discharge position of the cabinet 16.

[0037] Embodiment 2: This embodiment differs from the embodiment 1 in that the technical solution is as follows: Figure 13 As shown, the second hinged ear 26 is rotatably connected to the telescopic end of the second telescopic rod 17, one end of the worm 27 is fixedly connected to the fourth gear 30, and one end of the second telescopic rod 17 is fixedly connected to the fifth gear 31, and the fourth gear 30 is meshed with the fifth gear 31. Through this scheme, when the second motor 28 drives the third telescopic rod 18 to rotate around the second hinged ear 26, the meshing action of the fourth gear 30 and the fifth gear 31 can make the second hinged ear 26 and the second telescopic rod 17 rotate synchronously. The advantage of this scheme over the first embodiment is that the position of the third telescopic rod 18 can be adjusted to the detection form at one time by the second motor 28, and then the specific position of the second probe 3 can be adjusted by the rotation of the second telescopic rod 17 and the extension and contraction of the third telescopic rod 18; the first probe 2 is adjusted by the first telescopic rod 5 and the first hinge structure, and can be moved arbitrarily on the side of the cabinet 16; the second probe 3 is finely adjusted on the back of the cabinet 16 through the telescopic and rotation structure; by adopting a gear linkage design for the second hinge structure, the third telescopic rod 18 can be adjusted to the detection form in a single operation.

[0038] Embodiment 3: This embodiment is different from the technical solution of embodiment 1 or embodiment 2 in that, Figure 14 、 Figure 15 As shown, a scraping block 32 is provided inside the accommodating cavity 19. When the first probe 2 is accommodated, the scraping surface of the scraping block 32 is adjacent to the movable end 11 of the first probe 2. The scraping block 32 is connected to the accommodating cavity 19 through a reciprocating assembly. The reciprocating assembly is in the same direction as the first telescopic rod 5, so that the scraping block 32 and the movable end 11 of the first probe move in opposite directions to each other; by providing the scraping block 32 and the reciprocating assembly, automatic scraping and cleaning are achieved in conjunction with the extension and retraction of the probe; by providing the accommodating cavity 19 and the contraction groove 20, the first telescopic rod 5, the second telescopic rod 17, the third telescopic rod 18, the first probe 2 and the second probe 3 can be completely accommodated therein.

[0039] Continue reading Figure 14 、 Figure 15The reciprocating assembly includes a second rack 33, the end of the second rack 33 is fixed to the scraper block 32, one end of the scraper block 32 is connected to a compression spring 34, a sliding groove 41 is provided on the side wall of the accommodating chamber 19, the scraper block 32 is slidably connected to the sliding groove 41, the other end of the compression spring 34 is fixedly connected to the inner wall of the sliding groove 41, one end of the scraper block 32 is also connected to a limit rod 40, the limit rod 40 is slidably connected to the limit hole (not shown in the figure) on the inner wall of the sliding groove 41, a third rack 35 is provided below the second rack 33, the bottom of the third rack 35 is connected to a slide rail 36, the slide rail 36 is slidably connected to the sliding groove 41, and the end of the slide rail 36 close to the first probe 2 is connected There is a driven block 37, and a driving block 38 is connected to the first probe 2. The first probe 2 and the driving block 38 are driven to move by the first telescopic rod 5, thereby driving the driven block 37, the slide rail 36 and the third rack 35 to slide to one side, and then under the meshing action of the sixth gear 39, the second rack 33 and the scraping block 32 move toward the direction of the first probe 2, thereby scraping the first probe 2, and then when the first telescopic rod 5 is extended toward the direction of the first probe 2, under the action of the compression spring 34, the scraping block 32 moves in the opposite direction away from the first probe 2, so that the scraping block 32 moves back and forth, and continuously scrapes and cleans the movable end 11 of the first probe 2.

[0040] It should be noted that the first telescopic rod 5 , the second telescopic rod 17 and the third telescopic rod 18 in the above solution are electric telescopic rods or hydraulic telescopic rods.

[0041] When using the above solution: S1. Initial deployment and adsorption fixation: At the beginning of the test, the main beam 4 of the mounting frame is firmly adsorbed on the outer wall of the cabinet 16 by the adsorption structure 6 to ensure the stability of the system. The main beam 4 is connected to the detector 1 through the wire 22 in the outlet 21 to power the entire device and transmit data. At this time, the first telescopic rod 5 and the first probe 2 are in a folded and stored state, hidden in the accommodating cavity 19 of the main beam 4; the second telescopic rod 17, the third telescopic rod 18 and the second probe 3 are folded in the retraction groove 20 to achieve compact storage.

[0042] S2. Probe position adjustment: S2.1. Deployment of the first probe: The position of the first probe 2 is adjusted through the first hinge structure. The electric push rod 10 pushes the first rack 9 to move, driving the first gear 8 engaged with it to rotate, causing the first hinged ear 7 to rotate; then the first telescopic rod 5 starts working, driving the first probe 2 to extend, the telescopic part 13 is energized and retracted, the movable end 11 protrudes from the fixed shell 12, the slider 15 and the annular groove 14 slide to ensure directional stability, and the two first probes 2 cover the side of the cabinet 16 in parallel, and any point can be accurately located through telescopic and angle changes.

[0043] S2.2. Deployment of the second probe: The second telescopic rod 17 rotates under the support of the bearing, and the second hinge structure is started: the second motor 28 drives the worm 27 to rotate, and the meshing worm gear 29 rotates, so that the third telescopic rod 18 is vertically extended.

[0044] S2.3. In the second embodiment, the fourth gear 30 and the fifth gear 31 are linked to further synchronize the rotation of the second hinged ear 26, and the adjustment can be completed in a single operation. The second probe 3 is fixed to the end of the third telescopic rod 18, and covers the back of the cabinet 16 through telescopic and rotation, with the movable end 11 facing the direction of the telescopic rod.

[0045] S3. Array detection execution: Three probes (two first probes 2 and one second probe 3) form a three-dimensional array: the two first probes 2 provide horizontal coverage on the sides of the cabinet 16, and the second probe 3 provides vertical coverage on the back. The detector 1 reads the probe signals through an interface and analyzes the leakage discharge location in real time. The probe positions can be dynamically adjusted. The first hinge structure of the first telescopic rod 5 and the second hinge structure of the second telescopic rod 17 provide multiple degrees of freedom, ensuring comprehensive detection.

[0046] S4. Cleaning and maintenance: When the first probe 2 retracts, the driving block 38 pushes the driven block 37 to move the slide rail 36 and the third rack 35; under the engagement of the sixth gear 39, the second rack 33 drives the scraping block 32 to move toward the movable end 11 to achieve scraping cleaning; when the first probe 2 is extended, the compression spring 34 rebounds, causing the scraping block 32 to move in the opposite direction in the sliding groove 41. The reciprocating action ensures continuous cleaning; it prevents dirt from affecting the detection accuracy and is particularly suitable for harsh environments.

[0047] S5. Folding and storage: After the test is completed, the probe is retracted: the first telescopic rod 5 is hinged and folded back into the accommodating cavity 19; the second telescopic rod 17 and the third telescopic rod 18 are retracted into the contraction groove 20 by reverse adjustment; all structures are stored flat, and the main beam 4 adsorption structure 6 is powered off and released; the entire device occupies a small space, which is convenient for transportation and next use.

[0048] In summary, the two first probes 2 and one second probe 3 of the present invention are three-dimensionally distributed through the mounting frame, so that the probes can cover the sides and back of the gas-insulated cabinet 16 from different angles, thereby improving the detection accuracy. The position of the first probe 2 can be freely adjusted by the first telescopic rod 5 and the first hinge structure, and the position of the second probe 3 can be freely adjusted by the second telescopic rod 17, the third telescopic rod 18 and the second hinge structure; the first probe 2 can be adjusted to any position on the side of the cabinet 16 by the first telescopic rod 5 and the first hinge structure; the second probe 3 can be finely adjusted on the back of the cabinet 16 by the telescopic and rotating structure; by adopting a gear linkage design for the second hinge structure, the third telescopic rod 18 can be adjusted to the detection form in a single operation; by providing a scraping block 32 and a reciprocating assembly, automatic scraping and cleaning can be achieved in conjunction with the extension and contraction of the probe; by providing a accommodating cavity 19 and a shrinkage groove 20, the first telescopic rod 5, the second telescopic rod 17, the third telescopic rod 18, the first probe 2 and the second probe 3 can be completely accommodated inside it.

[0049] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these 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.

[0050] The terms "first," "second," "third," "fourth," and the like (if any) in the description and claims of the embodiments of the present application and in the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the embodiments of the present application described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having," and any variations thereof, are intended to cover non-exclusive inclusions, for example, a process, method, system, product, or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to these processes, methods, products, or apparatus.

[0051] Parallel: The parallel defined in this application is not limited to absolute parallelism. This definition of parallelism can be understood as basic parallelism, allowing for situations where the two sides are not absolutely parallel due to factors such as assembly tolerance, design tolerance, and the influence of structural flatness. Small angle errors are allowed. For example, within an assembly error range of 10 degrees, it can be understood as a parallel relationship.

[0052] Vertical: The verticality defined in this application is not limited to an absolute vertical intersection relationship (an angle of 90 degrees). It allows for non-absolute vertical intersection relationships caused by factors such as assembly tolerance, design tolerance, and the influence of structural flatness. It also allows for errors in a small angle range. For example, the assembly error range of 80 to 100 degrees can be understood as a vertical relationship.

[0053] The term "plurality" in this document refers to two or more. The term "and / or" in this document simply describes an association between related objects, indicating that three possible relationships exist. For example, "A and / or B" can mean: A exists alone, A and B exist simultaneously, or B exists alone.

[0054] In the embodiments of the present application, any device or element referred to or implied must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the embodiments of the present application. In the description of the embodiments of the present application, the meaning of "plurality" is two or more, unless otherwise specifically specified.

[0055] The preferred embodiments of the present invention disclosed 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 the specific embodiments described. Obviously, many modifications and variations are possible based on the content 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 detection device based on a gas-insulated ring main unit, comprising a detector, two first probes and a second probe, forming an array detection system, characterized in that: The first probe and the second probe are connected via a mounting bracket; The mounting frame includes a main beam and two first telescopic rods. The main beam is adsorbed to the outer wall of the cabinet through an adsorption structure. The first telescopic rods are hinged to the main beam through a first hinge structure to achieve folding and storage. The two first probes are respectively mounted on the telescopic ends of the two first telescopic rods. The first probe and the second probe include a movable end and a fixed shell. The first probe faces and is parallel to the side of the cabinet. There is a telescopic part between the movable end and the fixed shell. The two first probes cover the side of the cabinet under the drive of the first telescopic rod and the first hinge structure.

2. A detection device based on a gas-insulated ring main unit according to claim 1, characterized in that: A second telescopic rod is also provided at one end of the main beam, which is rotatably connected to the main beam, a second hinged structure is installed at the open end of the second telescopic rod, a third telescopic rod is provided on the top of the second hinged structure, a fixed end of the third telescopic rod is hinged to the top of the second hinged structure, a second probe is fixed at the open end of the third telescopic rod, and the movable end of the second probe faces the second telescopic rod.

3. The detection device based on a gas-insulated ring main unit according to claim 2, characterized in that: The first telescopic rod, the second telescopic rod and the third telescopic rod are on the same plane when in the folded state; The two first telescopic rods and the second telescopic rods are always on the same plane; In the detection state, the third telescopic rod is perpendicular to the second telescopic rod.

4. The detection device based on a gas-insulated ring main unit according to claim 1, characterized in that: The upper and lower ends of the main beam are provided with accommodating cavities for accommodating the first telescopic rod and the first probe, and the accommodating cavities and the upper and lower ends of the main beam are designed to be through.

5. The detection device based on a gas-insulated ring main unit according to claim 1, characterized in that: A scraping block is provided inside the accommodating cavity. When the first probe is stored, the scraping surface of the scraping block is adjacent to the movable end of the first probe. The scraping block is connected to the accommodating cavity through a reciprocating assembly. The reciprocating assembly is in the same direction as the first telescopic rod, so that the scraping block and the movable end of the first probe move in opposite directions to each other.

6. The detection device based on a gas-insulated ring main unit according to claim 5, characterized in that: The reciprocating assembly includes a second rack fixed to the scraping block, one end of the scraping block is connected to a compression spring, a sliding groove is provided on the side wall of the accommodating cavity, the scraping block is slidably connected to the sliding groove, the other end of the compression spring is fixedly connected to the inner wall of the sliding groove, a third rack is provided below the second rack, the end of the slide rail close to the first probe is connected to a driven shift block, the second probe is connected to a driving shift block, and the second rack and the third rack are meshed through a sixth gear.

7. The detection device based on a gas-insulated ring main unit according to claim 1, characterized in that: The first hinged structure includes a first hinged ear fixedly connected to the tail end of the first telescopic rod, the middle part of the first hinged ear is connected to the first gear, a first rack is provided below the first gear, the first rack is meshed with the first gear, and one end of the first rack is fixed to the main beam through an electric push rod.

8. The detection device based on a gas-insulated ring main unit according to claim 1, characterized in that: The second hinged structure includes a second hinged ear connected to the telescopic end of the second telescopic rod, the middle part of the second hinged ear is rotatably connected to a worm, a second motor is fixedly installed on the outer wall of the second hinged ear, the output shaft of the second motor is connected to the worm, one end of the third telescopic rod is hinged to the second hinged ear, and a worm gear is fixedly connected to the hinged position, and the worm gear is engaged with the worm.

9. The detection device based on a gas-insulated ring main unit according to claim 8, characterized in that: The second hinged ear is rotatably connected to the telescopic end of the second telescopic rod, one end of the worm is fixedly connected to the fourth gear, one end of the second telescopic rod is fixedly connected to the fifth gear, and the fourth gear is meshed with the fifth gear.

10. A detection device based on a gas-insulated ring main unit according to claim 8 or 9, characterized in that: A contraction groove is provided at the rear end of the main beam, and the contraction groove is used to accommodate the second telescopic rod, the third telescopic rod and the second probe.

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