A detection device based on gas insulated ring main unit

Abstract

The application relates to the technical field of ring main unit detection, and particularly discloses a detection device based on a gas-insulated ring main unit, which comprises a detector, two first probes and one second probe, constitutes an array type detection system, and is connected through a mounting frame between the first probe and the second probe; the two first probes are respectively arranged at the telescopic ends of two first telescopic rods; the first probe and the second probe comprise a movable end and a fixed shell, the first probe is oriented towards and parallel to the side surface of a cabinet body, and the movable end is provided with a telescopic piece between the movable end and the fixed shell. The two first probes and the second probe are three-dimensionally distributed through the mounting frame, are suitable for the rapid positioning of a leakage discharge position, can freely adjust the position of the first probe through the first telescopic rod and a first hinged structure, can freely adjust the position of the second probe through a second telescopic rod, a third telescopic rod and a second hinged structure, and the usability is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ring main unit detection, and particularly relates to a detection device based on a gas-insulated ring main unit. BACKGROUND

[0002] The detection device for the leakage of the gas-insulated ring main unit mainly monitors the insulation state and leakage current of the cabinet body in real time through high-precision sensors and intelligent analysis technology. The core functions include:

[0003] Leakage current monitoring: using a non-contact electric field sensor or a core current transformer (CT) to detect abnormal leakage current on the surface of the cabinet body or the grounding loop, and to judge insulation deterioration or partial discharge risk.

[0004] Partial discharge detection: using an ultra-high frequency (UHF) sensor or an ultrasonic probe to capture partial discharge signals generated by insulation defects in the cabinet body, and to locate potential fault points.

[0005] For example, the prior art patent CN222050364U discloses a multi-in-one partial discharge detector. The patent includes a machine body, a detection interface of the first rack body is connected with a connecting line, the other end of the first rack connecting line is connected with a magnetic attraction probe for detection, the outer side of the first rack magnetic attraction probe is provided with a buffer mechanism for buffering the magnetic force between the magnetic attraction probe and the detection cabinet, and the first rack buffer mechanism includes a sleeve, which is fixedly installed on the outer side of the magnetic attraction probe. By arranging the buffer mechanism on the outer side of the magnetic attraction probe, during detection, the magnetic attraction probe only needs to be close to the detection cabinet. During this process, the magnetic force generated by the magnetic attraction probe and the reset force of the shock-absorbing spring offset part, thereby reducing the inertia of the magnetic force, achieving the effect of buffering, and simultaneously, subsequent pressing of the pressing plate increases the distance between the magnetic attraction probe and the detection cabinet, so that the magnetic attraction force between the magnetic attraction probe and the detection cabinet is reduced, and the magnetic attraction probe together with the buffer mechanism is conveniently taken down.

[0006] The existing problems of the prior art are that: due to the characteristics of the array detector, at least three sensors need to be installed on the outer wall of the cabinet body. When detecting multiple groups of ring main units distributed side by side, due to the small distance between the ring main units, and some scenarios where the ring main units are installed against the wall, it is difficult to install the sensors around the cabinet body, and when adjusting the position of the sensor during detection, it also needs to be assisted to take it, so the ease of use needs to be improved. SUMMARY

[0007] This section aims to summarize some aspects of the embodiments of the present application and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of the specification to avoid obscuring the purpose of this section, abstract and title, and such simplifications or omissions cannot be used to limit the scope of the present application.

[0008] The application provides a detection device based on a gas insulated ring network cabinet, which can solve the problem of low usability in the prior art, and the specific scheme is as follows:

[0009] A detection device based on a gas insulated ring network cabinet, comprising a detector, two first probes and one second probe, forming an array type detection system, the first probe and the second probe are connected through a mounting bracket;

[0010] The mounting bracket comprises a main beam and two first telescopic rods, the main beam is adsorbed on the outer wall of the cabinet body through an adsorption structure, the first telescopic rod is hinged to the main beam through a first hinge structure to realize folding storage, and the two first telescopic rods are respectively installed at the telescopic ends of the two first telescopic rods;

[0011] The first probe and the second probe comprise a movable end and a fixed shell, the first probe is directed to and parallel to the side of the cabinet body, the movable end and the fixed shell have a telescopic piece therebetween, and the two first probes cover the side of the cabinet body under the driving of the first telescopic rod and the first hinge structure; the two first probes and the second probe are three-dimensionally distributed through the mounting bracket, so that the probes cover the side and the back of the gas insulated ring network cabinet from different angles, the detection precision is improved, the probes are especially suitable for rapid positioning of a leakage discharge position, the position of the first probe can be freely adjusted through the first telescopic rod and the first hinge structure, the position of the second probe can be freely adjusted through the second telescopic rod, the third telescopic rod and the second hinge structure, and the usability is improved.

[0012] Preferably, one end of the main beam is further provided with a second telescopic rod, the second telescopic rod is rotationally connected with the main beam, the second hinge structure is installed at the open end of the second telescopic rod, the third telescopic rod is arranged at 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, and the second probe is fixed at the open end of the third telescopic rod, and the movable end of the second probe is directed to the second telescopic rod; the first probe is adjusted through the first telescopic rod and the first hinge structure, and can be moved on the side of the cabinet body at will; the second probe is finely adjusted on the back of the cabinet body through the telescopic and rotating structure, so that the detection adaptability is enhanced, and the second probe is suitable for comprehensive detection of a cabinet body with a complex structure; the second hinge structure is designed in a gear linkage mode, so that the third telescopic rod can be adjusted to a detection mode through a single operation, the operation process is simplified, the deployment efficiency is improved, and the manual intervention time is reduced.

[0013] Preferably, the first telescopic rod, the second telescopic rod and the third telescopic rod are on the same plane in the folded state;

[0014] The two first telescopic rods and the second telescopic rod are always on the same plane;

[0015] In the detection state, the third telescopic rod is perpendicular to the second telescopic rod.

[0016] 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 are throughly designed with the upper and lower ends of the main beam.

[0017] Preferably, the inside of the accommodating cavity is provided with a scraping block, when the first probe is accommodated, the scraping surface of the scraping block is adjacent to the movable end of the first probe, the scraping block is connected with the accommodating cavity through a reciprocating assembly, the reciprocating assembly is in the same direction with the first telescopic rod, and the scraping block and the movable end of the first probe are reversely moved.

[0018] Preferably, the reciprocating assembly comprises a second rack fixed with the scraping block, one end of the scraping block is connected with a compression spring, the side wall of the accommodating cavity is provided with a sliding groove, the scraping block is slidably connected with 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, one end of the sliding rail close to the first probe is connected with a driven block, the second probe is connected with a driving block, and the second rack and the third rack are meshed through a sixth gear; by arranging the scraping block and the reciprocating assembly, automatic scraping and cleaning are realized in cooperation with the telescopic probe, so that dirt accumulation on the movable end of the probe is prevented, long-term detection accuracy is ensured, and maintenance requirements are reduced.

[0019] Preferably, the first hinge structure comprises a first hinge lug fixedly connected to the tail end of the first telescopic rod, a first gear connected to the middle part of the first hinge lug, a first rack arranged below the first gear and meshed with the first gear, and one end of the first rack fixed to the main beam through an electric push rod.

[0020] Preferably, the second hinge structure comprises a second hinge lug connected to the telescopic end of the second telescopic rod, a worm rotatably connected to the middle part of the second hinge lug, a second motor fixedly installed on the outer wall of the second hinge lug, an output shaft of the second motor connected with the worm, one end of the third telescopic rod hingedly connected with the second hinge lug, and a worm wheel fixedly connected to the hinged position and meshed with the worm.

[0021] Preferably, the second hinge lug is rotatably connected with the telescopic end of the second telescopic rod, one end of the worm is fixedly connected with a fourth gear, one end of the second telescopic rod is fixedly connected with a fifth gear, and the fourth gear is meshed with the fifth gear.

[0022] Preferably, the rear end of the main beam is provided with a contraction groove for accommodating the second telescopic rod, the third telescopic rod and the second probe; by arranging the accommodating cavities and the contraction groove, the first telescopic rod, the second telescopic rod, the third telescopic rod, the first probe and the second probe can be completely accommodated in the cavities, so that the space occupation problem is optimized, the equipment storage, transportation and on-site deployment are facilitated, and the ease of use is improved.

[0023] Compared with the prior art, the present application can at least realize one of the following beneficial effects:

[0024] 1. The array detection system comprises two first probes and one second probe, which are distributed in three dimensions through a mounting frame, so that the probes cover the side and back of the gas insulated ring network cabinet from different angles, improving the detection accuracy, especially for the rapid positioning of the discharge position, 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, improving the ease of use.

[0025] 2. The flexible position adjustment capability of the present application: 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 body; the second probe is finely adjusted on the back of the cabinet body through the telescopic and rotating structure, thereby enhancing the detection adaptability and being suitable for comprehensive detection of complex structure cabinet.

[0026] 3. The one-key rapid deployment function of the present application: the second hinged structure is designed with gear linkage, and the third telescopic rod can be adjusted to the detection form through single operation, simplifying the operation process, improving the deployment efficiency and reducing the manual intervention time.

[0027] 4. The automatic cleaning mechanism of the present application: the scraping block and reciprocating assembly are set to realize automatic scraping and cleaning by cooperating with the probe extension, thereby preventing dirt from accumulating on the movable end of the probe, ensuring long-term detection accuracy and reducing maintenance requirements.

[0028] 5. The compact folding storage design of the present application: the first telescopic rod, the second telescopic rod, the third telescopic rod, the first probe and the second probe can be completely stored inside through the setting of the accommodating cavity and the contraction groove, thereby optimizing the space occupation problem, facilitating equipment storage, transportation and on-site deployment, and improving the ease of use.

[0029] Other features and advantages of the present application will be set forth in the following description, and some will become apparent from the description, or will be learned through practice of the present application. The objects and other advantages of the present application can be achieved and obtained by the structure specifically pointed out in the written description and the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without any creative labor. Among them:

[0031] Figure 1 is a state diagram of the present application;

[0032] Figure 2Another side view of the application in use;

[0033] Figure 3 Overall perspective view of the application;

[0034] Figure 4 Perspective view of the first telescopic rod, first articulation and first probe of the application;

[0035] Figure 5 Sectional view of the first probe of the application;

[0036] Figure 6 Perspective view of the main beam of the application;

[0037] Figure 7 Half-section view of the application;

[0038] Figure 8 Half-section view of the main beam of the application;

[0039] Figure 9 Perspective view of the first telescopic rod, second telescopic rod and third telescopic rod of the application;

[0040] Figure 10 Connection diagram of the detector of the application;

[0041] Figure 11 Mounting diagram of the second telescopic rod of the application;

[0042] Figure 12 Perspective view of the second articulation in example one of the application;

[0043] Figure 13 Variation diagram of the second articulation in example two of the application;

[0044] Figure 14 Mounting diagram of the scraping block in example three of the application;

[0045] Figure 15 Perspective view of the reciprocating assembly in example three of the application.

[0046] Wherein the reference signs are as follows:

[0047] 1. Detector; 2. First probe; 3. Second probe; 4. Main beam; 5. First telescopic rod; 6. Adsorption structure; 7. First hinge ear; 8. First gear; 9. First rack; 10. Electric push rod; 11. Movable end; 12. Fixed shell; 13. Telescopic component; 14. Annular groove; 15. Sliding block; 16. Cabinet; 17. Second telescopic rod; 18. Third telescopic rod; 19. Receiving cavity; 20. Shrinkage groove; 21. Cable outlet; 2. Wire; 23. First motor; 24. Second gear; 25. Third gear; 26. Second hinge lug; 27. Worm; 28. Second motor; 29. ​​Worm wheel; 30. Fourth gear; 31. Fifth gear; 32. Scraper block; 33. Second rack; 34. Compression spring; 35. Third rack; 36. Slide rail; 37. Driven lever; 38. Drive lever; 39. Sixth gear; 40. Limiting rod; 41. Sliding groove. Detailed Implementation

[0048] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form part of the present invention and, together with the embodiments of the present invention, serve to illustrate the principles of the present invention.

[0049] Example 1: As 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-type detection system. The first probes 2 and the second probe 3 are connected by a mounting bracket. The two first probes 2 and the second probe 3 are three-dimensionally distributed through the mounting bracket, so that the probes cover the sides and back of the gas-insulated cabinet 16 from different angles, thereby improving the detection accuracy.

[0050] The mounting frame includes a main beam 4 and two first telescopic rods 5. The main beam 4 is attached to the outer wall of the cabinet 16 by an adsorption structure 6, which can be an electromagnet or an electric suction cup. The first telescopic rods 5 are hinged to the main beam 4 by a first hinge structure to achieve folding and storage. Two first probes 2 are respectively installed at the telescopic ends of the two first telescopic rods 5.

[0051] like Figure 4 As shown, the first hinge structure includes a first hinge lug 7 fixedly connected to the tail end of the first telescopic rod 5. A first gear 8 is connected to the middle of the first hinge lug 7. A first rack 9 is provided below the first gear 8. The first rack 9 meshes with the first gear 8. One end of the first rack 9 is fixed to the main beam 4 through an electric push rod 10.

[0052] like Figure 5As shown in the drawings, the first probe 2 and the second probe 3 comprise 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 with a sliding block 15, the sliding block 15 is in sliding connection with the annular groove 14, and the movable end 11 and the fixed shell 12 have a telescopic piece 13 therebetween, the telescopic piece 13 is an electromagnetic spring, and when the electromagnetic spring is powered, the telescopic piece 13 can be contracted, so that the movable end 11 is driven to extend from one end of the fixed shell 12, the first probe 2 faces and is parallel to the side surface of the cabinet 16, and the two first probes 2 cover the side surface of the cabinet 16 under the driving of the first telescopic rod 5 and the first hinged structure.

[0053] As shown in the drawings, Figure 6 , Figure 7 the one end of the main beam 4 is further provided with a second telescopic rod 17, the second telescopic rod 17 is in rotary connection with the main beam 4, the open end of the second telescopic rod 17 is provided with a second hinged structure, the top of the second hinged structure is provided with a third telescopic rod 18, 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 to 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.

[0054] As a possible embodiment, as shown in the drawings, Figure 8 the upper and lower ends of the main beam 4 are provided with containing cavities 19 for containing the first telescopic rod 5 and the first probe 2, the containing cavities 19 are through design with the upper and lower ends of the main beam, and the rear end of the main beam 4 is provided with a contraction groove 20, the contraction groove 20 is used for containing the second telescopic rod 17, the third telescopic rod 18 and the second probe 3.

[0055] As a possible embodiment, as shown in the drawings, Figure 8 , Figure 9 the outer portions of the first probe 2 and the second probe 3 are connected with wires 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 in communication with the two containing cavities 19 and the contraction groove 20 respectively, and the three wires 22 are in electrical connection with the interfaces on the detector 1.

[0056] As shown in the drawings, Figure 10 , Figure 11 the second telescopic rod 17 is in rotary connection with the inner wall of the contraction groove 20 through a bearing, the inner wall of the contraction groove 20 is fixedly provided with a first motor 23, the output shaft of the first motor 23 is connected with a second gear 24, the tail end of the second telescopic rod 17 is connected with a third gear 25, and the second gear 24 is in meshing with the third gear 25.

[0057] As shown in the drawings, Figure 12As shown, the second hinge structure comprises a second hinge lug 26 connected to the telescopic end of the second telescopic rod 17, the middle part of the second hinge lug 26 is rotatably connected with a worm 27, the outer wall of the second hinge lug 26 is fixedly installed with a second motor 28, the output shaft of the second motor 28 is connected with the worm 27, one end of the third telescopic rod 18 is hingedly connected with the second hinge lug 26, and the hinge position is fixedly connected with a worm wheel 29, the worm wheel 29 is engaged with the worm 27, so that when the second motor 28 drives the worm 27 to rotate, the worm wheel 29 is rotated through the engagement of the worm 27 and the worm wheel 29, thereby unfolding the third telescopic rod 18 to make the third telescopic rod 18 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 hinge 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 hinge structure.

[0058] As shown in Figure 1 , the first telescopic rod 5, the second telescopic rod 17 and the third telescopic rod 18 are on the same plane in the folded state; the two first telescopic rods 5 and the second telescopic rod 17 are always on the same plane; as shown in Figure 2 , in the detection state, the third telescopic rod 18 is perpendicular to the second telescopic rod 17.

[0059] Through the above scheme, when the cabinet 16 is detected, the first probe 2 can be adjusted at 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 at 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, so that the three probes (two first probes 2 and one second probe 3) can be distributed in three dimensions around the cabinet 16 to form an array detection system, thereby positioning the leakage discharge position of the cabinet 16.

[0060] Embodiment two: the technical scheme of this embodiment is different from that of embodiment one, as shown in Figure 13As shown, the second hinge ear 26 is rotationally connected with the telescopic end of the second telescopic rod 17, one end of the worm 27 is fixedly connected with the fourth gear 30, one end of the second telescopic rod 17 is fixedly connected with the fifth gear 31, the fourth gear 30 is engaged with the fifth gear 31, through the scheme, when the second motor 28 drives the third telescopic rod 18 to rotate around the second hinge ear 26, through the meshing effect of the fourth gear 30 and the fifth gear 31, the second hinge ear 26 and the second telescopic rod 17 can be synchronously rotated, compared with the scheme of the first embodiment, the advantages are: the position of the third telescopic rod 18 can be adjusted to the detection mode by the second motor 28 at one time, and then the specific position of the second probe 3 is adjusted through the rotation of the second telescopic rod 17 and the telescopic adjustment 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 rotating structure; through the gear linkage design of the second hinge structure, the third telescopic rod 18 can be adjusted to the detection mode at one time.

[0061] Embodiment three: the technical scheme of the embodiment is different from that of the first embodiment or the second embodiment, as shown in Figure 14 , Figure 15 As shown, the inside of the accommodating cavity 19 is provided with a scraping block 32, 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 with the accommodating cavity 19 through a reciprocating assembly, the reciprocating assembly is the same direction with the first telescopic rod 5, so that the scraping block 32 and the movable end 11 of the first probe move reversely; through the setting of the scraping block 32 and the reciprocating assembly, automatic scraping and cleaning are realized by cooperating with the probe telescoping; through the setting of 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 in the inside.

[0062] Continuing to refer to Figure 14 , Figure 15The reciprocating assembly comprises a second rack 33, the end of the second rack 33 is fixed with a scraping block 32, one end of the scraping block 32 is connected with a compression spring 34, the side wall of the accommodating cavity 19 is provided with a sliding groove 41, the scraping block 32 is slidably connected with the sliding groove 41, the other end of the compression spring 34 is fixedly connected with the inner wall of the sliding groove 41, one end of the scraping block 32 is further connected with a limiting rod 40, the limiting rod 40 is slidably connected with a limiting hole (not shown in the figure) in the inner wall of the sliding groove 41, a third rack 35 is arranged below the second rack 33, the bottom of the third rack 35 is connected with a sliding rail 36, the sliding rail 36 is slidably connected with the sliding groove 41, one end of the sliding rail 36 close to the first probe 2 is connected with a driven shifting block 37, the first probe 2 is connected with a driving shifting block 38, the first probe 2 and the driving shifting block 38 are moved by the first telescopic rod 5, so that the driven shifting block 37, the sliding rail 36 and the third rack 35 can slide to one side, then under the meshing action of the sixth gear 39, the second rack 33 and the scraping block 32 move to the direction of the first probe 2, so as to play a scraping effect on the first probe 2, then when the first telescopic rod 5 extends to the direction of the first probe 2, under the action of the compression spring 34, the scraping block 32 moves to the opposite direction away from the first probe 2, so that the scraping block 32 reciprocates to continuously scrape and clean the movable end 11 of the first probe 2.

[0063] It should be noted that the first telescopic rod 5, the second telescopic rod 17 and the third telescopic rod 18 in the above scheme are electric telescopic rods or hydraulic telescopic rods.

[0064] The above scheme is used as follows:

[0065] S1, initial deployment and adsorption fixation: when the detection starts, the main beam 4 of the mounting frame is firmly adsorbed on the outer wall of the cabinet 16 through the adsorption structure 6, so as 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, so as 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 storage state and are 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 contraction groove 20, so as to realize compact storage.

[0066] S2, probe position adjustment:

[0067] S2.1, first probe deployment: the first probe 2 position is adjusted through the first hinged structure, the electric push rod 10 pushes the first rack 9 to move, drives the first gear 8 engaged therewith to rotate, so that the first hinged lug 7 rotates; then the first telescopic rod 5 starts to work, drives the first probe 2 to extend, the telescopic part 13 is energized to contract, the movable end 11 is out of the fixed shell 12, the sliding block 15 and the ring groove 14 slide to ensure the direction is stable, the two first probes 2 are parallel to cover the side of the cabinet 16, and any point can be accurately positioned through telescopic and angle change.

[0068] S2.2, second probe deployment: the second telescopic rod 17 rotates under bearing support, the second hinged structure starts: the second motor 28 drives the worm 27 to rotate, engages the worm wheel 29 to rotate, and makes the third telescopic rod 18 vertically expand.

[0069] S2.3, in embodiment two, the fourth gear 30 and the fifth gear 31 are linked to further synchronize the rotation of the second hinged ear 26, and a single operation can complete the adjustment. The second probe 3 is fixed at the end of the third telescopic rod 18, covers the back of the cabinet 16 through telescopic and rotation, and the movable end 11 faces the telescopic rod direction.

[0070] S3, array detection execution: three probes (two first probes 2 and one second probe 3) form a stereoscopic array: two first probes 2 form a horizontal coverage on the side of the cabinet 16, and the second probe 3 forms a vertical detection on the back. The detector 1 reads the probe signal through the interface and analyzes the leakage and discharge position in real time. The probe position can be dynamically adjusted, and the first hinged structure of the first telescopic rod 5 and the second hinged structure of the second telescopic rod 17 provide multiple degrees of freedom to ensure no dead angle detection.

[0071] S4, cleaning and maintenance: when the first probe 2 is retracted, 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 towards the movable end 11, realizing scraping cleaning; when the first probe 2 is extended, the compression spring 34 rebounds, making the scraping block 32 move reversely in the sliding groove 41, and reciprocating action ensures continuous cleaning; prevents dirt from affecting detection accuracy, especially suitable for harsh environments.

[0072] S5, folding and storage: detection is completed, and the probe is withdrawn: the first telescopic rod 5 is hinged and folded back to the accommodating cavity 19; the second telescopic rod 17 and the third telescopic rod 18 are retracted and collected in the contraction groove 20 through reverse adjustment; all structures are flatly stored, the main beam 4 is released by the adsorption structure 6; the device occupies small space, is convenient for transportation and next use.

[0073] In summary, the two first probes 2 and one second probe 3 are achieved three-dimensional distribution through the mounting frame, so that the probes cover the side and back of the gas insulated cabinet 16 from different angles, and the detection accuracy is improved. 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; the first probe 2 can be moved on the side of the cabinet 16 through the first telescopic rod 5 and the first hinged structure; the second probe 3 is finely adjusted on the back of the cabinet 16 through the telescopic and rotating structure; the third telescopic rod 18 is adjusted to the detection mode through a single operation by adopting the gear linkage design of the second hinged structure; the automatic scraping and cleaning are realized by setting the scraping block 32 and the reciprocating assembly in cooperation with the probe extension; 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 in the inside by setting the accommodating cavity 19 and the contraction groove 20.

[0074] In the description of the present specification, the description referring to the terms "one embodiment", "an example", "a specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0075] The terms "first", "second", "third", "fourth" and the like used in the description and claims of the present application, and the above-described drawings (if any), are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented, for example, in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof, are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not necessarily limit to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to the process, method, product or device.

[0076] Parallel: The parallel defined by the present application is not limited to absolute parallel, the definition of this parallel can be understood as substantially parallel, allowing not absolute parallel caused by factors such as assembly tolerance, design tolerance, structure flatness, allowing the existence of a small angle range of error, for example, within 10 degrees of assembly error range, can be understood as parallel relationship.

[0077] Vertical: The vertical defined in the present application is not limited to the absolute vertical intersecting (the angle is 90 degrees) relationship, and allows the relationship that is not the absolute vertical intersecting due to factors such as assembly tolerance, design tolerance, and structure flatness influence, and allows the existence of a small angle range of error, for example, the assembly error range of 80 degrees to 100 degrees, which can be understood as the vertical relationship.

[0078] The term "a plurality of" as used herein means two or more. The term "and / or" as used herein merely means one or all of the associated objects, for example, A and / or B can mean: A alone, A and B together, and B alone.

[0079] In the embodiments of the present application or implied, the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application. In the description of the embodiments of the present application, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0080] The preferred embodiments of the application disclosed above are only used to help explain the application. The preferred embodiments do not describe all the details, nor limit the application to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of the present application. The present application selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present application, so that those skilled in the art can well understand and utilize the present application. The present application 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 one second probe, forming an array-type detection system, characterized in that: The first and second probes are connected by a mounting bracket; The mounting frame includes a main beam and two first telescopic rods. The main beam is attached to the outer wall of the cabinet by an adsorption structure. The first telescopic rods are hinged to the main beam by a first hinge structure to achieve folding and storage. Two first probes are respectively installed at 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 component between the movable end and the fixed shell. The two first probes cover the side of the cabinet under the action of the first telescopic rod and the first hinge structure. A second telescopic rod is also 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 at 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 faces the second telescopic rod. The second hinge structure includes a second hinge ear connected to the telescopic end of the second telescopic rod, a worm gear rotatably connected to the middle of the second hinge ear, a second motor fixedly installed on the outer wall of the second hinge ear, the output shaft of the second motor connected to the worm gear, and one end of the third telescopic rod hinged to the second hinge ear, with a worm wheel fixedly connected at the hinge position, the worm wheel meshing with the worm gear. The second hinge lug is rotatably connected to the telescopic end of the second telescopic rod. One end of the worm gear is fixedly connected to the fourth gear, and one end of the second telescopic rod is fixedly connected to the fifth gear. The fourth gear and the fifth gear mesh. The first telescopic rod, the second telescopic rod, and the third telescopic rod are on the same plane when folded. The two first telescopic rods and the second telescopic rod are always on the same plane; During the detection state, the third telescopic rod is perpendicular to the second telescopic rod; The cavity is equipped with a scraping block. When the first probe is retracted, the scraping surface of the scraping block is adjacent to the movable end of the first probe. The scraping block is connected to the 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. Two first probes and one second probe form a three-dimensional array. The two first probes cover the sides of the cabinet, and the second probe performs vertical detection on the back.

2. The detection device based on a gas-insulated ring main unit as described in claim 1, characterized in that: The main beam has cavities at both the top and bottom for housing the first telescopic rod and the first probe, and the cavities are designed to be connected to the top and bottom ends of the main beam.

3. The detection device based on a gas-insulated ring main unit as described in claim 1, characterized in that: The reciprocating assembly includes a second rack fixed to the scraping block, a compression spring connected to one end of the scraping block, a sliding groove provided on the side wall of the receiving cavity, the scraping block being slidably connected to the sliding groove, the other end of the compression spring being fixedly connected to the inner wall of the sliding groove, a third rack provided below the second rack, a driven lever connected to one end of the slide rail near the first probe, a drive lever connected to the second probe, and the second rack and the third rack being meshed by a sixth gear.

4. The detection device based on a gas-insulated ring main unit as described in claim 1, characterized in that: The first hinge structure includes a first hinge lug fixedly connected to the tail end of the first telescopic rod, a first gear connected to the middle of the first hinge lug, a first rack provided below the first gear, the first rack meshing with the first gear, and one end of the first rack being fixed to the main beam via an electric push rod.

5. The detection device based on a gas-insulated ring main unit as described in claim 1, characterized in that: The rear end of the main beam is equipped with a contraction groove, which is used to accommodate the second telescopic rod, the third telescopic rod, and the second probe.

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