A GIL right-angle turning device

Abstract

The application discloses a GIL right-angle turning device, and belongs to the technical field of gas insulated transmission lines. The device aims to solve the problems of difficult butt joint, low installation efficiency and influence on operation stability caused by the misalignment of the right-angle conductor and the shell in the existing structure. The device comprises a shell, a right-angle conductor, an insulation assembly and a limiting and guiding assembly. The shell extends along a first direction and a second direction and forms a right-angle turning accommodating cavity. The two ends of the shell are respectively provided with a first flange end face and a second flange end face. The right-angle conductor is arranged in the accommodating cavity through the insulation assembly. The limiting and guiding assembly comprises a positioning member, a guiding member and a connecting member. The positioning member is connected with the first flange end face and / or the second flange end face. The guiding member is connected with the positioning member. The connecting member is connected with the right-angle conductor through the guiding member. The guiding member and the connecting member apply a pulling force to the right-angle conductor in the direction of the positioning member, and limit the deflection of the right-angle conductor along the first direction and / or the second direction, so that the right-angle conductor abuts against the positioning member and is coaxial with the shell.

Description

Technical Field

[0001] This invention belongs to the field of gas-insulated transmission line technology, specifically relating to a GIL right-angle turning device. Background Technology

[0002] Gas-insulated transmission lines (GILs) are power transmission devices that enclose conductors within metal conduits and use high-voltage insulating gas as the insulating medium. They offer advantages such as large transmission capacity, high reliability, long service life, and electromagnetic environment friendliness, and are widely used in high-capacity power transmission in special scenarios such as hydropower stations, substations, and underground utility tunnels. GIL products are typically composed of various basic units, including straight-line units, corner units, and isolation units. These units are mechanically connected via flanges, while the conductors within each unit are electrically connected via contact points. The corner unit is a key component in GIL lines that enables a 90-degree change in transmission direction.

[0003] In the prior art, the corner unit is equipped with a right-angle turning conductor formed by bending an aluminum alloy tube, and is installed inside the GIL shell through a three-post insulator. The right-angle turning conductor is embedded in the central hole of the three-post insulator, and the three-post insulator provides radial support to achieve the coaxial arrangement of the shell and the conductor. The interior is filled with insulating gas.

[0004] However, in the existing corner unit assembly process, the right-angle conductor relies solely on the three-post insulator for radial support. After installation, when subjected to gravity or unbalanced external forces, it is prone to circumferential rotation or axial tilting, causing the conductor to deviate from its designed position. Furthermore, the contact seats at both ends of the right-angle conductor and the cylindrical flanges at both ends of the housing cannot guarantee coaxiality. When the corner unit is docked with other GIL components, such as the linear unit or isolation unit, the conductor and housing are not aligned precisely, making docking difficult. At the same time, due to the misalignment of the conductor and housing, the contacts and contact seats of adjacent units may collide at an angle, causing mechanical damage to the contact springs, contact fingers, or contact seats. This directly affects the conductivity and operational reliability of the product, and in severe cases, may even cause irreversible damage, rendering the entire GIL module unusable. Summary of the Invention

[0005] (a) Purpose of the invention The purpose of this invention is to provide a GIL right-angle turning device, which aims to solve the problems of poor support stability of the right-angle conductor in the existing structure, resulting in difficulties in docking, low installation efficiency, and impact on operational stability due to the misalignment of the right-angle conductor and the outer shell.

[0006] (II) Technical Solution To address the above problems, the present invention provides a GIL right-angle turning device, the device comprising: a housing, a right-angle conductor, an insulating component, and a limiting and guiding component; The outer shell extends along a first direction and a second direction and forms a receiving cavity with a right-angle turn for accommodating and supporting the right-angle conductor and insulating components. The two ends of the outer shell have a first flange end face and a second flange end face, respectively. The right-angle conductor is disposed in the receiving cavity through the insulating component, and the right-angle conductor is used to realize the right-angle turn transmission of electrical energy; The limiting and guiding assembly includes a positioning element, a guide element, and a connecting element. The positioning element is connected to the first flange end face and / or the second flange end face. The guide element is connected to the positioning element. The connecting element passes through the guide element and is connected to the right-angle conductor. The guide and connector apply a pulling force to the right-angle conductor in the direction of the positioning member, causing the right-angle conductor to abut against the positioning member. The guide and connector restrict the right-angle conductor from deflecting along the first direction and / or the second direction, so that the right-angle conductor is coaxially aligned with the outer shell.

[0007] Preferably, the positioning element includes a flange connection portion and a limiting cylinder portion. One end of the limiting cylinder portion is fixedly connected to the side of the flange connection portion. The limiting cylinder portion and the flange connection portion are arranged coaxially. The flange connection portion is connected to the first flange end face or the second flange end face. The other end of the limiting cylinder portion extends into the receiving cavity and abuts against the contact seat of the right-angle conductor.

[0008] Preferably, the flange connection part is a circular plate structure, and the outer ring of the flange connection part has a plurality of first mounting holes distributed circumferentially. The position of each first mounting hole corresponds one-to-one with the position of the flange mounting hole on the first flange end face or the second flange end face. The flange connection part is connected to the first flange end face or the second flange end face by first fasteners passing through the first mounting holes and the flange mounting holes.

[0009] Preferably, the outer diameter of the limiting cylinder is adapted to the inner diameter of the contact seat, the outer cylindrical surface of the limiting cylinder and the inner cylindrical surface of the contact seat form a clearance fit, and the radial constraint of the limiting cylinder on the contact seat restricts the right-angle conductor from deflecting in a plane perpendicular to the first direction or the second direction.

[0010] Preferably, the axial length of the limiting cylinder is adapted to the distance from the bottom surface of the contact seat to the first flange end face or the second flange end face. When the right-angle conductor is aligned, the end face of the limiting cylinder away from the flange connection part abuts against the bottom surface of the contact seat.

[0011] Preferably, the inner ring area of ​​the flange connection has a plurality of second mounting holes distributed circumferentially, and the guide has a plurality of third mounting holes formed thereon. The second mounting holes and the third mounting holes are arranged in a one-to-one correspondence. The guide is connected to the flange connection by a second fastener passing through the second mounting holes and the third mounting holes.

[0012] Preferably, the guide member is provided with at least two guide holes, the bottom of the contact seat is provided with a connecting hole, the connecting hole and the guide hole are provided in a one-to-one correspondence, the connector passes through the guide hole, and the end of the connector is connected to the connecting hole.

[0013] Preferably, the connector comprises at least two guide bolts, each guide bolt including a threaded section and a bolt head. The threaded section passes through the guide and is threaded into the connecting hole. The diameter of the bolt head is larger than the diameter of the guide hole on the guide. The inner end face of the bolt head is used to abut against the outer end face of the guide to provide a tension fulcrum.

[0014] Preferably, the insulating assembly includes a central sleeve and a plurality of radial legs. The central sleeve is sleeved on the right-angle conductor, and the plurality of radial legs are evenly arranged along the outer periphery of the central sleeve. The outer end of each radial leg abuts against the inner wall of the receiving cavity of the housing.

[0015] Preferably, the inner side of the housing is provided with multiple slide rails, and each of the multiple radial legs is provided with a slider on the side near the housing, the slider slidingly engaging with the slide rails.

[0016] (III) Beneficial Effects The above-described technical solution of the present invention has the following beneficial technical effects: 1. A limit guide assembly is set up so that the positioning component, guide component and connector work together to apply a pulling force to the right-angle conductor pointing towards the positioning component, forcing the contact seat of the right-angle conductor to abut against the positioning component, thus achieving forced limiting of the right-angle conductor. The pulling force of the connector actively pulls the right-angle conductor towards the positioning component, so that the right-angle conductor always stays in the designed position after assembly, ensuring the coaxiality of the conductor and the shell, and ensuring that subsequent units can be smoothly connected during use.

[0017] 2. The positioning component of the limit guide assembly achieves its own positioning by connecting to the flange end face of the housing. The positioning component and the flange end face of the housing have a defined coaxial relationship. The connecting component extends into the housing and cooperates with the right-angle conductor to achieve precise positioning of the right-angle conductor relative to the positioning component.

[0018] 3. By ensuring precise coaxiality between the right-angle conductor and the outer casing through the limiting guide component, when the GIL right-angle turning device of this invention docks with other GIL units, the contact seat at the end of the right-angle conductor can be precisely aligned with the contact of the adjacent unit conductor in the axial direction. On the one hand, this avoids mechanical damage such as contact finger deformation, spring breakage, and scratches on the inner wall of the contact seat caused by collision, ensuring the contact pressure and contact area between the contact and the contact seat, and ensuring the reliability and current carrying capacity of the conductive connection. On the other hand, it also avoids irreversible damage such as contact finger jamming and contact seat inner hole deformation caused by contact misalignment, extending the service life of the product. At the same time, the precise insertion and matching between the contact and the contact seat keeps the contact resistance stable at a low level, reduces contact heat generation, and further improves the operational reliability of the product.

[0019] 4. The standardization and streamlined alignment operation of right-angle conductors is achieved through the limit guide component. The assembly personnel only need to install the positioning part on the flange end face of the shell, connect the guide part to the positioning part, pass the connecting part through the guide part and connect it to the right-angle conductor, and then tighten the connecting part in sequence to complete the alignment. This simplifies the assembly process. The limit guide component can be installed in place in one go and ensure the alignment accuracy, thus improving the assembly efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a GIL right-angle turning device provided by the present invention; Figure 2 This is an exploded end view of a GIL right-angle turning device provided by the present invention; Figure 3 yes Figure 2 A schematic enlarged view of part A in the middle; Figure 4 This is a schematic diagram of the positioning component structure of the GIL right-angle turning device provided by the present invention; Figure 5 This is a schematic diagram of the guide structure of the GIL right-angle turning device provided by the present invention.

[0021] Figure label: 1. Outer shell; 1a. Receiving cavity; 11. First flange end face; 11a. Flange mounting hole; 12. Second flange end face; 13. Slide rail; 2. Right-angle conductor; 21. Contact base; 21a. Connecting hole; 3. Insulating components; 31. Center sleeve; 32. Radial support leg; 321. Slider; 4. Limiting and guiding components; 41. Positioning element; 411. Flange connection; 411a. First mounting hole; 411b. Second mounting hole; 412. Limiting sleeve; 42. Guide component; 42a. Third mounting hole; 42b. Guide hole; 43. Connectors; 5. First fastener; 6. Second fastener; X, the first direction; Y, the second direction. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and the accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0023] The accompanying drawings illustrate layer structure diagrams according to embodiments of the present invention. These drawings are not to scale, and some details have been enlarged for clarity, and some details may have been omitted. The shapes of the various regions and layers shown in the drawings, as well as their relative sizes and positional relationships, are merely exemplary and may deviate from reality due to manufacturing tolerances or technical limitations. Furthermore, those skilled in the art can design regions / layers with different shapes, sizes, and relative positions as needed.

[0024] Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0025] In the description of this invention, it should be noted that the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] Combination Figures 1 to 5This invention provides a GIL right-angle turning device, comprising: a housing 1, a right-angle conductor 2, an insulating component 3, and a limiting and guiding component 4; the housing 1 extends along a first direction X and a second direction Y and forms a right-angle turning receiving cavity 1a for receiving and supporting the right-angle conductor 2 and the insulating component 3, and the two ends of the housing 1 respectively have a first flange end face 11 and a second flange end face 12; the right-angle conductor 2 is disposed in the receiving cavity 1a through the insulating component 3, and the right-angle conductor 2 is used to realize the right-angle turning transmission of electrical energy; the limiting and guiding component 4 includes... The device includes a positioning element 41, a guide element 42, and a connecting element 43. The positioning element 41 is connected to the first flange end face 11 and / or the second flange end face 12. The guide element 42 is connected to the positioning element 41. The connecting element 43 passes through the guide element 42 and is connected to the right-angle conductor 2. The guide element 42 and the connecting element 43 apply a pulling force to the right-angle conductor 2 in the direction of the positioning element 41, so that the right-angle conductor 2 abuts against the positioning element 41. The guide element 42 and the connecting element 43 restrict the right-angle conductor 2 from deflecting along the first direction X and / or the second direction Y, so that the right-angle conductor 2 is coaxially aligned with the outer casing 1.

[0027] Specifically, the outer shell 1, as the basic supporting component of the GIL right-angle turning device, extends along the first direction X and the second direction Y to form a right-angle turning receiving cavity 1a. This cavity houses and supports the right-angle conductor 2 and the insulation component 3, while also providing an interface for flange connection with other external GIL units, such as linear units and isolation units. The outer shell 1 has a first flange end face 11 and a second flange end face 12 at both ends, used for mechanical connection and sealing with adjacent GIL units. The right-angle conductor 2, as the core component for power transmission, is housed within the receiving cavity 1a of the outer shell 1 via the insulation component 3. This allows for right-angle turning of power transmission; that is, the current input along the first direction X is turned at a right angle and output along the second direction Y, completing a 90° change in transmission direction. The insulation component 3 is located between the outer shell 1 and the right-angle conductor 2, used to fix and support the right-angle conductor 2 inside the receiving cavity 1a of the outer shell 1, while also providing electrical insulation to ensure the insulation distance and insulation performance between the high-voltage conductor and the grounded outer shell 1. The limiting guide assembly 4 includes a positioning element 41, a guide element 42, and a connecting element 43. The positioning element 41 is connected to the first flange end face 11 and / or the second flange end face 12 of the housing 1 to achieve the overall positioning and installation of the limiting guide assembly 4 on the housing 1. The guide element 42 is connected to the positioning element 41 to provide guiding support for the connecting element 43. The connecting element 43 passes through the guide element 42 and is connected to the right-angle conductor 2. Through the cooperation of the guide element 42 and the connecting element 43, a pulling force is applied to the right-angle conductor 2 in the direction of the positioning element 41, so that the right-angle conductor 2 abuts against the positioning element 41, thereby limiting the deflection of the right-angle conductor 2 along the first direction X and / or the second direction Y, and achieving coaxial alignment between the right-angle conductor 2 and the housing 1.

[0028] It should be noted that the limiting and guiding component 4 here can be a single set, located on the first flange end face 11 or the second flange end face 12, which can cooperate with the insulating component 3 to stably limit the right-angle conductor 2 and ensure the coaxiality of the insulating conductor and the outer shell 1; the limiting and guiding component 4 can also be two sets, respectively located on the first flange end face 11 and the second flange end face 12, to further improve the overall stability. In practical applications, those skilled in the art can make adaptive adjustments according to structural requirements. The specific structural form of the positioning component 41 is not limited here. It can be a plate-like structure that only connects to the flange end, in which case the end of the right-angle conductor 2 directly abuts against the side of the positioning component 41 after installation; or it can be a protruding structure on the side of the positioning component 41 that extends into the interior of the outer shell 1 and abuts against the contact seat 21 of the right-angle conductor 2, thereby limiting the further movement and deflection of the right-angle conductor 2 along the first direction X and / or the second direction Y.

[0029] With this configuration, the positioning element 41, guide element 42, and connector 43 in the limiting and guiding assembly 4 work together to apply a pulling force towards the positioning element 41 to the right-angle conductor 2, forcing the contact seat 21 of the right-angle conductor 2 to abut against the positioning element 41, thus achieving forced limiting of the right-angle conductor 2. The pulling force of the connector 43 actively pulls the right-angle conductor 2 towards the positioning element 41, ensuring that the right-angle conductor 2 remains in the designed position after assembly, ensuring the coaxiality of the conductor and the outer shell 1, and guaranteeing smooth docking of subsequent units during use. The positioning element 41 of the limiting and guiding assembly 4 achieves its own positioning by connecting to the flange end face of the outer shell 1. The positioning element 41 and the flange end face of the outer shell 1 have a defined coaxial relationship. The connector 43 extends into the inner shell 1 and cooperates with the right-angle conductor 2 to achieve precise positioning of the right-angle conductor 2 relative to the positioning element 41. After the right-angle conductor 2 and the outer shell 1 are precisely coaxial by the limiting guide component 4, when the GIL right-angle turning device of the present invention is docked with other GIL units, the contact seat 21 at the end of the right-angle conductor 2 can be precisely aligned with the contact of the adjacent unit conductor in the axial direction. On the one hand, it avoids mechanical damage such as contact finger deformation, spring breakage, and scratches on the inner wall of the contact seat 21 caused by collision, and ensures the contact pressure and contact area between the contact and the contact seat 21, ensuring the reliability of the conductive connection and the current carrying capacity. On the other hand, it also avoids irreversible damage such as contact finger jamming and deformation of the inner hole of the contact seat 21 caused by the misaligned insertion of the contact, extending the service life of the product. At the same time, the precise insertion and matching between the contact and the contact seat 21 makes the contact resistance stable at a low level, reduces contact heat generation, and further improves the operational reliability of the product. The positioning guide assembly 4 enables a standardized and streamlined alignment operation for the right-angle conductor 2. The assembly personnel only need to install the positioning part 41 on the flange end face of the housing 1, connect the guide part 42 to the positioning part 41, pass the connecting part 43 through the guide part 42 and connect it to the right-angle conductor 2, and then tighten the connecting part 43 in sequence to complete the alignment. This simplifies the assembly process, and the positioning guide assembly 4 can be installed in place in one go and ensure alignment accuracy, thereby improving assembly efficiency.

[0030] In a preferred embodiment, the positioning member 41 includes a flange connection portion 411 and a limiting cylinder portion 412. One end of the limiting cylinder portion 412 is fixedly connected to the side of the flange connection portion 411. The limiting cylinder portion 412 and the flange connection portion 411 are arranged coaxially. The flange connection portion 411 is connected to the first flange end face 11 or the second flange end face 12. The other end of the limiting cylinder portion 412 extends into the receiving cavity 1a and abuts against the contact seat 21 of the right-angle conductor 2.

[0031] Specifically, the flange connection 411 serves as the connection structure between the positioning element 41 and the flange end face of the housing 1. It preferably adopts an annular plate structure to achieve a detachable and fixed connection between the positioning element 41 and the first flange end face 11 or the second flange end face 12 of the housing 1, precisely installing the positioning element 41 at the flange end face of the housing 1, providing an installation and positioning reference for the entire limiting and guiding assembly 4. The limiting cylinder 412, as a key functional structure in the positioning element 41 that directly forms a fit with the contact seat 21 of the right-angle conductor 2, has one end fixedly connected to the side of the flange connection 411 (e.g., by welding), and the other end extending into the receiving cavity 1a of the housing 1. The limiting cylinder 412 is coaxially arranged with the flange connection 411, forming radial and axial limiting fits with the contact seat 21 of the right-angle conductor 2, constraining the position and orientation of the right-angle conductor 2. In the radial direction, the outer cylindrical surface of the limiting cylinder 412 forms a radial constraint on the inner cylindrical surface of the contact seat 21. When the right-angle conductor 2 tends to deflect radially under the action of gravity or unbalanced external force, the inner wall of the contact seat 21 contacts the outer wall of the limiting cylinder 412, and the limiting cylinder 412 provides a reverse support force to prevent the contact seat 21 from continuing to deflect radially, thereby ensuring the coaxiality of the right-angle conductor 2 and the outer shell 1. In the axial direction, the length of the limiting cylinder 412 is designed to be equal to the length of the contact. The distance from the bottom surface of the contact seat 21 to the flange end face of the outer shell 1 is matched. When the connector 43 pulls the right-angle conductor 2 toward the positioning member 41, the bottom surface of the contact seat 21 gradually approaches the end face of the limiting cylinder 412. Finally, the bottom surface of the contact seat 21 abuts against the end face of the limiting cylinder 412. The limiting cylinder 412 plays a limiting role in the axial movement of the right-angle conductor 2, preventing the right-angle conductor 2 from continuing to move toward the positioning member 41, thereby limiting the axial position of the right-angle conductor 2 to the designed position.

[0032] With this configuration, after the flange connection 411 is installed on the flange end face of the housing 1, its central axis coincides with the central axis of the flange end face of the housing 1. The limiting cylinder 412 is coaxially arranged with the flange connection 411. The central axis of the limiting cylinder 412 automatically coincides with the central axis of the flange end face of the housing 1 after the flange connection 411 is installed. No coaxiality calibration using measuring tools is required during installation, simplifying the installation operation. The outer surface of the limiting cylinder 412 has a defined geometric relationship with the end face, and the axis of the outer surface is perpendicular to the end face, ensuring the consistency between the radial positioning reference and the axial positioning reference, reducing the number of parts, and simplifying the structure of the positioning component 41. The extension direction of the limiting cylinder 412 is consistent with the axial direction of the corresponding segment of the right-angle conductor 2. The limiting cylinder 412 can smoothly enter the contact seat 21 axially without interference or jamming. The fit between the limiting cylinder 412 and the contact seat 21 extends axially, which helps improve the stability of radial positioning and the accuracy of guidance.

[0033] In a preferred embodiment, the right-angle conductor 2 includes a first conductor and a second conductor. The first conductor extends along a first direction X, and the second conductor extends along a second direction Y. A first contact seat is provided at the end of the first conductor, and a second contact seat is provided at the end of the second conductor. The first contact seat is located at the end of the first direction X, and the second contact seat is located at the end of the second direction Y.

[0034] Specifically, a first conductor extends along a first direction X for transmitting electrical energy in the first direction X, and a second conductor extends along a second direction Y for transmitting electrical energy in the second direction Y. A first contact seat is provided at the end of the first conductor, located at the end of the first direction X, for insertion and conduction with the conductor of the adjacent GIL unit in the first direction X. A second contact seat is provided at the end of the second conductor, located at the end of the second direction Y, for insertion and conduction with the conductor of the adjacent GIL unit in the second direction Y. The first and second conductors are connected to form an integral right-angled conductive component. During electrical energy transmission, current flows in along the first direction X through the first conductor, undergoes a right-angle change in current direction through the connection area between the first and second conductors, and then flows out along the second direction Y through the second conductor, thus completing the right-angle turn in electrical energy transmission. The first and second contact seats serve as interfaces for electrical connection between the two ends of the right-angle conductor 2 and external conductors. During the alignment process, the limiting cylinder 412 of the positioning member 41 engages with at least one of the first contact seat and the second contact seat. The limiting cylinder 412 provides radial constraint and axial limitation to the contact seat 21, ensuring that the first conductor and the second conductor are coaxial with their corresponding outer casing 1. When the GIL right-angle turning device connects to other GIL units, the first contact seat is coaxially inserted with the contact of the adjacent unit conductor along the first direction X, and the second contact seat is coaxially inserted with the contact of another adjacent unit conductor along the second direction Y, thus achieving smooth connection between adjacent units in the entire GIL circuit.

[0035] With this configuration, in the integrated right-angle conductive structure, the current flows from the first conductor to the second conductor, always within the same conductive material. For high-voltage, high-current transmission, the resistance along the current path is evenly distributed, avoiding localized hot spots and ensuring stable conductivity during long-term operation. The first contact seat is located at the end of the first direction X and faces the far end of the first direction X, while the second contact seat is located at the end of the second direction Y and faces the far end of the second direction Y. The opening directions of the two contact seats 21 are aligned with the first direction X and the second direction Y, respectively, facilitating the connection member 43 of the limiting guide assembly 4 to pass directly into the contact seat 21 from outside the housing 1 through the guide member 42, thus improving docking efficiency. The connection member 43 of the limiting guide assembly 4 extends along the first direction X or the second direction Y, and the direction of the applied tension is aligned with the axial direction of the corresponding segment of the right-angle conductor 2. The tension acts entirely on the right-angle conductor 2 in the axial direction, allowing the right-angle conductor 2 to move smoothly during the tension process.

[0036] In a preferred embodiment, the flange connection part 411 is a circular plate structure. The outer ring of the flange connection part 411 has a plurality of first mounting holes 411a distributed circumferentially. The position of each first mounting hole 411a corresponds one-to-one with the position of the flange mounting hole 11a on the first flange end face 11 or the second flange end face 12. The flange connection part 411 is connected to the first flange end face 11 or the second flange end face 12 by first fasteners 5 passing through the first mounting holes 411a and the flange mounting holes 11a.

[0037] Specifically, the flange connection part 411 is the part of the positioning member 41 that is directly connected to the flange end face of the outer shell 1. It has a circular plate structure, and its external dimensions and the distribution of mounting holes are adapted to the flange end face of the outer shell 1. The outer ring of the flange connection part 411 has a plurality of first mounting holes 411a distributed circumferentially. The position of each first mounting hole 411a corresponds one-to-one with the position of the flange mounting hole 11a on the first flange end face 11 or the second flange end face 12 of the outer shell 1. The first fastener 5 passes through the first mounting hole 411a and the flange mounting hole 11a to connect the flange connection part 411 to the flange end face of the outer shell 1. During installation, the flange connection part 411 is fitted against the outer side of the flange end face of the outer shell 1. The flange connection part 411 is rotated so that each of the first mounting holes 411a on its outer ring aligns with the corresponding flange mounting holes 11a on the flange end face of the outer shell 1. Then, the first fasteners 5 are passed through the first mounting holes 411a and the flange mounting holes 11a in sequence and tightened, so that a tight surface contact fit is formed between the flange connection part 411 and the flange end face of the outer shell 1. The first mounting holes 411a are evenly distributed circumferentially on the outer ring of the flange connection part 411, and the center distance of each first mounting hole 411a is consistent with the center distance of the flange mounting holes 11a on the flange end face of the outer shell 1. When all the first fasteners 5 are installed in place, the central axis of the flange connection part 411 automatically coincides with the central axis of the flange end face of the outer shell 1.

[0038] With this configuration, after the annular plane of the flange connection part 411 is fitted with the flange end face of the outer shell 1, the contact area between the two is a complete annular surface. When the limiting guide assembly 4 is working, the force on the limiting cylinder part 412 is transmitted to the flange end face of the outer shell 1 through the flange connection part 411. Due to the large contact area of ​​the surface contact, the pressure per unit area is small, preventing local crushing or plastic deformation and ensuring the long-term reliability of the connection. The positional correspondence between the first mounting hole 411a and the flange mounting hole 11a includes circumferential angle and radial center distance positioning. When multiple first fasteners 5 are simultaneously inserted into the corresponding mounting holes, the position of the flange connection part 411 in the flange plane is uniquely determined. The circumferential angle is determined by the angular position of each mounting hole, and the radial position is determined by the center distance of the mounting holes, so that the flange connection part 411 is automatically aligned during installation, further improving installation efficiency. In addition, the tightening force of the fasteners is evenly distributed along the circumference, so that the flange connection part 411 is subjected to uniform compressive load. The force is consistent at all points on the annular plate surface of the flange connection part 411, ensuring that the axis of the limiting cylinder part 412 fixedly connected to it is perpendicular to the flange end face of the outer shell 1.

[0039] In a preferred embodiment, the outer diameter of the limiting cylinder 412 is adapted to the inner diameter of the contact seat 21, and the outer cylindrical surface of the limiting cylinder 412 forms a clearance fit with the inner cylindrical surface of the contact seat 21. The radial constraint of the limiting cylinder 412 on the contact seat 21 restricts the right-angle conductor 2 from deflecting in a plane perpendicular to the first direction X or the second direction Y.

[0040] Specifically, the limiting cylinder 412, as a structure in the positioning member 41 that directly engages with the contact seat 21 of the right-angle conductor 2, has an outer diameter that matches the inner diameter of the contact seat 21. The outer cylindrical surface of the limiting cylinder 412 and the inner cylindrical surface of the contact seat 21 form a clearance fit. The limiting cylinder 412 applies radial constraint to the contact seat 21, restricting the right-angle conductor 2 from deflecting along a plane perpendicular to the first direction X or the second direction Y. The outer diameter of the limiting cylinder 412 is controlled within a precise dimensional range during processing. This dimension is slightly smaller than the inner diameter of the contact seat 21, forming a fit with a small gap between them. In the working state of the limiting guide assembly 4, the limiting cylinder 412 extends into the interior of the contact seat 21, and a small concentric annular gap is maintained between the outer cylindrical surface of the limiting cylinder 412 and the inner cylindrical surface of the contact seat 21. When the right-angle conductor 2 is subjected to an external force and attempts to deflect or translate in a plane perpendicular to its axis, the inner cylindrical surface of the contact seat 21 will generate radial displacement. Since the outer cylindrical surface of the limiting cylinder 412 is fixed, when the radial displacement of the contact seat 21 reaches the limit value of the mating clearance, one side of the inner wall of the contact seat 21 contacts one side of the outer wall of the limiting cylinder 412. At this time, the limiting cylinder 412 applies a radial support force in the opposite direction to the contact seat 21, preventing the contact seat 21 from continuing to move in that direction.

[0041] With this configuration, the clearance of the gap fit is uniform in the circumferential direction. The gap between the inner cylindrical surface of the contact seat 21 and the outer cylindrical surface of the limiting cylinder 412 is the same in any angular direction. When the right-angle conductor 2 tends to shift in any radial direction, the gap between the inner wall of the contact seat 21 and the outer wall of the limiting cylinder 412 changes in the same way. The supporting force provided by the limiting cylinder 412 at the contact point is always consistent with the radial direction of that point. The contact seat 21 remains coaxial with the limiting cylinder 412 throughout the entire process of being pulled. By using a cylindrical surface surrounding gap fit, the outer circle of the limiting cylinder 412 completely wraps around the inner circle of the contact seat 21, forming a limiting stop in the 360° circumference. No matter whether the conductor shifts in any vertical direction (up, down, left, right), the inner wall of the contact seat 21 will immediately adhere to the outer wall of the cylinder to limit the displacement, and there is no constraint blind zone. The clearance fit can be selected from various fit levels such as micro-clear transition fit and low-clearance fit, which can not only ensure that the cylinder can be smoothly inserted into the contact seat 21 to complete the pre-installation, but also control the radial movement range of the contact seat 21 within a very small range, greatly reducing the conductor eccentricity amplitude in space, reducing the conductor deflection amount in advance before correction, and reducing the tension correction burden of the connector 43.

[0042] In a preferred embodiment, the axial length of the limiting cylinder 412 is adapted to the distance from the bottom surface of the contact seat 21 to the first flange end face 11 or the second flange end face 12. When the right-angle conductor 2 is aligned, the end face of the limiting cylinder 412 away from the flange connection 411 abuts against the bottom surface of the contact seat 21. The axial length of the limiting cylinder 412 limits the position of the right-angle conductor 2 along the first direction X or the second direction Y.

[0043] Specifically, the axial length of the limiting cylinder 412 is designed to match the distance from the bottom surface of the contact seat 21 to the first flange end face 11 or the second flange end face 12. The end face of the limiting cylinder 412 away from the flange connection 411 is used to abut against the bottom surface of the contact seat 21 when the right-angle conductor 2 is aligned. This abutment limits the position of the end point of the right-angle conductor 2 along the first direction X or the second direction Y. The axial length of the limiting cylinder 412 is precisely designed and machined based on the theoretical distance from the bottom surface of the contact seat 21 to the flange end face of the outer shell 1. During the operation of the limiting guide assembly 4, the connecting piece 43 pulls the right-angle conductor 2 towards the positioning piece 41. As the right-angle conductor 2 moves, the bottom surface of the contact seat 21 gradually approaches the end face of the limiting cylinder 412. When the pulling force of the connecting piece 43 causes the bottom surface of the contact seat 21 to move to contact with the end face of the limiting cylinder 412, the end face of the limiting cylinder 412 generates an axial reverse force on the bottom surface of the contact seat 21. This force is opposite to the pulling force of the connecting piece 43, and the right-angle conductor 2 can no longer move towards the positioning piece 41. The axial length of the limiting cylinder 412 is fixed. When the bottom surface of the contact seat 21 abuts against the end face of the limiting cylinder 412, the distance from the bottom surface of the contact seat 21 to the flange end face of the housing 1 is equal to the axial length of the limiting cylinder 412. This length is set in the design as the standard distance from the bottom surface of the contact seat 21 to the flange end face when the right-angle conductor 2 is in the design position.

[0044] With this setup, mechanical hard limiting is achieved by relying on the fixed length of the limiting cylinder, ensuring a unique and fixed axial endpoint for the conductor. This is unaffected by the tightening force of the connector 43 or differences in manual operation. More importantly, the length of the limiting cylinder can be standardized and processed uniformly according to different voltage levels and specifications of GIL conductors. Products of the same specification all use the same length of limiting cylinder, ensuring that the axial assembly dimensions of the conductor are completely uniform for each device. This eliminates the need for manual measurement and fine-tuning of axial distance, saving the post-assembly dimensional inspection process and improving the assembly and inspection efficiency of the production line. During the process of the connector 43 pulling the right-angle conductor 2 towards the positioning component 41, the operator only needs to continuously rotate the connector 43 until a significant increase in resistance or a sharp increase in knob torque is felt. This indicates that the bottom surface of the contact seat 21 has abutted against the end face of the limiting cylinder 412, and the right-angle conductor 2 has been aligned. Judging the assembly status through tactile perception is intuitive and simple. Operators can accurately judge the timing of assembly completion without using measuring tools, simplifying the operation process and improving assembly efficiency.

[0045] In a preferred embodiment, the inner ring area of ​​the flange connection portion 411 has a plurality of second mounting holes 411b distributed circumferentially, and the guide member 42 has a plurality of third mounting holes 42a formed thereon. The second mounting holes 411b and the third mounting holes 42a are arranged in a one-to-one correspondence. The guide member 42 is connected to the flange connection portion 411 by a second fastener 6 passing through the second mounting holes 411b and the third mounting holes 42a.

[0046] Specifically, the inner ring region of the flange connection 411 has a plurality of second mounting holes 411b distributed circumferentially for engaging with the third mounting holes 42a on the guide member 42. The guide member 42 is connected to the flange connection 411 by a second fastener 6. The guide member 42 has a plurality of third mounting holes 42a formed thereon, with the second mounting holes 411b and the third mounting holes 42a corresponding one-to-one. The guide member 42 is connected to the flange connection 411 by the second fastener 6 passing through the second mounting holes 411b and the third mounting holes 42a. The inner ring region of the flange connection 411 has a plurality of second mounting holes 411b, which are evenly distributed circumferentially on the flange connection 411 and located on the inner side of the first mounting holes 411a near the center. The guide member 42 has the same number of third mounting holes 42a at corresponding positions, with the second mounting holes 411b and the third mounting holes 42a corresponding to each other in position. When installing the guide 42, the guide 42 is fitted to the side surface of the flange connection 411 facing away from the inside of the housing 1, so that each third mounting hole 42a is aligned with the corresponding second mounting hole 411b on the flange connection 411. Then, the second fastener 6 is passed through the third mounting hole 42a and connected to the second mounting hole 411b. Each second fastener 6 is tightened to fix the guide 42 and the flange connection 411 together.

[0047] With this configuration, the guide 42 is detachably fixed to the flange connection 411 of the positioning member 41 via the second fastener 6. After the right-angle conductor 2 is aligned, the guide 42 can be removed from the positioning member 41 first, and then the positioning member 41 can be removed from the flange end face of the housing 1. This step-by-step disassembly method facilitates the operator to perform disassembly and assembly operations in a limited operating space. It also facilitates the cleaning, maintenance and upkeep of each component separately. During long-term use, if the guide hole 42b of the guide 42 is worn due to long-term friction with the connecting member 43, the guide 42 can be replaced separately without replacing the entire positioning member 41, thus reducing the maintenance cost of the tooling. On the flange connection part 411, the outer ring area is used to set the first mounting hole 411a for connecting with the flange end face of the outer shell 1, and the inner ring area is used to set the second mounting hole 411b for connecting with the guide member 42. This allows the two mounting holes with different functions to coexist without interfering with each other in the limited space of the flange connection part 411, making reasonable use of the area of ​​the flange connection part 411. At the same time, the layout of the inner and outer rings can keep the thickness of the flange connection part 411 uniform, which is beneficial to processing and manufacturing and uniform stress distribution. Both the second mounting hole 411b and the third mounting hole 42a are evenly distributed circumferentially. The clamping force generated after each second fastener 6 is tightened is evenly distributed circumferentially. The guide 42 is evenly pressed against the surface of the flange connection 411, and there will be no deviation phenomenon where one side is raised and the other side is pressed. This ensures the parallelism between the mounting plane of the guide 42 and the mounting plane of the flange connection 411, and thus ensures the parallelism between the axial direction of the guide hole 42b on the guide 42 and the axial direction of the limiting cylinder 412. This makes the direction of movement of the connector 43 after passing through the guide hole 42b consistent with the axial direction of the right-angle conductor 2, ensuring the accuracy of the tensile force direction.

[0048] In a preferred embodiment, the guide member 42 is provided with at least two guide holes 42b, the bottom of the contact seat 21 is provided with a connecting hole 21a, the connecting hole 21a and the guide hole 42b are provided in a one-to-one correspondence, the connector 43 passes through the guide hole 42b, and the end of the connector 43 is connected to the connecting hole 21a.

[0049] Specifically, the guide member 42 is provided with at least two guide holes 42b for the connector 43 to pass through and to guide the movement direction of the connector 43; the bottom of the contact seat 21 is provided with a connecting hole 21a, which corresponds to the guide holes 42b one by one. The connector 43 passes through the guide hole 42b, and the end of the connector 43 is engaged with the connecting hole 21a to fix the connector 43 and the contact seat 21 together. The positions of the at least two guide holes 42b on the guide member 42 correspond one-to-one with the positions of the connecting holes 21a at the bottom of the right-angle conductor 2 contact seat 21. The guide holes 42b penetrate the thickness direction of the guide member 42, and their inner diameter is adapted to the outer diameter of the connector 43 to constrain the passage direction of the connector 43. The connector 43 passes through the guide hole 42b from the outside of the guide 42. The end of the connector 43 extends from the inside of the guide 42 and extends into the connection hole 21a at the bottom of the contact seat 21, forming a mating connection with the connection hole 21a. Since the position of the guide hole 42b corresponds one-to-one with the position of the connection hole 21a, and the guide hole 42b has a constraining effect on the passing direction of the connector 43, the extension direction of the connector 43 after passing through the guide hole 42b is limited to be consistent with the axial direction of the guide hole 42b.

[0050] With this configuration, the inner diameter of the guide hole 42b is matched with the outer diameter of the connector 43, and a small fitting gap is used between them. This ensures that the axial direction of the connector 43 is aligned with the axial direction of the guide hole 42b after it passes through the guide hole 42b. This also ensures that the pulling force exerted by the connector 43 on the contact seat 21 is aligned with the axial direction of the end of the right-angle conductor 2, guaranteeing that the pulling force of the connector 43 can be fully used to pull the right-angle conductor 2 along its axial direction, avoiding misalignment or jamming of the right-angle conductor 2 due to component forces. Simultaneously, when the connector 43 passes through the guide hole 42b and the connecting hole 21a, the two parallel connectors 43 simultaneously constrain the contact seat 21, preventing the contact seat 21 from rotating around the axis of a single connector 43. This ensures that the right-angle conductor 2 does not rotate around its own axis during the pulling process, guaranteeing the correct angular direction of the contact seats 21 at both ends of the right-angle conductor 2 after alignment, facilitating insertion and mating with conductors of other GIL units.

[0051] In a preferred embodiment, the connector 43 consists of at least two guide bolts, each guide bolt including a threaded section and a bolt head. The threaded section passes through the guide member 42 and is threaded into the connecting hole 21a. The diameter of the bolt head is larger than the diameter of the guide hole 42b on the guide member 42. The inner end face of the bolt head is used to abut against the outer end face of the guide member 42 to provide a tension fulcrum.

[0052] Specifically, the connector 43 employs at least two guide bolts, each guide bolt comprising a threaded section and a bolt head. The threaded section passes through the guide member 42 and is threadedly connected to the connecting hole 21a. The diameter of the bolt head is larger than the diameter of the guide hole 42b on the guide member 42, and the inner end face of the bolt head abuts against the outer end face of the guide member 42 to provide a tension fulcrum. The threaded section of the guide bolt is provided with an external thread, which is adapted to the internal thread of the connecting hole 21a at the bottom of the contact seat 21, i.e., the threaded hole. During installation, the threaded section passes through the guide hole 42b from the outside of the guide member 42, and the end of the threaded section is screwed into the threaded hole at the bottom of the contact seat 21, and is fixedly connected to the contact seat 21 through threaded engagement. The diameter of the bolt head is larger than the diameter of the guide hole 42b. When the bolt moves away from the housing 1, the inner end face of the bolt head contacts the outer end face of the guide 42 and is blocked by the guide 42. The bolt cannot continue to move away from the housing 1. When the operator rotates the bolt head, the threaded engagement between the bolt shank and the threaded hole of the contact seat 21 generates an axial force. This force pulls the contact seat 21 toward the guide 42.

[0053] With this configuration, the head of the guide bolt is limited by the outer end face of the guide member 42, preventing the bolt's rotational motion from being converted into axial displacement relative to the guide member 42. Instead, the bolt's rotation relative to the threaded hole of the contact seat 21 drives the contact seat 21 to move axially relative to the bolt, converting the operator's applied rotational torque into an axial pulling force on the right-angle conductor 2. This simple and labor-saving operation can be completed with a conventional wrench, simplifying the process and improving assembly efficiency. Simultaneously, the threaded connection has a self-locking characteristic, meaning it will not loosen under external force. Once the bottom of the contact seat 21 abuts against the end face of the limiting cylinder 412 and the right-angle conductor 2 is aligned, even after the operator's force is removed, the threaded engagement between the guide bolt and the threaded hole of the contact seat 21 maintains its current tension, ensuring stability during operation.

[0054] In a preferred embodiment, the insulating assembly 3 includes a central sleeve 31 and a plurality of radial legs 32. The central sleeve 31 is sleeved on the right-angle conductor 2, and the plurality of radial legs 32 are evenly arranged along the outer periphery of the central sleeve 31. The outer end of each radial leg 32 abuts against the inner wall of the receiving cavity 1a of the outer casing 1.

[0055] Specifically, the insulating assembly 3 includes a central sleeve 31 and multiple radial legs 32. The central sleeve 31 is fitted onto the right-angle conductor 2 and is used for fixed connection with the right-angle conductor 2. The multiple radial legs 32 are evenly arranged along the outer periphery of the central sleeve 31. For example, the three legs of a three-post insulator are distributed at 120° intervals along the circumference. The outer end of each radial leg 32 abuts against the inner wall of the receiving cavity 1a of the outer shell 1, and is used to support the right-angle conductor 2 at the center of the receiving cavity 1a of the outer shell 1. The central sleeve 31 is fitted onto the right-angle conductor 2 and is fixedly connected to the right-angle conductor 2. The multiple radial legs 32 extend radially outward from the outer periphery of the central sleeve 31. The radial legs 32 are evenly distributed along the circumference of the central sleeve 31. The outer end of each radial leg 32 abuts against the inner wall of the receiving cavity 1a of the outer shell 1. The right-angle conductor 2 is suspended and supported at the center of the receiving cavity 1a of the outer shell 1 by the supporting action of the radial legs 32.

[0056] With this configuration, the central sleeve 31 has a cylindrical structure, and its inner hole is adapted to the outer diameter of the right-angle conductor 2, so that it can be tightly fitted onto the right-angle conductor 2. The sleeve-type connection helps to increase the contact area, while ensuring uniform stress distribution and preventing relative movement between the insulating component 3 and the right-angle conductor 2. For example, an interference fit can be used to tightly clamp the central sleeve 31 onto the right-angle conductor 2, or the central sleeve 31 can be bonded and fixed to the right-angle conductor 2 with an adhesive, or the central sleeve 31 can be integrated with the right-angle conductor 2 by insert injection molding. Multiple radial legs 32 are evenly distributed around the circumference of the central sleeve 31. Each radial leg 32 has the same length and its outer ends are located on the same circumference. When the outer ends of each radial leg 32 abut against the inner wall of the housing 1 receiving cavity 1a, the central axis of the central sleeve 31 coincides with the central axis of the housing 1 receiving cavity 1a. This achieves the initial coaxial arrangement between the right-angle conductor 2 and the housing 1, keeping the right-angle conductor 2 stable in the receiving cavity 1a and preventing it from shifting downward due to gravity. This provides a basis for the precise alignment of the limiting guide assembly 4. Taking a three-post insulator as an example, the three posts are evenly distributed around the circumference at 120-degree intervals, forming a stable triangular support structure that can withstand the radial load of the right-angle conductor 2 in any direction.

[0057] In a preferred embodiment, the inner side of the housing 1 is provided with a plurality of slide rails 13, and the side of the plurality of radial legs 32 near the housing 1 is provided with sliders 321, which slide in cooperation with the slide rails 13.

[0058] Specifically, the inner side of the outer casing 1 is provided with multiple slide rails 13 to provide sliding guidance for the radial support legs 32 of the insulating component 3. Each radial support leg 32 is provided with a slider 321 on the side near the outer casing 1. The slider 321 slides with the slide rail 13 to guide the insulating component 3 and the right-angle conductor 2 to move along the slide rail 13 into the interior of the outer casing 1 during assembly. The slide rails 13 are provided on the inner wall of the outer casing 1. The slide rails 13 are arranged along the extension direction of the outer casing 1, and the number of slide rails 13 corresponds to the number of radial support legs 32. A slider 321 is provided at the end of the radial support leg 32 near the outer casing 1. The shape of the slider 321 is adapted to the cross-sectional shape of the slide rail 13. The slider 321 is embedded in the slide rail 13 and can slide along the extension direction of the slide rail 13. During the assembly process, when the right-angle conductor 2 with insulating component 3 is pushed into the receiving cavity 1a from one end port of the housing 1, the slider 321 slides along the slide rail 13 to guide the insulating component 3 and the right-angle conductor 2 into the housing 1 along a predetermined path. The cooperation between the slide rail 13 and the slider 321 limits the radial position of the insulating component 3 during the entry process, preventing the insulating component 3 from deflecting or getting stuck during the pushing process.

[0059] With this design, the outer casing 1 of the GIL right-angle turning device is a right-angle bent tube structure with limited internal space. When the right-angle conductor 2 is installed into the casing 1 along with the insulating component 3, it needs to enter along the curved path. By setting a slide rail 13 on the inner side of the casing 1 and setting a slider 321 on the radial support leg 32, the insulating component 3 can slide forward along the slide rail 13 when it is installed. The constraint effect of the slide rail 13 on the slider 321 limits the travel path of the insulating component 3. The operator only needs to push it along the axial direction without additional adjustment of the direction, which reduces the difficulty of installation. The slider 321 is embedded in the slide rail 13 with a small clearance. The slide rail 13 constrains the radial displacement of the slider 321. During the installation of the insulating component 3, the slider 321 slides along the slide rail 13. The radial positions of the insulating component 3 and the right-angle conductor 2 are precisely defined by the slide rail 13, ensuring that after the insulating component 3 is pushed into place, the right-angle conductor 2 is basically coaxial with the outer shell 1. This provides a good initial condition for the precise alignment of the subsequent limiting guide component 4 and reduces the amount of deviation required for adjustment of the limiting guide component 4. The sliding fit between the slide rail 13 and the slider 321 not only facilitates the push-in operation during assembly but also facilitates the pull-out operation when maintenance or replacement is needed. When the GIL right-angle turning device needs maintenance, the limiting guide component 4 can be disassembled first, and then the right-angle conductor 2 and the insulating component 3 can be pulled out of the outer shell 1 along the slide rail 13, making the operation convenient and quick.

[0060] It should be noted that those skilled in the art can flexibly set the specific installation method of the slide rail 13 inside the housing 1 according to the actual application, as long as it can achieve stable guidance and limiting of the slider 321.

[0061] In the assembly process of a GIL right-angle turning device, the right-angle conductor 2 is first connected and fixed to the insulating component 3, and then they are installed together inside the housing 1. At this time, the housing 1 can be a multi-piece splicing, or it can be a one-piece structure when it meets the requirement of entering from the end of the housing 1 and completing the installation. Then, the positioning component 41 is placed on the flange end face of the housing 1, so that the first through hole is aligned with the flange mounting hole 11a. The positioning component 41 is fastened to the flange end face of the housing 1 by the first fastener 5, i.e., the bolt. The guide component 42 is then inserted into the second mounting hole 411b on the positioning component 41 by the second fastener 6. The connection is pre-tightened, wherein the second fastener is a bolt and the second mounting hole 411b is a threaded hole; after the connector 43 passes through the guide hole 42b on the guide member 42, it is screwed into the connection hole 21a at the bottom of the contact seat 21 of the right angle conductor 2, where the connection hole 21a is a threaded hole; the guide member 42 and the positioning member 41 are fully fastened; the connector 43 is rotated, and the right angle conductor 2 is pulled towards the positioning member 41 by the tension of the bolt, until the bottom of the contact seat 21 of the right angle conductor 2 abuts against the end of the limiting cylinder 412, thus completing the alignment of the right angle conductor 2.

[0062] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of the invention and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of the invention should be included within the protection scope of the invention. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A GIL right-angle turning device, characterized in that, The device includes: a housing (1), a right-angle conductor (2), an insulating component (3), and a limiting guide component (4); The outer shell (1) extends along a first direction (X) and a second direction (Y) and forms a receiving cavity (1a) with a right-angle turn for receiving and supporting the right-angle conductor (2) and the insulating component (3). The two ends of the outer shell (1) have a first flange end face (11) and a second flange end face (12), respectively. The right-angle conductor (2) is disposed in the receiving cavity (1a) through the insulating component (3), and the right-angle conductor (2) is used to realize the right-angle turn transmission of electrical energy; The limiting guide assembly (4) includes a positioning element (41), a guide element (42) and a connecting element (43). The positioning element (41) is connected to the first flange end face (11) and / or the second flange end face (12). The guide element (42) is connected to the positioning element (41). The connecting element (43) passes through the guide element (42) and is connected to the right-angle conductor (2). The guide (42) and connector (43) apply a pulling force to the right-angle conductor (2) in the direction of the positioning member (41) so that the right-angle conductor (2) abuts against the positioning member (41). The guide (42) and connector (43) restrict the right-angle conductor (2) from deflecting along the first direction (X) and / or the second direction (Y) so that the right-angle conductor (2) is coaxially aligned with the outer shell (1).

2. The GIL right-angle turning device according to claim 1, characterized in that, The positioning component (41) includes a flange connection part (411) and a limiting cylinder part (412). One end of the limiting cylinder part (412) is fixedly connected to the side of the flange connection part (411). The limiting cylinder part (412) is coaxially arranged with the flange connection part (411). The flange connection part (411) is connected to the first flange end face (11) or the second flange end face (12). The other end of the limiting cylinder part (412) extends into the receiving cavity (1a) and abuts against the contact seat (21) of the right-angle conductor (2).

3. The GIL right-angle turning device according to claim 2, characterized in that, The flange connection part (411) is a circular plate structure. The outer ring of the flange connection part (411) has a plurality of first mounting holes (411a) distributed circumferentially. The position of each first mounting hole (411a) corresponds one-to-one with the position of the flange mounting hole (11a) on the first flange end face (11) or the second flange end face (12). The flange connection part (411) is connected to the first flange end face (11) or the second flange end face (12) by a first fastener (5) passing through the first mounting hole (411a) and the flange mounting hole (11a).

4. The GIL right-angle turning device according to claim 2, characterized in that, The outer diameter of the limiting cylinder (412) is adapted to the inner diameter of the contact seat (21). The outer cylindrical surface of the limiting cylinder (412) and the inner cylindrical surface of the contact seat (21) form a clearance fit. The radial constraint of the limiting cylinder (412) on the contact seat (21) restricts the right-angle conductor (2) from deflecting in a plane perpendicular to the first direction (X) or the second direction (Y).

5. The GIL right-angle turning device according to claim 4, characterized in that, The axial length of the limiting cylinder (412) is adapted to the distance from the bottom surface of the contact seat (21) to the first flange end face (11) or the second flange end face (12). When the right-angle conductor (2) is aligned, the end face of the limiting cylinder (412) away from the flange connection (411) abuts against the bottom surface of the contact seat (21).

6. The GIL right-angle turning device according to claim 2, characterized in that, The inner ring area of ​​the flange connection part (411) has a plurality of second mounting holes (411b) distributed circumferentially, and the guide (42) has a plurality of third mounting holes (42a). The second mounting holes (411b) and the third mounting holes (42a) are arranged in a one-to-one correspondence. The guide (42) is connected to the flange connection part (411) by second fasteners (6) passing through the second mounting holes (411b) and the third mounting holes (42a).

7. The GIL right-angle turning device according to claim 2, characterized in that, The guide member (42) is provided with at least two guide holes (42b), and the bottom of the contact seat (21) is provided with a connecting hole (21a). The connecting hole (21a) and the guide hole (42b) are provided in a one-to-one correspondence. The connector (43) passes through the guide hole (42b), and the end of the connector (43) is connected to the connecting hole (21a).

8. The GIL right-angle turning device according to claim 7, characterized in that, The connector (43) consists of at least two guide bolts, each of which includes a screw section and a bolt head. The screw section passes through the guide (42) and is threaded into the connecting hole (21a). The diameter of the bolt head is larger than the diameter of the guide hole (42b) on the guide (42). The inner end face of the bolt head is used to abut against the outer end face of the guide (42) to provide a tension fulcrum.

9. The GIL right-angle turning device according to claim 1, characterized in that, The insulating assembly (3) includes a central sleeve (31) and a plurality of radial legs (32). The central sleeve (31) is sleeved on the right-angle conductor (2). The plurality of radial legs (32) are evenly arranged along the outer periphery of the central sleeve (31). The outer end of each radial leg (32) abuts against the inner wall of the receiving cavity (1a) of the outer shell (1).

10. The GIL right-angle turning device according to claim 9, characterized in that, The inner side of the outer shell (1) is provided with multiple slide rails (13), and each of the multiple radial legs (32) is provided with a slider (321) on the side near the outer shell (1). The slider (321) slides in cooperation with the slide rail (13).

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