GIL with transport cover assembly

Abstract

The application provides a GIL transportation cover assembly, which comprises a supporting seat, a cover, a fixing assembly, a first limiting assembly and a second limiting assembly; the cover is arranged on the supporting seat; the fixing assembly is arranged at the middle part of the supporting seat, and the fixing assembly comprises two fixing parts which abut against each other, and a fixing space for clamping and fixing a conductor in the GIL is formed between the two fixing parts; the first limiting assembly is used for overlapping the axis of the supporting seat with the axis of the fixing space; and the second limiting assembly has a limiting surface which abuts against the end of the conductor. The GIL transportation cover assembly provided by the application fixes the fixing assembly at the central position of the supporting seat through the first limiting assembly, and the two fixing parts fix the conductor from both sides of the conductor in the GIL, without leaving a gap, thereby improving the stability of the conductor transportation and ensuring the stability of the conductor during the transportation.

Description

Technical Field

[0001] This invention belongs to the field of electrical equipment technology, and specifically relates to a transport cover assembly for GIL (Gas Inertial Transportation System). Background Technology

[0002] Gas-insulated transmission line equipment (GIL) is a new type of transmission equipment with features such as large transmission capacity, compact layout, high reliability, and no fire risk.

[0003] Currently, the minimum standard transport unit for GIL is approximately 12 meters. Its internal conductors and outer casing are connected as a single unit at the factory, meaning the conductors cannot be transported separately. Due to the unique structure of GIL, at least 6 meters of the internal conductor is cantilevered. If this is not controlled during transport, the conductors will move relative to each other, generating impurities such as metal particles that affect the product's insulation performance. Simultaneously, this relative movement will also generate stress on the fixed end, affecting its mechanical properties.

[0004] Traditional transport covers consist of a cylindrical body and a flange welded together. The conductor is placed inside the cylindrical body, and a rubber gasket is bonded to the inside of the cylindrical body. For ease of installation, there is a certain gap between the conductor and the gasket; otherwise, the conductor cannot be installed inside the cylindrical body. This can cause relative movement between the conductor and the gasket during transportation, and foreign objects generated by the relative movement between the conductor and the gasket can enter the interior of the GIL, thereby affecting the insulation performance of the product. Summary of the Invention

[0005] This invention provides a transport cover assembly for GIL, which aims to solve the technical problem that in conventional transport devices in the prior art, there is a gap between the conductor and the gasket, which affects the stability of the conductor during transport and causes foreign objects to enter the interior of the GIL.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] A transport cover assembly for GIL (Gas Inductor Leading System) is provided, comprising a support base, a cover plate, a fixing component, a first limiting component, and a second limiting component. The support base has an annular structure and is used to connect to a GIL housing. The cover plate is mounted on the support base. The fixing component is located in the middle of the support base and includes two mutually abutting fixing parts symmetrically arranged about the axis of the support base, forming a fixing space for clamping and fixing the GIL conductor. The first limiting component is located between the support base and the fixing parts, and is used to make the axis of the support base overlap with the axis of the fixing space. The second limiting component is connected to the fixing parts and is located on the side of the fixing parts away from the support base. The second limiting component has a limiting plate, the surface of which is perpendicular to the axis of the support base. The side of the limiting plate facing the support base forms a limiting surface that abuts against the end of the conductor, and the limiting surface can limit the axial displacement of the conductor.

[0008] In one possible implementation, the fixing part includes an arc-shaped ring and a buffer pad disposed on the inner wall of the arc-shaped ring. One arc-shaped ring has fixing holes at both ends, and the other arc-shaped ring has connecting holes at both ends corresponding to the fixing holes. The two arc-shaped rings are fixedly connected by a connector that passes through the fixing holes and the connecting holes.

[0009] In one possible implementation, the connector includes a bolt with a nut, a nut, and an elastic element. The bolt passes through the corresponding fixing hole and connecting hole in sequence and is connected to the nut. The elastic element is sleeved on the outer periphery of the bolt, and both ends of the elastic element abut against the arc-shaped ring and the nut, respectively. The elastic element is configured with a preload force to push the nut away from the arc-shaped ring.

[0010] In one possible implementation, the inner ring of the support base is formed with an annular stepped groove, and multiple first limiting components are provided, each of which includes:

[0011] A sliding seat is slidably disposed in the stepped groove along the circumference of the support seat;

[0012] A screw, the screw extending radially along the support base, the end of the screw near the fixing part being connected to the fixing part; and

[0013] A sleeve is disposed between the screw and the sliding seat. One end of the sleeve is rotatably connected to the sliding seat, and the axis of rotation coincides with the axis of the screw. The other end of the sleeve is screwed to the screw.

[0014] In this configuration, multiple sliding seats slide synchronously, and the included angle between two adjacent sliding seats is the same.

[0015] In one possible implementation, the sliding seat has a plugging protrusion on the side of the stepped groove, and the groove wall of the stepped groove has a plugging groove, which is plugged into the plugging protrusion to limit the displacement of the sliding seat in the axial direction of the support seat; the sliding seat has a pulley on the side away from the fixed part, and the bottom of the stepped groove has an annular guide rail, with the pulley rolling in cooperation with the annular guide rail.

[0016] In one possible implementation, the second limiting component further includes:

[0017] Two connecting seats are respectively disposed on the sides of the two fixing parts, and the two connecting seats are symmetrically arranged about the axis of the fixing space; and

[0018] Two connecting plates are respectively connected to the corresponding connecting seats. The plate surface of the connecting plate is parallel to the axial direction of the support seat, and the plate surfaces of the two connecting plates are parallel to each other. The plate surface of the connecting plate is provided with multiple mounting holes, and the multiple mounting holes in the same connecting plate are arranged at intervals along the axis of the fixed space.

[0019] The outer periphery of the limiting plate is provided with a fixing protrusion corresponding to the mounting hole. One of the fixing protrusions is inserted into and cooperates with one of the mounting holes. The side of the limiting plate facing the fixing component forms the limiting surface.

[0020] In one possible implementation, the support base has a plurality of through support holes along its circumference for connection with the GIL housing.

[0021] In one possible implementation, a support ring is coaxially provided on the surface of the support base, and the support holes are distributed on the outer side of the support ring; the support base is also provided with a plurality of reinforcing plates, which are disposed between two adjacent support holes and are respectively connected to the support base and the support ring.

[0022] In one possible implementation, the cover plate includes an integrally formed cover body and a sealing ring. The sealing ring has a sealing hole corresponding to the support hole. A sealing groove is formed at the top of the sealing hole. The sealing groove communicates with the sealing hole. A gasket is provided in the sealing groove.

[0023] In one possible implementation, the cover plate further includes an airbag that covers the outer surface of the cover.

[0024] The transport cover assembly for GIL provided by this invention, compared with the prior art, features a support base as the fixing body. A first limiting component fixes the fixing component at the center of the support base. The fixing component is in direct contact with the conductor of the GIL. Two fixing parts fix the conductor from both sides of the conductor without leaving gaps, improving the stability of conductor transportation and reducing the installation difficulty of the conductor and fixing components. The first limiting component fixes the two fixing parts radially on the support base, limiting the radial displacement of the two fixing parts on the support base. The second limiting component provides a limiting surface, the axis of which overlaps with the axis of the fixing space. The limiting surface provides a limit at the axial end of the conductor, limiting the axial displacement of the conductor and ensuring the stability of the conductor during transportation. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of a transport cover assembly for GIL provided in an embodiment of the present invention;

[0027] Figure 2 for Figure 1 Top view;

[0028] Figure 3 This is a bottom view of the transport cover assembly for GIL used in an embodiment of the present invention;

[0029] Figure 4 for Figure 1 Assembly diagram of the fixing components and support base used in the process;

[0030] Figure 5 for Figure 1 A schematic diagram of the structure of the first limiting component used in the process;

[0031] Figure 6 for Figure 1 The cross-sectional view of the support used in the design;

[0032] Figure 7 for Figure 1 Assembly diagram of the second limiting component and fixing component used in the process;

[0033] Figure 8 for Figure 1 The cross-sectional view of the cover plate used in the process.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Support base; 11. Stepped groove; 12. Guide rail; 13. Insertion groove; 14. Support hole; 15. Support ring; 16. Reinforcing plate;

[0036] 2. Cover plate; 21. Cover body; 22. Sealing ring; 221. Sealing hole; 23. Gasket; 24. Airbag;

[0037] 3. Fixing component; 30. Fixing space; 31. Arc ring; 32. Buffer pad; 33. Connector; 331. Bolt; 332. Nut; 333. Elastic element;

[0038] 4. First limiting component; 41. Sliding seat; 411. Insertion protrusion; 412. Pulley; 42. Screw; 43. Sleeve;

[0039] 5. Second limiting component; 51. Connecting seat; 52. Connecting plate; 521. Mounting hole; 53. Limiting plate; 54. Pressure relief pad. Detailed Implementation

[0040] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0041] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. The following description of at least one exemplary embodiment is actually illustrative only and is in no way intended to limit this application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0042] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0043] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0044] It should be noted that the terms "length," "width," "height," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the invention. The directional terms "inner" and "outer" refer to the inside or outside relative to the outline of each component itself.

[0045] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "linking," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0046] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways, and the spatial relative descriptions used herein will be interpreted accordingly.

[0047] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Additionally, "multiple" and "several" mean two or more, unless otherwise explicitly specified.

[0048] Please refer to the following: Figures 1 to 8 The transport cover assembly for GIL provided by the present invention will now be described. The GIL transport cover 2 assembly includes a support base 1, a cover 2, a fixing component 3, a first limiting component 4, and a second limiting component 5. The support base 1 has an annular structure and is used to connect to the GIL housing. The cover 2 is placed on the support base 1. The fixing component 3 is located in the middle of the support base 1 and includes two mutually abutting fixing parts. The two fixing parts are symmetrically arranged about the axis of the support base 1, and the two fixing parts enclose a fixing space 30 for clamping and fixing the conductor in the GIL. The first limiting component 4 is located between the support base 1 and the fixing parts and is used to make the axis of the support base 1 overlap with the axis of the fixing space 30. The second limiting component 5 is connected to the fixing parts and is located on the side of the fixing parts away from the support base 1. The second limiting component 5 has a limiting plate 53. The plate surface of the limiting plate 53 is perpendicular to the axis of the support base 1. The side of the limiting plate 53 facing the support base 1 forms a limiting surface that abuts against the end of the conductor and restricts the axial displacement of the conductor.

[0049] It should be noted that both fixing parts can be arc-shaped components. When the two fixing parts are connected, they abut against the conductor from both sides to ensure the stability of the conductor during transportation.

[0050] It should be noted that the limiting surface abuts against the axial end of the conductor to prevent the conductor from moving along its own axis.

[0051] It should be noted that the conductor is set horizontally during transportation, so the axis of the support 1 is parallel to the horizontal direction, and the second limiting component 5 and the first limiting component 4 are spaced apart in the horizontal direction.

[0052] Compared with the prior art, the transport cover assembly for GIL provided in this embodiment has a support base 1 as the fixing body. The fixing component 3 is fixed at the center of the support base 1 by the first limiting component 4. The fixing component 3 is in direct contact with the conductor of GIL. The two fixing parts fix the conductor from both sides of the conductor of GIL without leaving gaps, which improves the stability of conductor transportation and reduces the installation difficulty of conductor and fixing component 3. The first limiting component 4 fixes the two fixing parts in the radial direction of the support base 1, restricting the radial displacement of the two fixing parts in the support base 1. The second limiting component 5 provides a limiting surface. The axis of the limiting surface overlaps with the axis of the fixing space 30. The limiting surface provides a limit at the axial end of the conductor, restricting the axial displacement of the conductor and ensuring the stability of the conductor during transportation.

[0053] In some embodiments, see Figure 4 and Figure 7 The fixing part includes an arc-shaped ring 31 and a buffer pad 32 disposed on the inner wall of the arc-shaped ring 31. One arc-shaped ring 31 has fixing holes at both ends, and the other arc-shaped ring 31 has connecting holes at both ends corresponding to the fixing holes. The two arc-shaped rings 31 are fixedly connected by a connector 33 that passes through the fixing holes and the connecting holes.

[0054] The fixing part provided in this embodiment does not have a complicated mechanical structure. The two arc-shaped rings 31 fit together and are fixed by the connector 33, which is easy to operate. The buffer pad 32 is set on the inner wall of the arc-shaped ring 31. When fixing the conductor, the buffer pad 32 directly abuts against the conductor, reducing the pressure of the arc-shaped ring 31 on the conductor.

[0055] As another embodiment of the connection between the two arc-shaped rings 31, one end of one arc-shaped ring 31 is hinged to one end of the other arc-shaped ring 31, with the hinge axis parallel to the vertical direction. The other ends of the two arc-shaped rings 31 are detachably connected by bolts, making the connection easy.

[0056] In some embodiments, see Figure 7 The connector 33 includes a bolt 331 with a nut, a nut 332 and an elastic element 333. The bolt 331 passes through the corresponding fixing hole and connecting hole in sequence and is connected to the nut 332. The elastic element 333 is sleeved on the outer periphery of the bolt 331, and the two ends of the elastic element 333 abut against the arc ring 31 and the nut respectively. The elastic element 333 is configured with a preload force to push the nut away from the arc ring 31.

[0057] This embodiment provides one embodiment of the connector 33. The bolt 331 passes through the fixing hole and the connecting hole in sequence, and is screwed together with the nut 332 to fasten the two arc-shaped rings 31 together. The connection is easy and the arc-shaped rings 31 are easy to disassemble and assemble. The elastic element 333 is sleeved on the bolt 331. When the bolt 331 and the nut 332 are tightened, the elastic element 333 is squeezed and pushes the two arc-shaped rings 31 to abut against each other, thereby improving the connection strength of the two arc-shaped rings 31.

[0058] Optionally, the elastic element 333 is a U-shaped elastic sheet. When the elastic element 34 is compressed, the two elastic surfaces of the elastic sheet approach each other, causing the elastic element 333 to generate a reverse restoring preload force. Meanwhile, the relative positions of the nut 332 and the bolt remain unchanged, and the elastic element 333 can only push the arc-shaped ring 31 towards the other arc-shaped ring 31. Of course, other elastic elements, such as springs, can also be used for the elastic element 333, which will not be listed here.

[0059] In some embodiments, see Figure 4 and Figure 5 The inner ring of the support base 1 forms an annular stepped groove 11. Multiple first limiting components 4 are provided, each including a sliding seat 41, a screw 42, and a sleeve 43. The sliding seat 41 slides circumferentially in the stepped groove 11; the screw 42 extends radially along the support base 1, with one end of the screw 42 near the corresponding fixing part connected to the fixing part; the sleeve 43 is located between the screw 42 and the sliding seat 41, with one end of the sleeve 43 rotatably connected to the sliding seat 41 and its rotation axis coinciding with the axis of the screw 42, and the other end of the sleeve 43 screwed to the screw 42; wherein, multiple sliding seats 41 slide synchronously, and the included angle between two adjacent sliding seats 41 is the same.

[0060] This embodiment provides one implementation of the first limiting component 4. Multiple first limiting components 4 are evenly distributed within the support base 1, applying a pushing force to the fixing component 3 from all sides. This ensures that the central axis of the fixing space 30 always overlaps with the axis of the support base 1, guaranteeing transport stability. The included angles of adjacent sliding seats 41 are the same, ensuring that the force received by the fixing component 3 is uniform, guaranteeing its relative fixation to the support base 1. The stepped groove 11 provides a movement trajectory. The screw 42 and sleeve 43 can swing around the axis of the fixing space 30 as the sliding seat 41 moves, increasing the freedom of installation and reducing installation difficulty during use. The sleeve 43 and screw 42 are screwed together. By adjusting the screwing distance between the sleeve 43 and screw 42, the overall length of the first limiting component 4 can be adjusted. When it is necessary to replace the fixing component with a different size, only the screwing distance between the sleeve 43 and screw 42 needs to be changed, thus allowing the support base 1 to adapt to the installation of conductors of different sizes, improving its applicability.

[0061] In specific implementation, four sets of first limiting components 4 can be selected, with the included angle between two adjacent sliding seats 41 being 90 degrees, or three sets of first limiting components 4 can be selected to ensure that the force on the fixed component 3 is uniform.

[0062] In some embodiments, see Figure 6 The sliding seat 41 has a plugging protrusion 411 on its side that fits against the stepped groove 11. The groove wall of the stepped groove 11 has a plugging groove 13, which is plugged into the plugging protrusion 411 to restrict the positioning displacement of the sliding seat 41 in the axial direction of the support seat 1. A pulley is provided on the side of the sliding seat 41 away from the fixed part. An annular guide rail 12 is provided at the bottom of the stepped groove 11, and the pulley is in rolling engagement with the annular guide rail 12. The plugging protrusion 411 and the plugging groove 13 are slidably plugged into each other to restrict the movement of the sliding seat 41 in the vertical direction, ensuring that the sliding seat 41 is always on the stepped groove 11. The guide rail 12 is in rolling engagement with the pulley 412 to guide the sliding of the pulley 412.

[0063] In practice, the insertion protrusion 411 is an arc-shaped protrusion, and its curvature is the same as that of the guide rail 12.

[0064] In some embodiments, see Figure 4 and Figure 7 The second limiting component 5 also includes two connecting seats 51 and two connecting plates 52. The two connecting seats 51 are respectively located on the sides of the two fixing parts, and the two connecting seats 51 are symmetrically arranged about the axis of the fixing space 30. The two connecting plates 52 are respectively connected to the corresponding connecting seats 51. The plate surface of the connecting plate 52 is parallel to the axis of the support 1, and the plate surfaces of the two connecting plates 52 are parallel to each other. The plate surface of the connecting plate 52 is provided with multiple mounting holes 521. The multiple mounting holes 521 in the same connecting plate 52 are arranged at intervals along the axis of the fixing space 30. The outer periphery of the limiting plate 53 is provided with fixing protrusions corresponding to the mounting holes 521. One of the fixing protrusions is inserted and engaged with the multiple mounting holes 521. The side of the limiting plate 53 facing the fixing component 3 forms a limiting surface.

[0065] It should be noted that a pressure-reducing pad 54 is provided on the inner side of the limiting plate 53. The pressure-reducing pad 54 directly abuts against the end of the conductor, thereby improving the protection effect on the conductor.

[0066] In practice, a connecting block is provided on the outer periphery of the limiting plate 53, and a fixing protrusion is provided on the connecting block. The fixing protrusion and the mounting hole 521 are inserted and matched.

[0067] Specifically, after the fixed protrusion and mounting hole 521 are inserted, the connecting plate 52 and the limiting plate 53 can be connected into a whole by tightening the screws to improve the strength of use.

[0068] Specifically, the multiple mounting holes 521 on the same connecting plate 52 are arranged in two rows, and there are two fixing protrusions on the same side of the connecting block to improve the stability of the connection.

[0069] The second limiting component 5 provided in this embodiment has a limiting plate 53 at the end of the conductor. The limiting plate 53 is relatively fixed to the fixing component 3 through the connecting plate 52, which can limit the axial displacement of the conductor and improve the fixing effect of the conductor. The two connecting plates 52 are respectively provided on the sides of the two fixing parts to improve the support stability and ensure that the limiting plate 53 is stably supported.

[0070] In some embodiments, see Figure 7 An opening can be made in the middle of the limiting plate 53 to reduce the weight of the limiting plate 53 and lower the cost.

[0071] As another embodiment of the second limiting component 5, it includes three movable rods slidably disposed inside the cover plate 2, arranged radially around the axis of the conductor. The ends of the three movable rods are respectively connected to the limiting plate 53, and the included angle between two adjacent movable rods is 120°. The outer periphery of the limiting plate 53 is provided with three screw holes that penetrate along its own radial direction. Each screw hole is threaded with a push rod. One end of the push rod disposed inside the limiting plate 53 is hinged to a pad. The pad is an L-shaped component, and the hinge axis is parallel to the radial direction of the conductor. By the three push rods respectively engaging with the corresponding screw holes, the positions of the three pads are changed. The three pads respectively abut against the end of the conductor and the outer periphery of the end to clamp and fix the conductor and limit the position of the end of the conductor.

[0072] In this embodiment, reinforcing rods are connected to the three moving rods respectively, so that the three moving rods move synchronously. A lead screw is provided on the inner side of the cover plate 2. The lead screw is set along the long axis of the conductor. The three lead screws correspond to the three moving rods. The moving rods move closer to or away from the support base 1 through the lead screw principle and cooperation with the lead screw. This makes it convenient to move the position of the pad according to the length of the conductor. In this embodiment, the pad is an L-shaped plate. When the pad abuts against the end of the conductor, the pad abuts against the end face and the outer periphery of the end of the conductor respectively, which improves the stability of the limit.

[0073] In some embodiments, referring to 4, the support base 1 has a plurality of through support holes 14 along its circumference, which are used to connect with the GIL shell. The multiple support holes 14 improve the connection strength with the GIL shell and enhance transportation stability.

[0074] In some embodiments, see Figure 2The support base 1 has a support ring 15 coaxially mounted on its surface, with support holes 14 distributed on the outer side of the support ring 15. The support base 1 also has multiple reinforcing plates 16, which are positioned between adjacent support holes 14 and connected to both the support base 1 and the support ring 15. The top surface of the support ring 15 is higher than the upper surface of the support base 1, protecting the inner side of the support base 1 and forming a space for fixing the conductor in conjunction with the cover plate 2. The multiple reinforcing plates 16 enhance the support strength of the support base 1 and extend its service life.

[0075] In some embodiments, see Figure 2 and Figure 8 The cover plate 2 includes an integrally formed cover body 21 and a sealing ring 22. The sealing ring 22 has a sealing hole 221 corresponding to the support hole 14. A sealing groove is formed at the top of the sealing hole 221, communicating with the sealing hole 221. A gasket 23 is provided inside the sealing groove. The sealing ring 22 has a large contact area with the support base 1, making the connection between the sealing ring 22 and the support base easier and improving installation convenience. The cover body 21 can protect the conductor. The gasket 23 improves the sealing performance of the connection between the sealing ring 22 and the support base 1.

[0076] In practice, the support base 1 is connected to the GIL housing by bolts, with the bolts passing through the sealing hole 221 and the support hole 14 in sequence before being connected to the housing.

[0077] Specifically, the cover 21 has a basin-shaped structure.

[0078] As one embodiment of improving the sealing performance of the connection between the sealing ring 22 and the support seat 1, a sealing ring is simultaneously fitted on the side wall of both the sealing ring 22 and the support seat 1. The sealing ring is used to seal the gap between the sealing ring 22 and the upper surface of the support seat 1.

[0079] In some embodiments, see Figure 8 The cover plate 2 also includes an airbag 24, which covers the outer surface of the cover 21. The airbag 24 can provide a second layer of protection outside the cover 21, preventing the cover 21 from being directly impacted, greatly improving the pressure resistance of the cover plate 2, and thus improving the protection effect on the conductor.

[0080] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A transport cover assembly for GIL, characterized in that, It includes a support base (1), a cover plate (2), a fixing component (3), a first limiting component (4), and a second limiting component (5); the support base (1) is a ring structure and is used to connect with the GIL housing; the cover plate (2) covers the support base (1); the fixing component (3) is located in the middle of the support base (1), and the fixing component (3) includes two mutually abutting fixing parts, which are symmetrically arranged about the axis of the support base (1), and the two fixing parts enclose a fixing space (30) for clamping and fixing the GIL conductor; the second limiting component (4) is a ring structure and is used to connect with the GIL housing; the cover plate (2) covers the support base (1); the fixing component (3) is located in the middle of the support base (1), and includes two mutually abutting fixing parts, which are symmetrically arranged about the axis of the support base (1), and the two fixing parts enclose a fixing space (30) for clamping and fixing the GIL conductor; the second limiting component (5) is a ring structure and is used to connect with the GIL housing; the cover plate (2) covers the support base (1); the fixing component (3 ... second limiting component (4) covers the support base (1); the fixing component (5) is a ring structure and is used to connect with the GIL housing; the second limiting component A limiting component (4) is disposed between the support base (1) and the fixing part to make the axis of the support base (1) overlap with the axis of the fixing space (30); a second limiting component (5) is connected to the fixing part and is disposed on the side of the fixing part away from the support base (1). The second limiting component (5) has a limiting plate (53). The plate surface of the limiting plate (53) is perpendicular to the axis of the support base (1). The side of the limiting plate (53) facing the support base (1) forms a limiting surface that abuts against the end of the conductor. The limiting surface can limit the axial displacement of the conductor. The inner ring of the support base (1) is formed with an annular stepped groove (11), and multiple first limiting components (4) are provided, each of which includes: The sliding seat (41) is slidably disposed in the stepped groove (11) along the circumference of the support seat (1); Screw (42), the screw (42) extends radially along the support base (1), and one end of the screw (42) near the fixing part is connected to the fixing part; and A sleeve (43) is provided between the screw (42) and the sliding seat (41). One end of the sleeve (43) is rotatably connected to the sliding seat (41), and the rotation axis coincides with the axis of the screw (42). The other end of the sleeve (43) is screwed to the screw (42). Among them, multiple sliding blocks (41) slide synchronously, and the included angle between two adjacent sliding blocks (41) is the same.

2. The transport cover assembly for GIL as claimed in claim 1, characterized in that, The fixing part includes an arc-shaped ring (31) and a buffer pad (32) provided on the inner wall of the arc-shaped ring (31). One arc-shaped ring (31) has fixing holes at both ends, and the other arc-shaped ring (31) has connecting holes at both ends corresponding to the fixing holes. The two arc-shaped rings (31) are fixedly connected by a connector (33) that passes through the fixing holes and the connecting holes.

3. The transport cover assembly for GIL as claimed in claim 2, characterized in that, The connector (33) includes a bolt (331) with a nut, a nut (332) and an elastic element (333). The bolt (331) passes through the corresponding fixing hole and connecting hole in sequence and is screwed to the nut (332). The elastic element (333) is sleeved on the outer periphery of the bolt (331), and the two ends of the elastic element (333) abut against the arc ring (31) and the nut respectively. The elastic element (333) is configured with a preload force to push the nut away from the arc ring (31).

4. The transport cover assembly for GIL as claimed in claim 1, characterized in that... The sliding seat (41) has a plug-in protrusion (411) on the side of the stepped groove (11) and a plug-in groove (13) on the groove wall of the stepped groove (11). The plug-in groove (13) and the plug-in protrusion (411) are plugged in to restrict the displacement of the sliding seat (41) in the axial direction of the support seat (1). The sliding seat (41) has a pulley (412) on the side away from the fixed part and an annular guide rail (12) is provided at the bottom of the stepped groove (11). The pulley (412) and the annular guide rail (12) are in rolling cooperation.

5. The transport cover assembly for GIL as claimed in claim 1, characterized in that, The second limiting component (5) also includes: Two connecting seats (51) are respectively provided on the sides of the two fixing parts, and the two connecting seats (51) are symmetrically arranged about the axis of the fixing space (30); and Two connecting plates (52) are connected to corresponding connecting seats (51) respectively. The plate surface of the connecting plate (52) is parallel to the axial direction of the support seat (1), and the plate surfaces of the two connecting plates (52) are parallel to each other. Multiple mounting holes (521) are provided on the plate surface of the connecting plate (52). Multiple mounting holes (521) in the same connecting plate (52) are arranged at intervals along the axis of the fixed space (30). The outer periphery of the limiting plate (53) is provided with a fixing protrusion corresponding to the mounting hole (521). One of the fixing protrusions is inserted and engaged with multiple mounting holes (521). The side of the limiting plate (53) facing the fixing component (3) forms a limiting surface.

6. The transport cover assembly for GIL as claimed in claim 1, characterized in that, The support base (1) has multiple through support holes (14) along its circumference, which are used to connect with the GIL shell.

7. The transport cover assembly for GIL as claimed in claim 6, characterized in that, The support base (1) has a support ring (15) coaxially arranged on its surface, and support holes (14) are distributed on the outside of the support ring (15). The support base (1) is also provided with multiple reinforcing plates (16), which are located between two adjacent support holes (14) and are connected to the support base (1) and the support ring (15) respectively.

8. The transport cover assembly for GIL as claimed in claim 6, characterized in that, The cover plate (2) includes an integrally formed cover body (21) and a sealing ring (22). The sealing ring (22) has a sealing hole (221) corresponding to the support hole (14). A sealing groove is provided at the top of the sealing hole (221), and the sealing groove communicates with the sealing hole (221). A gasket (23) is provided in the sealing groove.

9. The transport cover assembly for GIL as claimed in claim 8, characterized in that, The cover (2) also includes an airbag (24) that covers the outer surface of the cover (21).

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