220KV-level GIS universal test sleeve

Abstract

The utility model provides a 220KV-level GIS universal test bushing, which comprises a test bushing body, the bottom of the test bushing body is fixedly connected with a flange installation disc, the top of the flange installation disc is provided with an installation component, and the installation component comprises an installation channel arranged at the top of the flange installation disc. A spring is fixedly connected to the inner wall of the mounting channel, an adjusting column is fixedly connected to one end of the spring, and a mounting bolt rod is fixedly connected to the bottom of the adjusting column. The motor works to drive the first winding roller and the second winding roller to tighten the two ends of the steel rope, the length of the middle portion of the steel rope is shortened, then the diameter of a circle formed by the steel rope surrounding the multiple bolt heads is decreased, the multiple bolt heads can get close to the center, and then the positions of the multiple installation bolt rods are adjusted; scale data of the bolt head can be observed through the scale marks, and then the position of a bolt rod installed on the flange installation disc can be adjusted according to the size of a flange on the GIS.

Description

Technical Field

[0001] This utility model is a 220KV-level GIS general-purpose test sleeve, belonging to the field of test sleeves. Background Technology

[0002] A 220kV GIS is a gas-insulated switchgear. The 220kV GIS general-purpose test bushing is a key component used for high-voltage testing of GIS equipment. It is mainly used to connect external test equipment to the internal conductors of the GIS for insulation testing, withstand voltage testing, and other electrical performance tests. The 220kV GIS general-purpose test bushing consists of a bushing body with an embedded conductive rod, a flange interface, a shielding layer, connection terminals, and a grounding terminal. During the test, this bushing can ensure the stable transmission of current or voltage while providing necessary insulation protection to prevent equipment failure or damage.

[0003] However, in the existing technology, the experimental bushing is installed and connected to the switchgear via a flange. Since flange connections can only be installed tightly using interfaces of the same specifications, this reduces the applicability of the device. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a KV-level GIS universal test sleeve to solve the problems mentioned in the background technology. This utility model is applicable to most flanges and improves the applicability of the device.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a KV-grade GIS universal test sleeve, comprising a test sleeve body, a flange mounting plate fixedly connected to the bottom of the test sleeve body, and a mounting component provided on the top of the flange mounting plate.

[0006] The mounting components include a mounting channel formed on the top of the flange mounting plate, a spring fixedly connected to the inner wall of the mounting channel, an adjusting column fixedly connected to one end of the spring, a mounting bolt rod fixedly connected to the bottom of the adjusting column, and a bolt head fixedly connected to the top of the adjusting column. The outer wall of the flange mounting plate is provided with scale lines, and a groove is machined inside the flange mounting plate. A motor is fixedly connected inside the groove, and the output of the motor is fixedly connected to a rotating rod through a coupling. An adjusting component is provided on the top of the rotating rod.

[0007] Furthermore, the outer wall of the adjusting column is slidably connected to the inner wall of the installation channel, and the outer wall of the adjusting column is provided with a through groove.

[0008] Furthermore, a limiting rod is fixedly connected to the inner wall of the installation channel. One end of the limiting rod passes through the through groove and extends to the outside of the adjusting column. The limiting rod is slidably connected to the through groove.

[0009] Furthermore, the adjusting component includes a first take-up roller fixedly connected to the top of the rotating rod, the top of the rotating rod extending to the outside of the flange mounting plate, and the rotating rod being rotatably connected to the flange mounting plate.

[0010] Furthermore, a steel rope is fixedly connected to the outer wall of the first take-up roller, and a second take-up roller is fixedly connected to the top of the first take-up roller. The other end of the steel rope is fixedly connected to the outer wall of the second take-up roller.

[0011] Furthermore, the outer wall of the bolt head is provided with a wear-resistant groove, and the outer wall of the steel rope is slidably connected to the inner wall of the wear-resistant groove.

[0012] The beneficial effects of this utility model are:

[0013] 1. The motor drives the first and second take-up rollers to tighten both ends of the steel rope, shortening the middle section of the rope. This reduces the diameter of the circle formed by the rope around the multiple bolt heads, causing them to move closer to the center. This allows for adjustment of the position of the mounting bolts. The location of the bolt heads can be observed on a scale, allowing adjustment of the mounting bolt position on the flange mounting plate according to the size of the flange on the GIS equipment. The mounting bolts can then be moved to align with the through holes on the flange, allowing them to pass through the holes. Nuts and washers are then used to tighten the bolt heads, installing the flange mounting plate onto the flange on the GIS equipment. A sealing gasket at the bottom of the flange mounting plate provides a seal, making the device suitable for most flange types and improving its applicability.

[0014] 2. After aligning the flange mounting plate with the flange on the GIS equipment, the bolt heads are passed through the mounting holes on the GIS equipment. Then, the bolt heads are tightened using nuts and fastening washers, allowing the flange mounting plate to be installed on the flange on the GIS equipment. The bottom of the flange mounting plate is equipped with a sealing gasket, which can play a sealing role. The diameter of the flange mounting plate is larger than that of a regular flange, and the adjusting column can move towards the inner wall of the installation channel to accommodate other different flange through holes on the market, thereby further meeting the usage requirements of the device and improving its practicality. Attached Figure Description

[0015] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0016] Figure 1 This is a schematic diagram of the structure of a 220KV GIS general-purpose test sleeve according to this utility model;

[0017] Figure 2 This is a schematic diagram of the flange mounting plate in this utility model;

[0018] Figure 3 for Figure 2 Enlarged view of the structure at point A in the middle;

[0019] Figure 4 This is a schematic diagram of the movable column in this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the motor in this utility model.

[0021] In the diagram: 1. Test sleeve body; 2. Flange mounting plate; 3. Installation channel; 4. Limiting rod; 5. Spring; 6. Adjusting column; 7. Through groove; 8. Mounting bolt rod; 9. Bolt head; 10. Wear-resistant groove; 11. Scale line; 12. Steel rope; 13. Motor; 14. Rotating rod; 15. First winding roller; 16. Second winding roller. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] Please see Figures 1-5 This utility model provides a technical solution: a 220KV GIS universal test sleeve, including a test sleeve body 1, with a flange mounting plate 2 fixedly connected to the bottom of the test sleeve body 1. The required installation location of the external GIS will be provided with a flange. When installing the test sleeve body 1, the flange mounting plate 2 is aligned with the flange on the GIS equipment to start the installation process. The diameter of the flange mounting plate 2 is larger than that of a normal flange, and the top of the flange mounting plate 2 is provided with an installation component.

[0024] The mounting components include a mounting channel 3 on the top of the flange mounting plate 2. A spring 5 is fixedly connected to the inner wall of the mounting channel 3. An adjusting column 6 is fixedly connected to one end of the spring 5. The spring 5 has a large preload, so the adjusting column 6 will not move automatically without external influence. A mounting bolt rod 8 is fixedly connected to the bottom of the adjusting column 6, and a bolt head 9 is fixedly connected to the top of the adjusting column 6. After the flange mounting plate 2 is aligned with the flange on the GIS equipment, the bolt head 9 passes through the mounting hole on the GIS equipment. Then, the bolt head 9 is tightened using a nut and a fastening washer, so that the flange mounting plate 2 is installed with the flange on the GIS equipment. A sealing gasket is provided at the bottom of the flange mounting plate 2, which can play a sealing role. The outer wall of the flange mounting plate 2 has scale lines 11. The inside of the flange mounting plate 2 is machined with a groove, and a motor 13 is fixedly connected inside the groove. The output of the motor 13 is fixedly connected to a rotating rod 14 through a coupling. An adjusting component is provided at the top of the rotating rod 14. There are multiple mounting components, which are evenly arranged on the top of the flange mounting plate 2 in a circular trajectory.

[0025] The outer wall of the adjusting column 6 is slidably connected to the inner wall of the mounting channel 3. The outer wall of the adjusting column 6 is provided with a through groove 7. The inner side wall of the mounting channel 3 is fixedly connected with a limit rod 4. When the adjusting column 6 is subjected to a force greater than the preload of the spring 5, it can move inside the mounting channel 3.

[0026] One end of the limiting rod 4 passes through the through groove 7 and extends to the outside of the adjusting column 6. The limiting rod 4 is slidably connected to the through groove 7. Through the limiting action of the limiting rod 4, the adjusting column 6 can only move inside the installation channel 3 and will not detach from the installation channel 3.

[0027] The adjusting component includes a first take-up roller 15 fixedly connected to the top of the rotating rod 14. The top of the rotating rod 14 extends to the outside of the flange mounting plate 2. The rotating rod 14 is rotatably connected to the flange mounting plate 2. When the motor 13 is started, the output end of the motor 13 drives the rotating rod 14 to rotate through the coupling. The rotating rod 14 will drive the first take-up roller 15.

[0028] A steel rope 12 is fixedly connected to the outer wall of the first take-up roller 15, and a second take-up roller 16 is fixedly connected to the top of the first take-up roller 15. The other end of the steel rope 12 is fixedly connected to the outer wall of the second take-up roller 16. When the first take-up roller 15 rotates, it will drive the second take-up roller 16 to rotate together, thereby winding up both ends of the steel rope 12.

[0029] The outer wall of the bolt head 9 is provided with a wear-resistant groove 10. The outer wall of the steel rope 12 is slidably connected to the inner wall of the wear-resistant groove 10. When the two ends of the steel rope 12 are wound up by the first winding roller 15 and the second winding roller 16 respectively, the length of the middle part of the steel rope 12 becomes shorter, and the diameter of the circle formed by the steel rope 12 around the multiple bolt heads 9 also becomes smaller. As a result, the multiple bolt heads 9 will move closer to the center, thereby realizing the adjustment of the position of the multiple mounting bolt rods 8. The scale data of the bolt head 9 can be observed through the scale line 11. The position of the mounting bolt rods 8 on the flange mounting plate 2 can be adjusted according to the size of the flange on the GIS, making the device applicable to most flanges and improving the applicability of the device.

[0030] Working principle: First, when installing the test sleeve body 1, align the flange mounting plate 2 with the flange on the GIS equipment to begin the installation process. Start the motor 13. The output end of the motor 13 drives the rotating rod 14 to rotate through the coupling. The rotating rod 14 will drive the first winding roller 15. When the first winding roller 15 rotates, it will drive the second winding roller 16 to rotate together, thereby winding up both ends of the steel rope 12.

[0031] Secondly, when the two ends of the steel rope 12 are wound up by the first winding roller 15 and the second winding roller 16 respectively, the length of the middle part of the steel rope 12 becomes shorter, and the diameter of the circle formed by the steel rope 12 around the multiple bolt heads 9 also becomes smaller. As a result, the multiple bolt heads 9 will move closer to the center, thereby adjusting the position of the multiple mounting bolt rods 8. The scale data of the bolt head 9 can be observed through the scale line 11, and the position of the mounting bolt rods 8 on the flange mounting plate 2 can be adjusted according to the size of the flange on the GIS, so that the mounting bolt rods 8 can be moved to a position aligned with the through hole on the flange of the GIS equipment.

[0032] Finally, the mounting bolt rod 8 can pass through the through hole on the flange of the GIS equipment. Then, the bolt head 9 is tightened with a nut and a fastening washer, so that the flange mounting plate 2 is installed with the flange on the GIS equipment. The bottom of the flange mounting plate 2 is equipped with a sealing gasket, which can play a sealing role, making the device suitable for most flanges.

[0033] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A 220 KV class GIS general-purpose test bushing comprising a test bushing body (1), characterized in that: The bottom of the test casing body (1) is fixedly connected with a flange mounting disc (2), and the top of the flange mounting disc (2) is provided with a mounting component; The mounting component comprises a mounting channel (3) opened in the top of the flange mounting disc (2), the inner wall of the mounting channel (3) is fixedly connected with a spring (5), one end of the spring (5) is fixedly connected with an adjusting column (6), the bottom of the adjusting column (6) is fixedly connected with a mounting bolt rod (8), the top of the adjusting column (6) is fixedly connected with a bolt head (9), the outer wall of the flange mounting disc (2) is provided with a scale line (11), the inside of the flange mounting disc (2) is processed with a groove, and the inside of the groove is fixedly connected with a motor (13), the output of the motor (13) is fixedly connected with a rotating rod (14) through a shaft coupling, and the top of the rotating rod (14) is provided with an adjusting component.

2. The 220KV class GIS general-purpose test bushing according to claim 1, characterized in that: The outer wall of the adjusting column (6) is slidably connected with the inner wall of the mounting channel (3), and the outer wall of the adjusting column (6) is provided with a through groove (7).

3. The 220 KV class GIS general-purpose test bushing according to claim 2, characterized in that: The inner side wall of the mounting channel (3) is fixedly connected with a limiting rod (4), one end of the limiting rod (4) penetrates through the through groove (7) and extends to the outside of the adjusting column (6), and the limiting rod (4) is slidably connected with the through groove (7).

4. The 220 KV class GIS general-purpose test bushing according to claim 1, characterized in that: The adjusting component comprises a first winding roller (15) fixedly connected to the top of the rotating rod (14), the top of the rotating rod (14) extends to the outside of the flange mounting disc (2), and the rotating rod (14) is rotatably connected with the flange mounting disc (2).

5. The 220 KV class GIS general-purpose test bushing according to claim 4, characterized in that: The outer wall of the first winding roller (15) is fixedly connected with a steel wire (12), the top of the first winding roller (15) is fixedly connected with a second winding roller (16), and the other end of the steel wire (12) is fixedly connected with the outer wall of the second winding roller (16).

6. The 220 KV class GIS general-purpose test bushing according to claim 5, characterized in that: The outer wall of the bolt head (9) is provided with a wear-resistant groove (10), and the outer wall of the steel wire (12) is slidably connected with the inner wall of the wear-resistant groove (10).

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