Extra-high voltage bushing

Abstract

The utility model relates to the technical field of high-voltage bushings, in particular to an extra-high-voltage bushing which comprises an extra-high-voltage bushing body and an insulating plate, a mounting plate is fixedly arranged on the outer side of the extra-high-voltage bushing body, mounting holes are formed in the four sides of the mounting plate, a ground is fixedly arranged at the top end of the extra-high-voltage bushing body, and the insulating plate is fixedly arranged at the top end of the extra-high-voltage bushing body. A fixing mechanism is arranged in the insulating plate, and an auxiliary mechanism is arranged on one side of the insulating plate. According to the utility model, the insulating plate and the high-voltage bushing body can be effectively and fixedly connected, so that the insulating plate can have an insulating effect on bonding of the high-voltage bushing body, the practicability is improved, meanwhile, under the arrangement of the threaded rod and the clamping plate, the insulating plate can be suitable for high-voltage bushing bodies of various sizes, and the practicability is improved. And the clamping plates are arranged in an arc shape, so that the clamping plates can effectively make contact with the high-voltage bushing body, the contact area is increased, and the fixing effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage bushings, in particular to an ultra-high voltage bushing. Background Art

[0002] High-voltage bushings are devices that allow one or more conductors to pass through partitions such as walls or boxes, and serve as insulation and support. They are important equipment in power systems. During the manufacturing, transportation, and maintenance of high-voltage bushings, latent defects may remain due to various reasons; during long-term operation, defects may gradually occur due to the effects of electric fields and conductor heating, mechanical damage and chemical corrosion, and atmospheric conditions.

[0003] A UHV bushing with the public specification of CN218214820U in the utility model patent application in China can ensure the electrical performance of the bushing is stable by using processes such as clean rolling, vacuum drying, vertical assembly, and vacuum pressure oil immersion. However, the voltage acting on the high-voltage bushing during operation is very high, and the local electric field at the corners of the nut is strong, which can easily cause the gas to be ionized and produce electron collapse, making it impossible to effectively insulate it, and it is impossible to effectively protect the ground when not in use. Therefore, a UHV bushing is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide an ultra-high voltage bushing to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A UHV bushing comprises an UHV bushing body and an insulating plate, wherein a mounting plate is fixedly arranged on the outer side of the UHV bushing body, mounting holes are provided on four sides of the mounting plate, a ground is fixedly arranged on the top of the UHV bushing body, a fixing mechanism is arranged inside the insulating plate, an auxiliary mechanism is arranged on one side of the insulating plate, a cover plate is movably arranged on one side of the insulating plate through a hinge, and a locking mechanism is arranged on one side of the cover plate.

[0007] Preferably, the fixing mechanism comprises a threaded rod, a threaded plate and a clamping plate, the inner side of the insulating plate is provided with a threaded rod through a rotating shaft, the outer side of the threaded rod is provided with a threaded plate through a threaded movement, one side of the threaded plate and one side of the inner side of the insulating plate are both fixedly provided with a clamping plate, and the clamping plate is provided in an arc shape;

[0008] Preferably, a plurality of telescopic rods are fixedly arranged on both sides of the interior of the insulating plate, and the telescopic ends of the plurality of telescopic rods are fixedly connected to the clamping plate;

[0009] Preferably, a handle is fixedly provided on the outer side of the insulating plate at one end of the rotating shaft where the threaded rod is located;

[0010] Preferably, the auxiliary mechanism comprises a first fixing plate and a through groove, the first fixing plate is fixedly provided on one side of the insulating plate, and the through groove is provided inside the first fixing plate;

[0011] Preferably, the locking mechanism includes a second fixed plate, a positioning plate, an elastic groove, a spring plate and a spring sheet. A second fixed plate is fixedly provided on one side of the cover plate, a positioning plate is fixedly provided on the bottom end of the second fixed plate, an elastic groove is opened on the bottom end of one side of the positioning plate, a spring plate is provided inside the elastic groove through a rotating shaft, a spring sheet is fixedly provided inside the elastic groove, and the spring sheet is connected to the spring plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. By setting the bottom end of the insulating plate on the top grounding of the high-voltage bushing body, the handles on both sides are rotated in turn to rotate the threaded rod, and under the limiting and guiding action of the telescopic rod, the threaded plates on both sides can be moved horizontally along the surface of the threaded rod, thereby driving the clamping plate to move accordingly, until the clamping plate contacts the high-voltage bushing body, and then the handle is stopped from being rotated. This setting can effectively produce a fixed connection effect between the insulating plate and the high-voltage bushing body, so that it can produce an insulating effect on the grounding of the high-voltage bushing body, thereby improving practicality. At the same time, under the setting of the threaded rod and the clamping plate, the insulating plate can be applied to high-voltage bushing bodies of various sizes, thereby enhancing the overall practicality of the equipment. By setting the clamping plate in an arc shape, it can effectively contact the high-voltage bushing body, increase the contact area, and improve the fixing effect.

[0014] 2. By rotating the cover plate, the positioning plate at one end of the cover plate is inserted into the through groove of the first fixed plate. When the cover plate and the insulating plate are closed, the positioning plate moves to the bottom position, and under the action of the spring sheet, the spring plate can pop out of the elastic groove and produce a resistance effect with the bottom end of the first fixed plate. This setting can effectively wrap the ground between the insulating plate and the cover plate, effectively protecting the ground, and preventing the ground from being exposed to the outside for a long time when not in use, affecting the use effect. At the same time, this operation is relatively simple and convenient. When in use, you only need to press the spring plate inward to retract the spring plate into the elastic groove to cancel the fixing effect and easily open the cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall front view structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the overall front view and cross-sectional structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the top view structure of the insulation board of the utility model;

[0018] Figure 4 For this utility model Figure 2 A magnified schematic diagram of center A.

[0019] In the figure: 1. UHV bushing body; 2. Insulating plate; 3. Mounting plate; 4. Mounting hole; 5. Grounding; 6. Cover plate; 7. Threaded rod; 8. Threaded plate; 9. Clamping plate; 10. Telescopic rod; 11. Handle; 12. First fixing plate; 13. Through slot; 14. Second fixing plate; 15. Positioning plate; 16. Elastic slot; 17. Spring plate; 18. Shrapnel. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-Figure 4 As shown, a technical solution provided by the utility model:

[0022] A UHV bushing comprises an UHV bushing body 1 and an insulating plate 2, a mounting plate 3 is fixedly arranged on the outer side of the UHV bushing body 1, mounting holes 4 are opened on four sides of the mounting plate 3, a grounding iron 5 is fixedly arranged on the top of the UHV bushing body 1, a fixing mechanism is arranged inside the insulating plate 2, an auxiliary mechanism is arranged on one side of the insulating plate 2, a cover plate 6 is movably arranged on one side of the insulating plate 2 through a hinge, and a clamping mechanism is arranged on one side of the cover plate 6;

[0023] Through the above solution, under the action of the mounting plate 3 and the mounting hole 4, it is convenient for the staff to effectively install the UHV bushing body 1 and maintain the stability of the UHV bushing body 1.

[0024] In this embodiment, preferably, the fixing mechanism includes a threaded rod 7, a threaded plate 8 and a clamping plate 9, the threaded rod 7 is provided on one side of the interior of the insulating plate 2 through a rotating shaft, the threaded plate 8 is movably provided on the outer side of the threaded rod 7 through a thread, and the clamping plate 9 is fixedly provided on one side of the threaded plate 8 and one side of the interior of the insulating plate 2, and the clamping plate 9 is arranged in an arc shape;

[0025] Through the above scheme, under the action of the clamping plate 9, the top of the UHV bushing body 1 can be effectively clamped and fixed, so that the insulating plate 2 is easily installed at the top position of the UHV bushing body 1;

[0026] In this embodiment, preferably, a plurality of telescopic rods 10 are fixedly arranged on both sides of the interior of the insulating plate 2, and the telescopic ends of the plurality of telescopic rods 10 are fixedly connected to the clamping plate 9;

[0027] Through the above scheme, the clamping plate 9 is limited so that it can maintain horizontal displacement;

[0028] In this embodiment, preferably, a handle 11 is fixedly provided on the outer side of the insulating plate 2 at one end of the rotating shaft where the threaded rod 7 is located;

[0029] Through the above scheme, the displacement distance of the clamping plate 9 can be controlled to achieve the clamping and fixing effect of the UHV bushing bodies 1 of different sizes;

[0030] In this embodiment, preferably, the auxiliary mechanism includes a first fixing plate 12 and a through slot 13. The first fixing plate 12 is fixedly disposed on one side of the insulating plate 2, and the through slot 13 is opened inside the first fixing plate 12.

[0031] Through the above scheme, it can cooperate with the snap-fit ​​mechanism to produce a closing effect;

[0032] In this embodiment, preferably, the engaging mechanism includes a second fixing plate 14, a positioning plate 15, an elastic groove 16, an elastic plate 17 and an elastic piece 18. The second fixing plate 14 is fixedly provided on one side of the cover plate 6, and the positioning plate 15 is fixedly provided on the bottom end of the second fixing plate 14. An elastic groove 16 is provided on the bottom end of one side of the positioning plate 15, and an elastic plate 17 is provided inside the elastic groove 16 through a rotating shaft. An elastic piece 18 is fixedly provided inside the elastic groove 16, and the elastic piece 18 is connected to the elastic plate 17;

[0033] Through the above solution, the spring piece 18 can eject the spring plate 17 out of the elastic groove 16 , so that the spring plate 17 can produce a resistance effect with the first fixing plate 12 , thereby achieving fixation between the cover plate 6 and the insulating plate 2 .

[0034] A UHV bushing of the present embodiment is provided by sleeve-mounting the bottom end of the insulating plate 2 on the top grounding 5 of the high-voltage bushing body. At this time, the handles 11 on both sides are rotated in turn to rotate the threaded rod 7. Under the limiting and guiding action of the telescopic rod 10, the threaded plates 8 on both sides can be moved horizontally along the surface of the threaded rod 7, thereby driving the clamping plate 9 to move accordingly. After the clamping plate 9 contacts the high-voltage bushing body, the handle 11 is stopped from rotating. This setting can effectively produce a fixed connection effect between the insulating plate 2 and the high-voltage bushing body, so that it can produce an insulating effect on the grounding 5 of the high-voltage bushing body, thereby improving practicality. At the same time, under the setting of the threaded rod 7 and the clamping plate 9, the insulating plate 2 can be applied to high-voltage bushing bodies of various sizes, thereby enhancing the overall practicality of the equipment. By setting the clamping plate 9 in an arc shape, it can effectively contact the high-voltage bushing body, thereby enhancing the contact area and improving the fixing effect.

[0035] By rotating the cover plate 6, the positioning plate 15 at one end of the cover plate 6 is inserted into the through groove 13 of the first fixed plate 12. When the cover plate 6 and the insulating plate 2 are closed, the positioning plate 15 moves to the bottom position, and under the action of the spring sheet 18, the spring plate 17 can be ejected from the elastic groove 16 and produce a resistance effect with the bottom end of the first fixed plate 12. This setting can effectively wrap the grounding 5 between the insulating plate 2 and the cover plate 6, and effectively protect the grounding 5 to prevent the grounding 5 from being exposed to the outside for a long time when not in use, affecting the use effect. At the same time, this operation is relatively simple and convenient. When in use, you only need to press the spring plate 17 inward to retract the spring plate 17 into the elastic groove 16 to cancel the fixing effect and easily open the cover plate 6.

[0036] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A UHV bushing, comprising a UHV bushing body (1) and an insulating plate (2), characterized in that: A mounting plate (3) is fixedly provided on the outer side of the UHV bushing body (1), mounting holes (4) are provided on four sides of the mounting plate (3), a grounding iron (5) is fixedly provided on the top of the UHV bushing body (1), a fixing mechanism is provided inside the insulating plate (2), an auxiliary mechanism is provided on one side of the insulating plate (2), a cover plate (6) is movably provided on one side of the insulating plate (2) via a hinge, and a locking mechanism is provided on one side of the cover plate (6).

2. The UHV bushing according to claim 1, characterized in that: The fixing mechanism comprises a threaded rod (7), a threaded plate (8) and a clamping plate (9); the threaded rod (7) is arranged on one side of the interior of the insulating plate (2) via a rotating shaft; the threaded plate (8) is movably arranged on the outer side of the threaded rod (7) via a thread; the clamping plate (9) is fixedly arranged on one side of the threaded plate (8) and one side of the interior of the insulating plate (2); and the clamping plate (9) is arranged in an arc shape.

3. The UHV bushing according to claim 2, characterized in that: A plurality of telescopic rods (10) are fixedly arranged on both sides of the interior of the insulating plate (2), and the telescopic ends of the plurality of telescopic rods (10) are fixedly connected to the clamping plate (9).

4. The UHV bushing according to claim 2, characterized in that: A handle (11) is fixedly provided on the outer side of the insulating plate (2) at one end of the rotating shaft where the threaded rod (7) is located.

5. The UHV bushing according to claim 1, characterized in that: The auxiliary mechanism comprises a first fixing plate (12) and a through groove (13); the first fixing plate (12) is fixedly arranged on one side of the insulating plate (2); and the through groove (13) is provided inside the first fixing plate (12).

6. The UHV bushing according to claim 1, characterized in that: The locking mechanism comprises a second fixing plate (14), a positioning plate (15), an elastic groove (16), a spring plate (17) and a spring piece (18); the second fixing plate (14) is fixedly arranged on one side of the cover plate (6); the positioning plate (15) is fixedly arranged on the bottom end of the second fixing plate (14); an elastic groove (16) is provided on the bottom end of one side of the positioning plate (15); the elastic plate (17) is arranged inside the elastic groove (16) via a rotating shaft; the spring piece (18) is fixedly arranged inside the elastic groove (16); and the spring piece (18) is connected to the spring plate (17).

Images