Extra-high voltage double-ring grading ring

Abstract

Provided is an extra-high voltage double-ring grading ring. Relates to the technical field of power equipment. Comprising an upper ring body and a lower ring body, the upper ring body and the lower ring body are connected through at least one pair of supporting mechanisms, each supporting mechanism comprises a sleeve and a supporting rod, the outer wall of the bottom of each sleeve is connected with the bottom of the upper ring body, one end of each supporting rod is inserted into the inner side of the corresponding sleeve, and the other end of each supporting rod is connected with the corresponding sleeve. The other end of the supporting rod is connected with the top of the lower ring body; a spring is arranged on the inner side of the sleeve, one end of the spring is connected with the inner wall of the bottom of the sleeve, the other end of the spring is connected with the end, located in the sleeve, of the supporting rod, a plurality of fin plates are arranged on the outer wall of the supporting rod, and the fin plates are arranged in the height direction of the supporting rod at intervals. The fin plates and the sleeve can be connected through bolts. According to the invention, the distance between the upper ring body and the lower ring body can be adjusted, so that the grading ring can adapt to different installation environments.

Description

Technical Field

[0001] This application relates to the field of power equipment technology, specifically to an ultra-high voltage double-ring equalizing ring. Background Technology

[0002] An equalizing ring is a ring-shaped protective fitting that improves the voltage distribution of an insulator string. The function of the equalizing ring is to prevent side lightning strikes. It is suitable for AC voltage and can evenly distribute high voltage around the object, ensuring that there is no potential difference between different parts of the ring, thereby achieving the effect of equalizing voltage.

[0003] Chinese patent document CN213183786U discloses an adjustable-position electric field equalizing ring, specifically an upper equalizing ring and a lower equalizing ring. The upper and lower equalizing rings are connected by a set of columns. Each column has equally spaced small holes. A mounting plate connects the columns, and a set of mounting heads extends evenly from the periphery of the mounting plate. A movable slider is fixedly mounted on each mounting head, and each movable slider is mounted on a column via a resilient pin assembly. This utility model employs a double-ring design with upper and lower equalizing rings. After installation with the mounting plate, adjusting the vertical position of the columns on the mounting plate achieves the purpose of adjusting the position of the upper and lower equalizing rings.

[0004] However, in the aforementioned patent, the distance between the upper and lower equalizing rings is fixed. When the installation environment changes, the distance between the upper and lower equalizing rings cannot be adjusted, thus affecting the overall equalization effect. Utility Model Content

[0005] To overcome the shortcomings of the prior art, this application provides an ultra-high voltage double-ring equalizing ring.

[0006] This application adopts the following technical solution: an ultra-high voltage double-ring equalizing ring, including an upper ring body and a lower ring body, wherein the upper ring body and the lower ring body are connected by at least one pair of support mechanisms, wherein the support mechanism includes a sleeve and a support rod, the outer wall of the bottom of the sleeve is connected to the bottom of the upper ring body, the opening of the sleeve faces the lower ring body, one end of the support rod is inserted into the inner side of the sleeve, and the other end of the support rod is connected to the top of the lower ring body;

[0007] A spring is provided on the inner side of the sleeve. One end of the spring is connected to the inner wall of the bottom of the sleeve, and the other end of the spring is connected to the end of the support rod located inside the sleeve. A plurality of fins are provided on the outer wall of the support rod. The plurality of fins are spaced apart along the height direction of the support rod. The fins are connected to the sleeve by bolts.

[0008] Optionally, the outer wall of the support rod is provided with a plurality of receiving groove groups, which are arranged at intervals along the vertical direction. Each receiving groove group includes a pair of receiving grooves, which are symmetrically arranged on both sides of the support rod. Each receiving groove is provided with a rotating shaft and a wing plate. The wing plate is connected to the rotating shaft and has a through hole. The sleeve has a threaded hole at its opening. When the wing plate rotates from a vertical state to a horizontal state, the through hole and the threaded hole are coaxial. The bolt passes through the through hole and is screwed into the threaded hole.

[0009] Optionally, when the fin is in a horizontal state, one side of the fin is flush with the opening of the receiving groove, and the other side of the fin is in contact with the bottom of the receiving groove.

[0010] Optionally, the outer wall of the support rod fits against the inner wall of the sleeve, and the outer edge of the bolt is located inside the outer edge of the sleeve.

[0011] Optionally, the head of the bolt passes through the through hole and is adapted to be screwed into the threaded hole, the tail of the bolt is fitted with the side wall of the fin, and the tail end face of the bolt is provided with an internal hexagonal hole.

[0012] Compared with the prior art, this application can reliably adjust the height of the support mechanism by selecting fins of different heights to connect with the sleeve, thereby adjusting the distance between the upper ring and the lower ring, so that the equalizing ring can adapt to different installation environments. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this application;

[0014] Figure 2 This is a cross-sectional view of the internal structure of the support mechanism;

[0015] Figure 3 yes Figure 2 Reference diagram of the action state;

[0016] In the diagram: 1. Upper ring body; 2. Lower ring body; 3. Support mechanism; 31. Sleeve; 310. Threaded hole; 32. Support rod; 321. Receiving groove; 322. Rotating shaft; 323. Fin plate; 3230. Through hole; 33. Spring; 34. Bolt; 340. Internal hexagonal hole. Detailed Implementation

[0017] The present application will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0018] like Figure 1-3As shown, an ultra-high voltage double-ring equalizing ring includes an upper ring body 1 and a lower ring body 2. The upper ring body 1 and the lower ring body 2 are connected by at least one pair of support mechanisms 3. The support mechanism 3 includes a sleeve 31 and a support rod 32. The outer wall of the bottom of the sleeve 31 is connected to the bottom of the upper ring body 1, and the opening of the sleeve 31 faces the lower ring body 2. One end of the support rod 32 is inserted into the inner side of the sleeve 31, and the other end of the support rod 32 is connected to the top of the lower ring body 2. A spring 33 is provided on the inner side of the sleeve 31. One end of the spring 33 is connected to the inner wall of the bottom of the sleeve 31, and the other end of the spring 33 is connected to the end of the support rod 32 located inside the sleeve 31. A plurality of fins 323 are provided on the outer wall of the support rod 32. The plurality of fins 323 are spaced apart along the height direction of the support rod 32. The fins 323 and the sleeve 31 can be connected by bolts 34.

[0019] By selecting fins 323 of different heights to connect with sleeves 31, the depth to which the support rod 32 passes through the sleeve 31 is adjustable, thus achieving adjustment of the overall length of the support mechanism 3. This, in turn, allows adjustment of the distance between the upper ring 1 and the lower ring 2, enabling the equalizing ring to adapt to different installation environments. Furthermore, the spring 33 inside the sleeve 31 is always in a compressed state. Thus, under the elastic force of the spring 33 on the support rod 32, the bolt 34 maintains its locking effect on the fins 323, preventing the bolt 34 from loosening or even falling off.

[0020] The outer wall of the support rod 32 is provided with a plurality of receiving grooves 321. The plurality of receiving grooves 321 are arranged at intervals along the vertical direction. Each receiving groove 321 includes a pair of receiving grooves 321. The pair of receiving grooves 321 are symmetrically arranged on both sides of the support rod 32. Each receiving groove 321 is provided with a rotating shaft 322 and a fin plate 323. The fin plate 323 is connected to the rotating shaft 322. The fin plate 323 is provided with a through hole 3230. The sleeve 31 is provided with a threaded hole 310 at the opening. When the fin plate 323 rotates from the vertical state to the horizontal state, the through hole 3230 and the threaded hole 310 are in a coaxial state. The bolt 34 passes through the through hole 3230 and is screwed into the threaded hole 310.

[0021] Two symmetrical receiving slots 321 form a set of receiving slots 321. Multiple sets of receiving slots 321 are spaced apart along the height direction of the support rod 32. Each receiving slot 321 is provided with a rotating shaft 322 and a fin 323 connected to each other. In this way, first disconnect the connection between the fin 323 and the bolt 34, and then press or pull the lower ring 2 so that the opening of the sleeve 31 can be aligned with the receiving slots 321 of different heights. At this time, the initial height adjustment of the support mechanism 3 is completed. Then, rotate the fin 323 so that the fin 323 rotates from inside the receiving slot 321 to outside the receiving slot 321, that is, from the vertical state to the horizontal state. Finally, screw the bolt 34 into the through hole 3230 and the threaded hole 310 to complete the connection between the fin 323 and the sleeve 31, and realize the final height adjustment and fixation of the support mechanism 3.

[0022] When the fin 323 is in a horizontal state, one side of the fin 323 is flush with the opening of the receiving groove 321, and the other side of the fin 323 is in contact with the bottom of the receiving groove 321. The outer wall of the support rod 32 is in contact with the inner wall of the sleeve 31, and the outer edge of the bolt 34 is located inside the outer edge of the sleeve 31. This improves the overall flatness and helps to improve the pressure equalization effect.

[0023] The head of bolt 34 passes through through hole 3230 and is screwed into threaded hole 310. The tail of bolt 34 fits against the side wall of fin 323, and the tail end face of bolt 34 is provided with internal hexagonal hole 340. Due to the small wall thickness of sleeve 31, the size of bolt 34 is also limited to a small size. At this time, by using an internal hexagonal wrench in conjunction with internal hexagonal hole 340, bolt 34 can be rotated conveniently and quickly, thereby improving the disassembly and assembly speed of fin 323 and sleeve 31.

[0024] The above embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of protection of this application. Any non-substantial changes and substitutions made by those skilled in the art based on this application shall fall within the scope of protection claimed by this application.

Claims

1. A double-ring equalizing ring for ultra-high voltage, comprising an upper ring body (1) and a lower ring body (2), wherein the upper ring body (1) and the lower ring body (2) are connected by at least one pair of support mechanisms (3), characterized in that, The support mechanism (3) includes a sleeve (31) and a support rod (32). The outer wall of the bottom of the sleeve (31) is connected to the bottom of the upper ring (1). The opening of the sleeve (31) faces the lower ring (2). One end of the support rod (32) is inserted into the inner side of the sleeve (31), and the other end of the support rod (32) is connected to the top of the lower ring (2). The inner side of the sleeve (31) is provided with a spring (33). One end of the spring (33) is connected to the inner wall of the bottom of the sleeve (31), and the other end of the spring (33) is connected to the end of the support rod (32) located inside the sleeve (31). The outer wall of the support rod (32) is provided with a plurality of fins (323). The plurality of fins (323) are spaced apart along the height direction of the support rod (32). The fins (323) and the sleeve (31) can be connected by bolts (34).

2. The ultra-high voltage double-ring equalizing ring according to claim 1, characterized in that, The outer wall of the support rod (32) is provided with a plurality of receiving groove groups, which are arranged at intervals along the vertical direction. Each receiving groove group includes a pair of receiving grooves (321). The pair of receiving grooves (321) are symmetrically arranged on both sides of the support rod (32). Each receiving groove (321) is provided with a rotating shaft (322) and a fin plate (323). The fin plate (323) is connected to the rotating shaft (322). The fin plate (323) is provided with a through hole (3230). The sleeve (31) is provided with a threaded hole (310) at the opening. When the fin plate (323) rotates from the vertical state to the horizontal state, the through hole (3230) and the threaded hole (310) are in a coaxial state. The bolt (34) passes through the through hole (3230) and is screwed into the threaded hole (310).

3. The ultra-high voltage double-ring equalizing ring according to claim 2, characterized in that, When the fin (323) is in a horizontal state, one side of the fin (323) is flush with the opening of the receiving groove (321), and the other side of the fin (323) is in contact with the bottom of the receiving groove (321).

4. The ultra-high voltage double-ring equalizing ring according to claim 2, characterized in that, The outer wall of the support rod (32) is in contact with the inner wall of the sleeve (31), and the outer edge of the bolt (34) is located inside the outer edge of the sleeve (31).

5. The ultra-high voltage double-ring equalizing ring according to claim 4, characterized in that, The head of the bolt (34) passes through the through hole (3230) and is adapted to be screwed into the threaded hole (310). The tail of the bolt (34) is attached to the side wall of the fin (323). The tail end face of the bolt (34) is provided with an internal hexagonal hole (340).

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