A high voltage electrical insulation protection device

CN224652091UActive Publication Date: 2026-08-18HUADIAN LONGKOU POWER GENERATION CO LTD
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Patent Information

Application Number
CN202521821968.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-26
Publication Date
2026-08-18
Estimated Expiration
2035-08-26

AI Technical Summary

Technical Problem

绝缘子在架空输电线路中起着两个基本作用,即支撑导线和防止电流回地,这两个作用必须得到保证,绝缘子不应该产生由于环境和电负荷条件发生变化导致的闪络击穿而失效,否则绝缘子就会失去作用,会损害整条线路的使用和运行寿命,现有的电气绝缘子结构一般为固定结构,无法改变支撑结构长度,且绝缘子内部无法通过导线,无法使连接导线之间进行导线连接传输工作

Benefits of technology

通过于绝缘装置支撑盘内部设置由螺纹杆带动进行伸缩升降的升降盘结构,进一步与升降盘结构与支撑板之间设置波纹伸缩绝缘管,进一步于波纹伸缩绝缘管外周设置分层绝缘子环,使装置可根据需要调整伸缩长度以及根据长度灵活调整绝缘子环数量,进一步于装置内部开设有导线孔,使导线或需要保护结构放置进入波纹伸缩绝缘管内部进行保护,进一步于装置上下设置导线固定结构用于导线固定。

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Abstract

The utility model provides a kind of high voltage electrical insulation protection device, it is mainly related to electrical protection equipment field.A kind of high voltage electrical insulation protection device, including support disc.The utility model has beneficial effect in that: by the lifting disc structure of telescopic lifting driven by thread rod is set in the inside of insulation device support disc, further with lifting disc structure and support plate between setting corrugated telescopic insulating tube, further to the periphery of corrugated telescopic insulating tube setting layered insulator ring, so that device can be adjusted telescopic length according to need and according to length flexible adjustment insulator ring quantity, further to the inside of device being provided with wire hole, so that wire or need protection structure is placed into the inside of corrugated telescopic insulating tube and is protected, further to the wire fixing structure for wire fixed on the device upper and lower.
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Description

Technical Field

[0001] This utility model mainly relates to the field of electrical protection equipment, specifically a high-voltage electrical insulation protection device. Background Technology

[0002] Post insulators are special insulating components that play a crucial role in overhead transmission lines. In the past, post insulators were primarily used on utility poles. Gradually, they evolved into numerous suspended insulators hanging from one end of high-voltage power line towers to increase creepage distance. These insulators, typically made of silicone or ceramic, are called insulators. Insulators in overhead transmission lines serve two fundamental functions: supporting the conductors and preventing current from returning to ground. These two functions must be guaranteed. Insulators should not fail due to flashover breakdown caused by changes in environmental and electrical load conditions; otherwise, the insulator will lose its function, compromising the service life and operational life of the entire line. Existing electrical insulator structures are generally fixed, preventing changes to the length of the supporting structure, and conductors cannot pass through the insulator, hindering the connection and transmission of power between conductors. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a high-voltage electrical insulation protection device. Its main advantages are: a lifting plate structure, driven by a threaded rod, is installed inside the support plate of the insulation device; a corrugated telescopic insulating tube is installed between the lifting plate structure and the support plate; layered insulator rings are installed around the outer periphery of the corrugated telescopic insulating tube; the device allows for adjustment of the telescopic length and the number of insulator rings based on the length; wire holes are provided inside the device to allow wires or structures requiring protection to be placed inside the corrugated telescopic insulating tube for protection; and wire fixing structures are provided at the top and bottom of the device for wire fixation.

[0004] To achieve the above objectives, this utility model employs the following technical solution: A high-voltage electrical insulation protection device includes a support plate with a threaded hole at its center. A threaded rod is provided inside the threaded hole and threadedly engages with it. A lifting plate rotating shaft seat is fixedly provided at the lower center of the threaded rod. A lifting plate is rotatably connected to the outer periphery of the lifting plate rotating shaft seat. A corrugated telescopic insulating tube is fixedly connected between the upper part of the lifting plate and the bottom of the support plate. A sliding column sleeve hole plate is fixedly provided around the periphery of each layer of the corrugated telescopic insulating tube. A sliding column is fixedly provided at the upper part of the lifting plate at a position corresponding to the sliding column sleeve hole plate, penetrating the sliding column sleeve hole plate and the support plate, and slidably connected to it. Furthermore, insulator support rods are fixedly provided on both sides of the upper part of the lifting plate, passing through the support plate and slidably connected to it. Insulator support holes are opened at equal intervals on one side of the insulator support rod. Semi-circular insulators can be provided at corresponding positions on both sides of the insulator support rods. Insulator support rod grooves are opened on both sides of the semi-circular insulators and fitted onto the outer circumference of the insulator support rods. Insulator support rod groove columns are fixed inside the insulator support rod grooves and can be inserted into the insulator support holes. Screw holes are opened on both sides of the semi-circular insulators, and fixing screws can be provided inside the screw holes.

[0005] Furthermore, the sliding column and the upper part of the insulator support rod are jointly and fixedly connected to a support rod disk. The support rod disk has a through hole in its center, which is sleeved on the outer periphery of the threaded rod and rotatably connected to it. The support rod disk has wire holes on both sides that pass through the support disk and the lifting disk. The upper part of the support rod disk and the lower part of the lifting disk are fixedly provided with wire fixing grooves on both sides. The wire fixing grooves are fixedly provided with threaded fixing plates on both sides. The threaded fixing plates are fixedly provided with wire fixing plates on the upper part of the threaded fixing plates.

[0006] Furthermore, a rotating knob is fixedly provided at the center of the upper part of the threaded rod.

[0007] Compared with the existing technology, the beneficial effects of this utility model are: The device incorporates a lifting plate structure that extends and retracts via a threaded rod within the support plate of the insulation device. A corrugated telescopic insulating tube is further installed between the lifting plate structure and the support plate. Layered insulator rings are then installed around the outer periphery of the corrugated telescopic insulating tube, allowing the device to adjust its telescopic length and the number of insulator rings as needed. Furthermore, wire holes are provided inside the device to allow wires or structures requiring protection to be placed inside the corrugated telescopic insulating tube for protection. Finally, wire fixing structures are installed at the top and bottom of the device for wire fixation. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model; Figure 3 This is a schematic diagram of the structure of this utility model; Figure 4 This is a schematic diagram of the lifting plate structure of this utility model; Figure 5 This is a schematic diagram of the support plate structure of this utility model; Figure 6 This is a schematic diagram of the semi-circular ring insulator structure of this utility model.

[0009] The following are the labels in the attached diagram: 1. Support plate; 2. Threaded hole; 3. Threaded rod; 4. Lifting plate pivot seat; 5. Lifting plate; 6. Corrugated telescopic insulating tube; 7. Sliding column sleeve hole plate; 8. Sliding column; 9. Insulator support rod; 10. Insulator support hole; 11. Semi-circular ring insulator; 12. Insulator support rod slot; 13. Insulator support rod slot column; 14. Screw hole; 15. Fixing screw; 16. Support rod plate; 17. Through hole; 18. Wire hole; 19. Wire fixing slot; 20. Fixing plate threaded seat; 21. Wire fixing plate; 22. Rotating knob. Detailed Implementation

[0010] The present invention will be further described in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined in this application.

[0011] Example: A high-voltage electrical insulation protection device like Figure 1-6 As shown, a high-voltage electrical insulation protection device has the following specific structure: A high-voltage electrical insulation protection device includes a support plate 1. A threaded hole 2 is formed in the center of the support plate 1. A threaded rod 3 is threadedly engaged with the threaded hole 2. A lifting plate 5 is fixedly mounted on the lower center of the threaded rod 3. A lifting plate 5 is rotatably connected to the lifting plate 5 and fitted around the lifting plate 5. Rotating the threaded rod 3 allows it to extend by engaging with the threaded hole 2, further changing the height of the lifting plate 5. A corrugated telescopic insulating tube 6 is fixedly connected between the upper part of the lifting plate 5 and the bottom of the support plate 1. The lifting plate 5 is used to raise and lower, changing the extension levels and length of the corrugated telescopic insulating tube 6. Each layer of the corrugated telescopic insulating tube 6 has a sliding column sleeve plate 7 fixedly mounted around its perimeter. A sliding column 8 is fixedly mounted on the upper part of the lifting plate 5 at a position corresponding to the sliding column sleeve plate 7, penetrating the sliding column sleeve plate 7 and the support plate 1, and slidably connected to it. The position of the corrugated telescopic insulating tube 6 is fixed by the engagement of the sliding column 8 and the sliding column sleeve plate 7. Insulator support rods 9 are fixedly installed on both sides of the upper part of the lifting plate 5, passing through the support plate 1 and slidably connected to it. Insulator support holes 10 are equally spaced through one side of the insulator support rods 9. Semi-circular insulators 11 can be provided at corresponding positions on both sides of the insulator support rods 9. The semi-circular insulators 11 on both sides are connected to form a complete ring insulator. Insulator support rod grooves 12 are opened on both sides of the semi-circular insulators 11 and are sleeved on the outer periphery of the insulator support rods 9. Insulator support rod groove columns 13 are fixed inside the insulator support rod grooves 12 and can be inserted into the insulator support holes 10 to limit the semi-circular insulators 11. Screw holes 14 are opened on both sides of the semi-circular insulators 11. Fixing screws 15 can be provided inside the screw holes 14 to fix and connect the semi-circular insulators 11 on both sides.

[0012] The sliding column 8 and the upper part of the insulator support rod 9 are fixedly connected to a support rod disk 16. The support rod disk 16 has a through hole 17 in the center and is sleeved on the outer periphery of the threaded rod 3 and rotatably connected to it. The support rod disk 16 has wire holes 18 on both sides that pass through the support disk 1 and the lifting disk 5. Wires are placed through the wire holes 18 for communication between the upper and lower wires. The upper part of the support rod disk 16 and the lower part of the lifting disk 5 are fixedly provided with wire fixing grooves 19 for fixing wires. The wire fixing grooves 19 are fixedly provided with fixing plate thread seats 20 on both sides. The fixing plate thread seats 20 are fixedly provided with wire fixing plates 21 on the upper part.

[0013] A rotating knob 22 is fixedly provided at the center of the upper part of the threaded rod 3 for rotating the threaded rod 3 to adjust its length relative to the support plate 1.

[0014] Working principle: In use, the device first fixes the required high-voltage conductor to the conductor fixing groove 19 using the conductor fixing plate 21. Then, the required connecting conductors are passed through the conductor holes 18. The semi-circular insulators 11 and the corrugated telescopic insulating tube 6 inside the device provide insulation protection for each conductor. When the device needs to extend its length according to the application scenario, the rotating knob 22 drives the threaded rod 3 to rotate, causing it to engage with the threaded hole 2 and descend. The corrugated telescopic insulating tube 6 is then stretched, increasing the number of unfolding layers. The semi-circular insulators 11 are then attached to both sides of the unfolding layers, and the insulator support rod slots 13 on both sides of the semi-circular insulators 11 are inserted into the insulator support holes 10 to limit their movement. Finally, the fixing screws 15 fix the two semi-circular insulators 11 together, thereby increasing the length of the device by increasing the number of semi-circular insulator layers.

[0015] In explaining this utility model, it should be noted that the terms indicating location are only for ease of description and understanding, and are not intended to limit the installation location of specific technical features. Other possible installation methods are not excluded.

[0016] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A high-voltage electrical insulation protection device comprising a support disc (1), characterised in that: The support plate (1) has a threaded hole (2) in the center. The threaded hole (2) has a threaded rod (3) inside it for threaded engagement. The lower center of the threaded rod (3) is fixedly provided with a lifting plate pivot seat (4). The lifting plate pivot seat (4) is fitted with a lifting plate (5) on its outer periphery and is rotatably connected to it. The upper part of the lifting plate (5) is fixedly connected to the bottom of the support plate (1) with a corrugated telescopic insulating tube (6). Each layer of the corrugated telescopic insulating tube (6) has a sliding column sleeve hole plate (7) fixedly provided around its periphery. The upper part of the lifting plate (5) is fixedly provided with a sliding column (8) at the corresponding position of the sliding column sleeve hole plate (7) and the support plate (1) for sliding connection.

2. The high-voltage electrical insulation protection device according to claim 1, characterized in that: The upper two sides of the lifting plate (5) are fixedly provided with insulator support rods (9) that pass through the support plate (1) and are slidably connected to it. Insulator support holes (10) are opened through one side of the insulator support rod (9) at equal intervals. Semi-circular insulators (11) can be provided at corresponding positions on both sides of the insulator support rod (9). Insulator support rod grooves (12) are opened on both sides of the semi-circular insulator (11) and are sleeved on the outer periphery of the insulator support rod (9). Insulator support rod groove columns (13) are fixedly provided inside the insulator support rod grooves (12) and can be inserted into the insulator support holes (10). Screw holes (14) are opened on both sides of the semi-circular insulator (11), and fixing screws (15) can be provided inside the screw holes (14).

3. A high-voltage electrical insulation protection device according to claim 2, characterized in that: The sliding column (8) and the upper part of the insulator support rod (9) are fixedly connected to a support rod plate (16). The support rod plate (16) has a through hole (17) in the center, which is sleeved on the outer periphery of the threaded rod (3) and rotated therewith. The support rod plate (16) has wire holes (18) on both sides, which pass through the support plate (1) and the lifting plate (5). The upper part of the support rod plate (16) and the lower part of the lifting plate (5) are fixedly provided with wire fixing grooves (19). The wire fixing grooves (19) are fixedly provided with fixing plate thread seats (20) on both sides. The fixing plate thread seats (20) are fixedly provided with wire fixing plates (21) on the upper part.

4. A high-voltage electrical insulation protection device according to claim 3, characterized in that: A rotating knob (22) is fixedly provided at the center of the upper part of the threaded rod (3).