Waterproof power insulator

By introducing components such as elastic core rods, centrifugal wheels, and scraping impellers into power insulators, the problem of water accumulation under extreme weather conditions has been solved, thereby improving the waterproof and insulation performance of the insulators.

CN120413205BActive Publication Date: 2026-04-10JIANGXI TIANXI ELECTRIC POWER EQUIPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JIANGXI TIANXI ELECTRIC POWER EQUIPMENT CO LTD
Filing Date
2025-05-30
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

Existing electrical insulators are prone to water accumulation in extreme weather conditions, which reduces their insulation effectiveness and creates conductive paths.

Method used

It adopts a waterproof design including components such as elastic core rod, centrifugal wheel, scraping impeller and irregular core rod, and removes accumulated water through elastic deformation, wind scraping and gravity water throwing.

Benefits of technology

It effectively prevents water accumulation, improves the waterproof and insulating properties of insulators, and ensures good insulation performance under extreme weather conditions.

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Abstract

The application discloses a waterproof power insulator and relates to the technical field of insulators. The waterproof power insulator comprises an insulating disc, the insulating disc comprises a main disc body, the main disc body is in the shape of an umbrella, a steel cap is fixedly connected to the top protruding part of the main disc body, the main disc body is made of electrical porcelain, a deformation drainage module, a wind force scraping module and a gravity water throwing module are fixedly connected to the inside of the main disc body, the deformation drainage module comprises an elastic core rod, the wind force scraping module comprises a scraping wind wheel, and the gravity water throwing module comprises a special-shaped core rod. The waterproof power insulator is provided with the elastic core rod, the drainage disc, the scraping wind wheel and the special-shaped core rod, the elastic core rod drives the insulator to throw off accumulated water, the waterproof performance of the insulator is improved, the scraping wind wheel scrapes off water adhered to the upper disc body, the special-shaped core rod is matched with the insulating disc to improve the effect of throwing off accumulated water, and thus the waterproof performance of the insulator is improved.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of insulators, in particular to a waterproof power insulator. BACKGROUND

[0002] The insulator is a special insulating control device for realizing mechanical support and electrical insulation, and plays an important role in overhead transmission lines. At present, it is mostly used at one end of a high-voltage wire connecting tower and is in the shape of a disc and made of insulating material.

[0003] The patent application with the publication number CN118507177A discloses a self-cleaning power insulator, which comprises an insulator support, a cleaning fan and a fork-shaped cleaning frame. The outer side of the insulator support is uniformly provided with insulating discs. The cleaning fan is nested and installed in the middle part of the insulator support, and one side of the cleaning fan is fixedly provided with a linkage plate. One end of the fork-shaped cleaning frame is provided with a return type sleeve. The present scheme adopts a relatively simple self-cleaning structure, which comprises a cleaning fan nested in the middle part of the insulator support. The cleaning fan is fixedly provided with a linkage plate on one side. The linkage plate is nested with a fork-shaped cleaning frame on the outer side. The fork-shaped cleaning frame is made of flexible plastic material. The brush plate at one end of the fork-shaped cleaning frame is tightly attached to the surface of the insulating disc. The cleaning fan can drive the linkage plate and the fork-shaped cleaning frame to rotate synchronously under the action of wind at a high place.

[0004] The self-cleaning power insulator provided by the patent can cause a large amount of accumulated water to stay on the surface of the insulator when encountering extreme weather such as heavy rain. The stay of the accumulated water can form a conductive path, thereby damaging the insulating effect of the insulator. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides a waterproof power insulator to solve the problems raised in the background art.

[0006] To achieve the above-mentioned purposes, the present application is implemented by the following technical scheme: a waterproof power insulator, comprising an insulating disc, wherein the insulating disc comprises a main disc body, the main disc body is in the shape of an umbrella, a steel cap is fixedly connected to the top protruding part of the main disc body, the main disc body is made of electrical porcelain, and a shape-changing drainage module, a wind force scraping module and a gravity water throwing module are fixedly connected inside the main disc body.

[0007] The shape-changing drainage module comprises an elastic core rod, which is used to realize elastic deformation. The elastic core rod is sleeved in the inside of the main disc body. A drainage disc is sleeved on the surface of the elastic core rod, which is used to tighten and guide the accumulated water to drain out.

[0008] The wind force scraping module comprises a scraping wind wheel, which is rotationally connected to the surface of the elastic core rod and is used to scrape off the accumulated water.

[0009] The gravity water throwing module comprises a special-shaped core rod, and the main disc body is rotationally connected to the surface of the special-shaped core rod and is used to guide the installation of the insulating disc.

[0010] Preferably, the elastic core rod material is silicone rubber, the top and bottom of the elastic core rod are fixedly connected with thread clamping heads, the surface of the elastic core rod is sleeved with two insulating discs, the surface of the elastic core rod is rotatably connected with centrifugal wheels, the surface of the centrifugal wheels is fixedly connected with blades, the number of the centrifugal wheels is two, which are located at the top and bottom of the elastic core rod respectively, the surface of the elastic core rod is sleeved with rubber spacers, the surface of the elastic core rod is sleeved with drainage discs, the number of the drainage discs is two, which are located at the bottom of the two main disc bodies respectively.

[0011] Preferably, the number of the rubber spacers is four, the first rubber spacer is located at the bottom of the centrifugal wheel close to the top, the second rubber spacer is located at the top of the steel cap close to the top, the third rubber spacer is located at the bottom of the first drainage disc, and the fourth rubber spacer is located at the bottom of the second drainage disc and at the top of the second centrifugal wheel.

[0012] Preferably, the drainage disc comprises a sleeve, the top of the sleeve is fixedly connected with an elastic rubber pad, the sleeve is sleeved on the surface of the elastic core rod, the top of the sleeve is located at the bottom of the main disc body, the bottom of the sleeve is fixedly connected with a disc body, the cross section of the bottom of the disc body is isosceles triangle, the top of the disc body is fixedly connected with an elastic contact, the material of the elastic contact is silicone rubber, the left and right sides of the disc body are both communicated with drainage ports, and the drainage ports are inclined downward.

[0013] Preferably, the inside of the insulating disc is fixedly connected with an elastic core rod, the number of the insulating discs is two, one of which is close to the top of the elastic core rod, and the other of which is close to the bottom of the elastic core rod, the surface of the elastic core rod is sleeved with rubber spacers, the number of the rubber spacers is two, which are located at the top of the two steel caps respectively, and the top of the rubber spacer located at the bottom is fixedly connected with a hemispherical protrusion.

[0014] Preferably, the scraping wind wheel is located between the top main disc body and the bottom rubber spacer, the scraping wind wheel comprises a wheel body, the wheel body is rotatably connected on the surface of the elastic core rod, the inside of the wheel body is slidably connected with the surface of the elastic core rod, the top of the wheel body is fixedly connected with a top fixing ring, the bottom of the wheel body is fixedly connected with a bottom isolation ring, the right side of the wheel body is fixedly connected with an upward inclined blade, and the left side of the wheel body is fixedly connected with a downward inclined blade.

[0015] Preferably, the top of the top fixing ring is fixedly connected with a rubber contact, the bottom of the bottom isolation ring is fixedly connected with a rubber column, the rubber column at the bottom of the bottom isolation ring is in contact with the top of the rubber spacer, the top of the upward inclined blade is fixedly connected with an elastic sealing strip, the top of the elastic sealing strip is in contact with the bottom surface of the top main disc body, the bottom of the downward inclined blade is fixedly connected with an elastic sealing strip, and the bottom of the elastic sealing strip is in contact with the top surface of the bottom main disc body.

[0016] Preferably, the irregularly shaped mandrel includes a vertical rod, and a V-shaped bent rod is fixedly connected to the bottom of the vertical rod. There are two V-shaped bent rods, which are fixedly connected to each other by the vertical rod. The bottom of the V-shaped bent rod is fixedly connected to the vertical rod. Wire clamps are fixedly connected to both the top and bottom of the irregularly shaped mandrel. The cross-section of the V-shaped bent rod is a transverse V-shape. An insulating disc is rotatably connected to the top surface of the V-shaped bent rod through a bearing.

[0017] Preferably, an elastic support frame is fixedly connected to the surface of the vertical rod. The elastic support frame includes a stabilizing ring. The top of the stabilizing ring has a circular through hole. There are three stabilizing rings, which are fixedly connected to the surfaces of three vertical rods respectively. An elastic support rod is inserted into the bottom of the stabilizing ring. The elastic support rod is made of silicone rubber. There are three elastic support rods, which are evenly distributed at the bottom of the stabilizing ring. The surface of the elastic support frame is covered with a waterproof coating.

[0018] Preferably, a disk blade assembly is fixedly connected to the surface of the insulating disk. The disk blade assembly is made of polymer. The disk blade assembly includes a top blade sleeve. The top blade sleeve is fixedly connected to the outer surface of a steel cap. Two blades are fixedly connected to the surface of the top blade sleeve. A steel cap is fixedly connected to the bottom of the main disk. The number of steel caps is two and they are symmetrically distributed at the bottom of the main disk.

[0019] This invention provides a waterproof electrical insulator. It has the following advantages:

[0020] 1. This waterproof power insulator improves its waterproofness by incorporating an elastic core rod. The elastic deformation of the core rod causes the entire insulator to shake off accumulated water. A centrifugal wheel is also incorporated to assist in cleaning the water. The combination of the elastic core rod and the centrifugal wheel enhances the water-removal effect and improves the waterproof performance of the insulator.

[0021] 2. This waterproof power insulator features a drainage tray that collects and guides the drainage of water left at the bottom of the insulator, preventing water accumulation from affecting the insulator's insulation performance. The drainage tray, in conjunction with an elastic core rod, utilizes elastic deformation to allow the bottom of the tray to contact the elastic contact, promoting the removal of water droplets adhering to the bottom of the insulator and further improving the insulator's waterproofness.

[0022] 3. This type of waterproof power insulator uses a scraping impeller to remove moisture from the bottom of the upper disc and the top of the lower disc, preventing moisture from remaining on the insulator surface for a long time and improving the insulator's waterproofness. The scraping impeller, in conjunction with the elastic core rod, allows for a tighter contact between the scraping impeller and the insulating disc, further enhancing the insulator's water removal capacity.

[0023] 4. The waterproof power insulator, through the setting of the special-shaped core rod, cooperates the insulating disc, installs the insulating disc obliquely, promotes the water on the surface of the insulating disc to separate from the insulating disc, improves the waterproofness of the insulating disc, realizes the rotation of the insulating disc through the insulating disc cooperating the disc body blade group, improves the drainage performance of the insulating disc, utilizes the special-shaped core rod to cooperate the elastic support frame, utilizes the elastic deformation to further improve the drainage performance of the insulating disc. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is whole structure front view schematic diagram of first kind of scheme of the application;

[0025] Figure 2 It is whole structure bottom view schematic diagram of first kind of scheme of the application;

[0026] Figure 3 It is whole structure schematic diagram of drainage disc of the application;

[0027] Figure 4 It is whole structure top view schematic diagram of second kind of scheme of the application;

[0028] Figure 5 It is whole structure front view schematic diagram of second kind of scheme of the application;

[0029] Figure 6 It is whole structure schematic diagram of scraping wind wheel of the application;

[0030] Figure 7 It is the structure enlarged schematic diagram of A in the application; Figure 5

[0031] Figure 8 It is whole structure schematic diagram of third kind of scheme of the application;

[0032] Figure 9 It is the schematic diagram of special-shaped core rod and insulating disc position relation of the application.

[0033] In the drawing: 1, insulating disc;11, main disc body;12, steel cap;2, elastic core rod;3, centrifugal wheel;4, rubber spacer;5, drainage disc;51, sleeve;52, disc body;53, elastic contact;54, drainage port;6, scraping wind wheel;61, wheel body;62, top fixed ring;63, bottom isolation ring;64, upward inclined blade;65, downward inclined blade;7, elastic support frame;71, stabilizing ring;72, elastic support rod;8, special-shaped core rod;81, vertical rod;82, V-shaped bent rod;9, disc body blade group;91, top blade sleeve;92, bottom blade. DETAILED DESCRIPTION

[0034] ​The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application.

[0035] Examples of the described embodiments are shown in the drawings, in which the same or similar notations are used to denote the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as limiting the present application. Embodiment one

[0036] Please refer to Figures 1-3 The present application provides a technical solution: a waterproof power insulator, comprising an insulating disc 1, the insulating disc 1 comprising a main disc body 11, the main disc body 11 being umbrella-shaped, a steel cap 12 being fixedly connected to the top protruding part of the main disc body 11, the main disc body 11 being made of electrical porcelain, and a deformation drainage module being fixedly connected inside the main disc body 11.

[0037] The deformation drainage module comprises an elastic core rod 2 for realizing elastic deformation, the elastic core rod 2 being sleeved inside the main disc body 11 for tightening and guiding the drainage of accumulated water, the elastic core rod 2 being made of silicone rubber, wire clamps being fixedly connected to the top and bottom of the elastic core rod 2, two insulating discs 1 being sleeved on the surface of the elastic core rod 2, a centrifugal wheel 3 being rotatably connected to the surface of the elastic core rod 2, blades being fixedly connected to the surface of the centrifugal wheel 3, the number of the centrifugal wheels 3 being two, which are respectively located at the top and bottom of the elastic core rod 2, four rubber spacers 4 being sleeved on the surface of the elastic core rod 2, the first rubber spacer 4 being located at the bottom of the centrifugal wheel 3 close to the top, the second rubber spacer 4 being located at the top of the steel cap 12 close to the top, the third rubber spacer 4 being located at the bottom of the first drainage disc 5, and the fourth rubber spacer 4 being located at the bottom of the second drainage disc 5 and at the top of the second centrifugal wheel 3.

[0038] The surface of the elastic core rod 2 is sleeved with a drainage disc 5, the number of the drainage discs 5 being two, which are respectively located at the bottom of the two main disc bodies 11, the drainage disc 5 comprising a sleeve pipe 51, the top of the sleeve pipe 51 being fixedly connected with an elastic rubber pad, the sleeve pipe 51 being sleeved on the surface of the elastic core rod 2, the top of the sleeve pipe 51 being located at the bottom of the main disc body 11, the bottom of the sleeve pipe 51 being fixedly connected with a disc body 52, the cross section of the bottom of the disc body 52 being isosceles triangle, an elastic contact 53 being fixedly connected to the top of the disc body 52, the elastic contact 53 being made of silicone rubber, drainage openings 54 being communicated with the left and right sides of the disc body 52, and the drainage openings 54 being inclined downward.

[0039] In use, the wire clamps at both ends of the insulator are fixed on the tower and the cable surface respectively, and the insulator is kept vertical. In the use process, when extreme weather such as heavy rain occurs, the cable will swing, and the cable will drive the insulator to swing. In the swinging process, the elastic core rod 2 will be elastically deformed, and then slightly bent. Through the bending of different angles, the bottom of the main disc body 11 is in contact with the top of the elastic contact 53, the top of the elastic contact 53 scrapes the bottom of the main disc body 11, and the water adhering to the bottom of the elastic contact 53 is guided to the surface of the elastic contact 53, and then slides into the surface of the disc body 52 through the elastic contact 53, and finally is discharged along the drain 54 under the action of gravity. At the same time, due to the elastic deformation of the elastic core rod 2, the sleeve 51 is in contact with the bottom of the main disc body 11, so that the sealing property of the bottom of the main disc body 11 and the top of the sleeve 51 is improved. Part of the water sliding along the bottom of the main disc body 11 slides to the inside of the disc body 52 through the sleeve 51, and finally slides out of the drain 54, thereby preventing the water from staying on the surface of the insulator for a long time to form a conductive path.

[0040] In this process, the centrifugal wheel 3 rotates under the influence of extreme weather wind force. Since the centrifugal wheel 3 is eccentrically installed, its rotation will produce vibration. When the vibration is transmitted to the surface of the insulator, it will promote the water adhering to the insulator disc 1 to separate, thereby promoting the drainage process of the drainage disc 5. Embodiment two

[0041] Please refer to Figures 4-7 The second technical scheme of the application is provided: a waterproof power insulator, comprising an insulator disc 1, the insulator disc 1 comprising a main disc body 11, the main disc body 11 being umbrella-shaped, the top of the main disc body 11 being fixedly connected with a steel cap 12, the material of the main disc body 11 being electrotechnical ceramic, the inside of the main disc body 11 being fixedly connected with a wind force scraping module, the inside of the insulator disc 1 being fixedly connected with an elastic core rod 2, the number of the insulator discs 1 being two, one being close to the top of the elastic core rod 2 and the other being close to the bottom of the elastic core rod 2, the surface of the elastic core rod 2 being sleeved with a rubber spacer 4, the number of the rubber spacers 4 being two and being located at the top of the two steel caps 12 respectively, and the top of the rubber spacer 4 located at the bottom being fixedly connected with a hemispherical lug;

[0042] The wind force scraping module comprises a scraping wind wheel 6 which is rotationally connected to the surface of the elastic core rod 2 and is used for scraping the adhered accumulated water. The scraping wind wheel 6 is located between the top main disc body 11 and the bottom rubber isolation sleeve 4. The scraping wind wheel 6 comprises a wheel body 61 which is rotationally connected to the surface of the elastic core rod 2 and is slidingly connected to the surface of the elastic core rod 2 inside. The top of the wheel body 61 is fixedly connected with a top fixed ring 62. The top of the top fixed ring 62 is fixedly connected with a rubber contact. The bottom of the wheel body 61 is fixedly connected with a bottom isolation ring 63. The bottom of the bottom isolation ring 63 is fixedly connected with a rubber column. The rubber column at the bottom of the bottom isolation ring 63 is in contact with the top of the rubber isolation sleeve 4. The right side of the wheel body 61 is fixedly connected with an upward inclined blade 64. The top of the upward inclined blade 64 is fixedly connected with an elastic sealing strip. The top of the elastic sealing strip is in contact with the bottom surface of the top main disc body 11. The left side of the wheel body 61 is fixedly connected with a downward inclined blade 65. The bottom of the downward inclined blade 65 is fixedly connected with an elastic sealing strip. The bottom of the elastic sealing strip is in contact with the top surface of the bottom main disc body 11.

[0043] In use, under the action of wind force in extreme weather, the upward inclined blade 64 and the downward inclined blade 65 drive the wheel body 61 to rotate under the action of wind force. At the same time, the elastic sealing strips of the upward inclined blade 64 and the downward inclined blade 65 scrape the adhered accumulated water on the top main disc body 11 and the accumulated water on the surface of the bottom main disc body 11 which falls from the top main disc body 11.

[0044] In this process, the elastic core rod 2 will be elastically deformed under the combined action of the cable, the tower and external environmental factors. Therefore, the elastic sealing strips of the upward inclined blade 64 and the downward inclined blade 65 are more closely attached to the main disc body 11, and the scraping effect on the accumulated water is further improved.

[0045] During the rotation of the scraping wind wheel 6, the rubber column at the bottom of the bottom isolation ring 63 will drive the entire scraping wind wheel 6 to slide upward when passing through the semispherical protrusion at the top of the rubber isolation sleeve 4. The rubber contact at the top of the top fixed ring 62 will impact the top main disc body 11. Periodic impact will apply vibration to the main disc body 11. At the same time, the scraping wind wheel 6 will fall and apply vibration to the bottom main disc body 11, promoting the flow and falling of the accumulated water adhered to the surface of the insulating disc 1. Embodiment three

[0046] Please refer to Figures 8-9 The third technical scheme of the present application provides a waterproof power insulator, which comprises an insulating disc 1. The insulating disc 1 comprises a main disc body 11. The main disc body 11 is umbrella-shaped. A steel cap 12 is fixedly connected to the top protruding part of the main disc body 11. The main disc body 11 is made of electrical porcelain. A gravity water throwing module is fixedly connected inside the main disc body 11.

[0047] The gravity water throwing module comprises a special-shaped mandrel 8, the surface of the special-shaped mandrel 8 is covered with rubber, the special-shaped mandrel 8 is internally made of glass fiber reinforced plastic, a main disc body 11 is rotationally connected to the surface of the special-shaped mandrel 8 and is used for guiding the installation of the insulating disc 1, the special-shaped mandrel 8 comprises a vertical rod 81, the bottom of the vertical rod 81 is fixedly connected with V-shaped bent rods 82, the number of the V-shaped bent rods 82 is two, the two V-shaped bent rods 82 are fixedly connected through the vertical rod 81, the bottom of each V-shaped bent rod 82 is fixedly connected with a vertical rod 81, the top and the bottom of the special-shaped mandrel 8 are fixedly connected with wire clamps, the cross section of the V-shaped bent rod 82 is a horizontally arranged V shape, the top surface of the V-shaped bent rod 82 is rotationally connected with the insulating disc 1 through a bearing, and the top and the bottom of the insulating disc 1 are fixedly connected with rubber sealing rings;

[0048] The surface of the insulating disc 1 is fixedly connected with a disc body blade set 9, the disc body blade set 9 is made of polymer, the disc body blade set 9 comprises a top blade sleeve 91, the inside of the top blade sleeve 91 is fixedly connected to the outer surface of a steel cap 12, the surface of the top blade sleeve 91 is fixedly connected with two blades, the bottom of the main disc body 11 is fixedly connected with the steel cap 12, the number of the steel cap 12 is two and the steel cap 12 is symmetrically distributed at the bottom of the main disc body 11;

[0049] The surface of the vertical rod 81 is fixedly connected with an elastic support frame 7, the elastic support frame 7 comprises a stabilizing ring 71, a circular through hole is formed in the top of the stabilizing ring 71, the number of the stabilizing ring 71 is three and the stabilizing ring 71 is fixedly connected to the surface of each vertical rod 81, the bottom of the stabilizing ring 71 is inserted with elastic support rods 72, the material of the elastic support rods 72 is silicone rubber, the number of the elastic support rods 72 is three and the elastic support rods 72 are uniformly distributed at the bottom of the stabilizing ring 71, and the surface of the elastic support frame 7 is covered with a waterproof coating.

[0050] In use, under the action of external extreme weather wind, the wind blows the blades of the top blade sleeve 91 and the bottom blade 92, and then drives the insulating disc 1 to rotate, after the rotation of the insulating disc 1, the water adhered to the surface of the insulating disc 1 is thrown out of the surface of the insulating disc 1, at the same time, due to the inclined placement of the insulating disc 1, the accumulated water on the surface of the insulating disc 1 flows out of the insulator along the inclined direction of the insulating disc 1 under the action of gravity, and due to the inclined placement of the insulating disc 1, more winds in different directions can be used to drive the insulating disc 1 to rotate;

[0051] During the rotation of the insulating disc 1, the special-shaped mandrel 8 will be subjected to a deflection torque, the torque is transmitted to the elastic support rods 72 through the stabilizing ring 71, the elastic support rods 72 are elastically deformed, and then the special-shaped mandrel 8 is supported and protected, so as to prevent the special-shaped mandrel 8 from being excessively deformed and damaged or even broken.

[0052] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A waterproof electrical insulator, comprising an insulating disc (1), characterized in that: The insulating disk (1) includes a main disk body (11), which is umbrella-shaped. A steel cap (12) is fixedly connected to the protruding part at the top of the main disk body (11). The main disk body (11) is made of electrical ceramic. A deformation drainage module is fixedly connected inside the main disk body (11). The deformation drainage module includes an elastic core rod (2) for achieving elastic deformation. The elastic core rod (2) is sleeved inside the main disc body (11). A drainage disc (5) is sleeved on the surface of the elastic core rod (2) for tightening and guiding the accumulated water out. The elastic core rod (2) is made of silicone rubber. The top and bottom of the elastic core rod (2) are fixedly connected with wire clamps. Two insulating discs (1) are sleeved on the surface of the elastic core rod (2). Centrifugal wheels (3) are rotatably connected to the surface of the elastic core rod (2). Blades are fixedly connected to the surface of the centrifugal wheels (3). There are two centrifugal wheels (3), which are located at the top and bottom of the elastic core rod (2) respectively. A rubber spacer (4) is sleeved on the surface of the elastic core rod (2). A drainage disc (5) is sleeved on the surface of the elastic core rod (2). There are two drainage discs (5), which are located at the bottom of the two main disc bodies (11) respectively. The number of rubber sleeves (4) is four. The first rubber sleeve (4) is located at the bottom of the centrifugal wheel (3) near the top, the second rubber sleeve (4) is located at the top of the steel cap (12) near the top, the third rubber sleeve (4) is located at the bottom of the first drain plate (5), and the fourth rubber sleeve (4) is located at the bottom of the second drain plate (5) and at the top of the second centrifugal wheel (3). The drain pan (5) includes a sleeve (51), the top of which is fixedly connected to an elastic rubber pad. The sleeve (51) is fitted onto the surface of the elastic core rod (2). The top of the sleeve (51) is located at the bottom of the main pan body (11). The bottom of the sleeve (51) is fixedly connected to a pan body (52). The bottom cross-section of the pan body (52) is an isosceles triangle. The top of the pan body (52) is fixedly connected to an elastic contact (53). The elastic contact (53) is made of silicone. The left and right sides of the pan body (52) are connected to drain ports (54). The drain ports (54) are inclined downwards.

Citation Information

Patent Citations

  • Self-cleaning electric power insulator

    CN118507177A

  • Insulator assembly convenient to clean

    CN119132760A

  • Extra-high voltage composite insulator

    CN212461276U