Anti-windage yaw composite insulator

Abstract

The utility model provides an anti-windage yaw composite insulator, which comprises a core rod and two groups of hanging assemblies, and umbrella skirts are arranged on the peripheral wall of the core rod; the two hanging assemblies are arranged at the two ends of the core rod respectively, each hanging assembly comprises a hanging ball arranged at the end of the core rod and a hanging piece arranged on the periphery of the hanging ball in a sleeving mode, the hanging balls are rotationally connected with the hanging pieces, and hanging rings used for being connected with hardware fittings are arranged on the hanging pieces. According to the anti-windage yaw composite insulator provided by the utility model, the composite insulator can swing flexibly in strong wind, and breakage caused by rigid pulling is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of composite insulator technology, and more specifically, it relates to a wind-resistant composite insulator. Background Technology

[0002] In the early days, insulators were mostly used on utility poles. Gradually, they evolved to include disc-shaped insulators hanging at one end of high-voltage power line towers to increase creepage distance. These insulators were usually made of glass or ceramic and were called insulators. With technological advancements, composite insulators have also emerged, consisting of a glass fiber resin core rod (or core tube), a protective sleeve made of organic materials, and skirts.

[0003] In the existing technology, composite insulators are mostly integral rigid structures with both ends connected to hardware. During use, they are often blown by the wind and subjected to combined dynamic loads such as tension, torsion, and bending. In severe cases, the composite insulators may break brittlely. Utility Model Content

[0004] This utility model provides a wind-resistant composite insulator that allows the composite insulator to swing flexibly in strong winds, avoiding breakage caused by rigid pulling.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a wind-resistant composite insulator is provided, including a core rod and two sets of suspension assemblies. The outer peripheral wall of the core rod is provided with a skirt. The two sets of suspension assemblies are respectively arranged at both ends of the core rod. The suspension assembly includes a suspension ball arranged at the end of the core rod and a suspension member sleeved on the outer periphery of the suspension ball. The suspension ball and the suspension member are rotatably connected. The suspension member is provided with a lifting ring for connecting with hardware.

[0006] In one possible implementation, the suspension component includes a suspension ring and a connecting plate. The suspension ring is sleeved on the outer periphery of the suspension ball and rotatably connected to the suspension ball. Two extension plates extending in a direction away from the suspension ring are connected to the side of the suspension ring away from the mandrel. The two extension plates are symmetrically arranged on both sides of the suspension ball, and the extension ends of the two extension plates are connected to wing plates extending in opposite directions. The connecting plate is connected to the two wing plates through a connector, and the suspension ring is located on the side of the connecting plate away from the mandrel.

[0007] In some embodiments, the connector includes a bolt passing through the connecting plate and the wing plate, and a nut threaded onto the bolt.

[0008] In some embodiments, a limiting member extending radially toward the mandrel is connected to the outer peripheral wall of the hanging ball, and a limiting groove extending axially to the end of the mandrel and used to accommodate the limiting member is provided on the outer peripheral wall of the mandrel, and a sealing member for sealing the side opening of the limiting groove is slidably sleeved on the outer periphery of the mandrel.

[0009] In some embodiments, the limiting member is a limiting rod connected to the outer peripheral wall of the hanging ball, the outer end of the limiting rod has a limiting platform protruding outward, and the limiting groove is adapted to the limiting member.

[0010] In some embodiments, the sealing element includes an elastic element and a sealing sleeve. The elastic element is sleeved on the outer periphery of the mandrel and located on the side of the limiting groove near the umbrella skirt. The end of the elastic element near the umbrella skirt is connected to the mandrel. The sealing sleeve is slidably sleeved on the outer periphery of the mandrel and connected to the end of the elastic element away from the umbrella skirt. The elastic element can elastically push the sealing sleeve to seal the side opening of the limiting groove.

[0011] In some embodiments, the outer peripheral wall of the mandrel is provided with a mounting platform that protrudes outward, the mounting platform is located between the umbrella skirt and the elastic element, and the elastic element is connected to the end face of the mounting platform.

[0012] In some embodiments, a rubber plug for sealing the side opening of the limiting groove is provided in the limiting groove, and the rubber plug is located inside the sealing member.

[0013] Compared with the prior art, the wind-resistant composite insulator provided in this embodiment can withstand combined dynamic loads such as tension, torsion, and bending under the action of the hardware at both ends when encountering strong winds. The hanging ball can rotate flexibly at various angles within the hanging component, allowing the composite insulator to swing flexibly in strong winds and avoiding breakage caused by rigid pulling. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of the wind-resistant composite insulator provided in an embodiment of the present utility model;

[0016] Figure 2 This is an embodiment of the present utility model. Figure 1 A magnified schematic diagram of the local structure at point I;

[0017] Figure 3 A schematic diagram of the disassembly structure of the wind-resistant composite insulator with a skirt and one set of hanging components provided in this embodiment of the utility model.

[0018] The following are the labeling elements in the figure:

[0019] 10. Core rod; 11. Umbrella skirt; 12. Limiting groove; 13. Mounting platform; 20. Hanging assembly; 21. Hanging ball; 22. Hanging component; 221. Hanging ring; 222. Extension plate; 223. Wing plate; 224. Connecting plate; 225. Hanging ring; 30. Connector; 31. Bolt; 32. Nut; 40. Limiting component; 41. Limiting rod; 42. Limiting platform; 50. Sealing component; 51. Elastic component; 52. Sealing sleeve; 60. Rubber plug. Detailed Implementation

[0020] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or indirectly on the other element. It should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a number" means two or more, unless otherwise explicitly specified.

[0022] In the early days, insulators were mostly used on utility poles. Gradually, they evolved to include disc-shaped insulators hanging at one end of high-voltage power line towers to increase creepage distance. These insulators were usually made of glass or ceramic and were called insulators. With technological advancements, composite insulators have also emerged, consisting of a glass fiber resin core rod (or core tube), a protective sleeve made of organic materials, and skirts.

[0023] In the existing technology, composite insulators are mostly integral rigid structures with both ends connected to hardware. During use, they are often blown by the wind. Under the action of the two ends of the composite insulator, the composite insulator is subjected to composite dynamic loads such as tension, torsion, and bending. In severe cases, the composite insulator may break brittlely.

[0024] Please see Figures 1 to 3The wind-resistant composite insulator provided by this utility model will now be described. The wind-resistant composite insulator includes a core rod 10 and two sets of suspension assemblies 20. The outer peripheral wall of the core rod 10 is provided with a skirt 11. The two sets of suspension assemblies 20 are respectively disposed at both ends of the core rod 10. The suspension assembly 20 includes a suspension ball 21 disposed at the end of the core rod 10 and a suspension member 22 sleeved on the outer periphery of the suspension ball 21. The suspension ball 21 and the suspension member 22 are rotatably connected. The suspension member 22 is provided with a lifting ring 225 for connecting with hardware.

[0025] Furthermore, regarding the hanging assembly 20 at the upper end of the mandrel 10, the hanging member 22 is sleeved on the lower outer periphery of the hanging ball 21, which not only prevents the hanging ball 21 from detaching from the hanging member 22, but also allows the hanging ball 21 to rotate relative to the hanging member 22 at various angles.

[0026] This application provides a wind-resistant composite insulator. In actual use, when encountering strong winds, the composite insulator is subjected to combined dynamic loads such as tension, torsion, and bending under the action of the fittings at both ends. The hanging ball 21 rotates flexibly at various angles within the hanging component 22, allowing the composite insulator to swing flexibly in strong winds and avoiding breakage caused by rigid pulling.

[0027] Compared with the prior art, the wind-resistant composite insulator provided in this embodiment can withstand combined dynamic loads such as tension, torsion, and bending under the action of the hardware at both ends when encountering strong winds. The hanging ball 21 can rotate flexibly at various angles within the hanging component 22, allowing the composite insulator to swing flexibly in strong winds and avoiding breakage caused by rigid pulling.

[0028] In one possible implementation, the aforementioned hanging component 22 adopts the following... Figures 1 to 3 The structure shown is described in the following document. Figures 1 to 3 The hanging component 22 includes a hanging ring 221 and a connecting plate 224. The hanging ring 221 is sleeved on the outer periphery of the hanging ball 21 and is rotatably connected to the hanging ball 21. Two extension plates 222 extending in a direction away from the hanging ring 221 are connected to the side of the hanging ring 221 away from the core rod 10. The two extension plates 222 are symmetrically arranged on both sides of the hanging ball 21. The extension ends of the two extension plates 222 are connected to the wing plates 223 extending in opposite directions. The connecting plate 224 is connected to the two wing plates 223 through the connector 30. The hanging ring 225 is located on the side of the connecting plate 224 away from the core rod 10.

[0029] Specifically, the length of the connecting plate 224 is greater than the diameter of the hanging ball 21, creating a gap between the connecting plate 224 and the hanging ring 221 to accommodate the hanging ball 21, thus avoiding interference with the rotation of the hanging ball 21. Furthermore, the aperture of the hanging ring 221 is smaller than the maximum diameter of the hanging ball 21, which not only prevents the hanging ball 21 from detaching from the hanging ring 221 but also allows the hanging ball 21 to rotate relative to the hanging ring 221 at various angles.

[0030] Optionally, the connector 30 includes a bolt 31 that passes through the connecting plate 224 and the wing plate 223, and a nut 32 threaded onto the bolt 31.

[0031] Optionally, the connector 30 is a pin that passes through the connecting plate 224 and the wing plate 223.

[0032] In some embodiments, see Figures 1 to 3 The connector 30 includes a bolt 31 that passes through the connecting plate 224 and the wing plate 223, and a nut 32 that is threaded onto the bolt 31.

[0033] Specifically, the bolt 31 and nut 32 connection method facilitates quick on-site installation or replacement of components (hanging ball 21 or lifting ring 225) without the need for special tools; mechanical fastening is more controllable than welding, reduces process errors, and is less prone to loosening with long-term use.

[0034] In some embodiments, see Figures 1 to 3 The outer peripheral wall of the hanging ball 21 is connected to a limiting member 40 that extends radially toward the core rod 10. The outer peripheral wall of the core rod 10 is provided with a limiting groove 12 that extends axially to the end of the core rod 10 and is used to accommodate the limiting member 40. The outer peripheral wall of the core rod 10 is slidably fitted with a sealing member 50 for sealing the side opening of the limiting groove 12.

[0035] Specifically, the limiting member 40 can enter from the side opening of the limiting groove 12. Through the limiting cooperation between the limiting groove 12 and the limiting member 40, the limiting member 40 is prevented from separating from the limiting groove 12 along the axial direction of the mandrel 10. In addition, the sealing member 50 blocks the side opening of the limiting groove 12, preventing the limiting member 40 from detaching from the limiting groove 12. This not only facilitates the quick installation and disassembly of the limiting member 40 and the mandrel 10, but also improves the connection stability between the limiting member 40 and the mandrel 10 by blocking the side opening of the limiting groove 12.

[0036] In some embodiments, see Figures 1 to 3 The limiting member 40 is a limiting rod 41 connected to the outer peripheral wall of the hanging ball 21. The outer end of the limiting rod 41 has a limiting platform 42 protruding outward. The limiting groove 12 is adapted to the limiting member 40.

[0037] Specifically, the limiting groove 12 includes a first slot for accommodating the limiting platform 42 and a second slot for accommodating the limiting rod 41. The second slot is located on the side of the first slot away from the umbrella skirt 11 and is connected to the first slot. The second slot extends to the end of the core rod 10. The diameter of the first slot is larger than the diameter of the second slot. Therefore, the limiting of the limiting platform 42 by the first slot can restrict the axial separation of the limiting platform 42 from the core rod 10, thereby improving the stability of the connection.

[0038] In some embodiments, see Figures 1 to 3The sealing component 50 includes an elastic element 51 and a sealing sleeve 52. The elastic element 51 is sleeved on the outer periphery of the core rod 10 and located on the side of the limiting groove 12 near the umbrella skirt 11. The end of the elastic element 51 near the umbrella skirt 11 is connected to the core rod 10. The sealing sleeve 52 is slidably sleeved on the outer periphery of the core rod 10 and connected to the end of the elastic element 51 away from the umbrella skirt 11. The elastic element 51 can elastically push the sealing sleeve 52 to seal the side opening of the limiting groove 12.

[0039] Specifically, the elastic element 51 (such as a spring) automatically pushes the sealing sleeve 52 to close the limiting groove 12 without manual adjustment, dynamically adapting to temperature changes or mechanical vibrations; the elastic buffer reduces metal fatigue and extends service life.

[0040] When the limiting member 40 needs to be installed, push the sealing sleeve 52 to compress the elastic member 51 so that it avoids the limiting groove 12, and insert the limiting member 40 from the side opening of the limiting groove 12. Loosen the sealing sleeve 52, and under the push of the elastic member 51, the sealing sleeve 52 re-seals the side opening of the limiting groove 12, which improves the convenience of use.

[0041] In some embodiments, see Figures 1 to 3 The outer peripheral wall of the core rod 10 is provided with a mounting platform 13 that protrudes outward. The mounting platform 13 is located between the umbrella skirt 11 and the elastic member 51, and the elastic member 51 is connected to the end face of the mounting platform 13.

[0042] Specifically, the mounting platform 13 provides a fixed support point for the elastic element 51 to ensure accurate elastic force direction; and the mandrel 10 provides a guiding function for the elastic element 51 to avoid bending during compression and improve practicality.

[0043] In some embodiments, see Figures 1 to 3 The limiting groove 12 is provided with a rubber plug 60 for sealing the side opening of the limiting groove 12, and the rubber plug 60 is located inside the sealing member 50.

[0044] Specifically, the rubber plug 60 is configured to abut against the limiting member 40 and the sealing member 50 (the inner peripheral wall of the sealing sleeve 52) to limit the horizontal displacement of the limiting member 40 and improve the stability of the limiting member 40 in the limiting groove 12.

[0045] In summary, the diameter of the hanging ring 221 is larger than the outer diameter of the limiting platform 42. By disassembling the bolts 31 and nuts 32, the connecting plate 224 and the wing plate 223 can be separated, and the limiting member 40 and the core rod 10 can be separated. The hanging ball 21, the limiting rod 41 and the limiting platform 42 can be pulled away from the side of the hanging ring 221 away from the core rod 10, which improves the convenience of disassembly and installation.

[0046] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wind-resistant composite insulator, characterized in that, include: The core rod has an umbrella-shaped skirt on its outer perimeter wall; and Two sets of hanging components are respectively disposed at both ends of the mandrel. Each hanging component includes a hanging ball disposed at the end of the mandrel and a hanging member sleeved on the outer periphery of the hanging ball. The hanging ball and the hanging member are rotatably connected. The hanging member is provided with a hanging ring for connecting with hardware.

2. The wind-resistant composite insulator as described in claim 1, characterized in that, The hanging components include: A hanging ring, sleeved on the outer periphery of the hanging ball and rotatably connected to the hanging ball, has two extension plates extending away from the hanging ring connected to the side of the hanging ring away from the core rod. The two extension plates are symmetrically arranged on both sides of the hanging ball, and the extended ends of the two extension plates are connected to wing plates extending in opposite directions; and A connecting plate is connected to the two wing plates via a connector, and the lifting ring is located on the side of the connecting plate away from the mandrel.

3. The wind-resistant composite insulator as described in claim 2, characterized in that, The connector includes a bolt passing through the connecting plate and the wing plate, and a nut threaded onto the bolt.

4. The wind-resistant composite insulator as described in claim 2, characterized in that, The outer peripheral wall of the hanging ball is connected to a limiting member that extends radially toward the core rod. The outer peripheral wall of the core rod is provided with a limiting groove that extends axially to the end of the core rod and is used to accommodate the limiting member. A sealing member for sealing the side opening of the limiting groove is slidably sleeved on the outer periphery of the core rod.

5. The wind-resistant composite insulator as described in claim 4, characterized in that, The limiting component is a limiting rod connected to the outer peripheral wall of the hanging ball. The outer end of the limiting rod has a limiting platform protruding outward. The limiting groove is adapted to the limiting component.

6. The wind-resistant composite insulator as described in claim 4, characterized in that, The sealing component includes: An elastic element is sleeved on the outer periphery of the core rod and located on the side of the limiting groove near the umbrella skirt; the end of the elastic element near the umbrella skirt is connected to the core rod; and The sealing sleeve is slidably sleeved on the outer periphery of the mandrel and connected to the end of the elastic member away from the umbrella skirt. The elastic member can elastically push the sealing sleeve to seal the side opening of the limiting groove.

7. The wind-resistant composite insulator as described in claim 6, characterized in that, The outer peripheral wall of the core rod is provided with a mounting platform that protrudes outward. The mounting platform is located between the umbrella skirt and the elastic member, and the elastic member is connected to the end face of the mounting platform.

8. The wind-resistant composite insulator as described in claim 4, characterized in that, The limiting groove is provided with a rubber plug for sealing the side opening of the limiting groove, and the rubber plug is located inside the sealing member.

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