Suspension porcelain insulator with umbrella skirt reinforcing ring

Abstract

The utility model provides a suspension porcelain insulator with umbrella skirt reinforcing ring, which comprises a porcelain insulator and upper and lower connecting fittings arranged at both ends of the porcelain insulator respectively, a plurality of umbrella skirts are arranged on the porcelain insulator along the axial direction at intervals, reinforcing rings are arranged between adjacent two umbrella skirts, the inner ring of the reinforcing ring is fixedly connected with the outer wall of the porcelain insulator, and the upper and lower end faces of the reinforcing ring are fixedly connected with the opposite side faces of the adjacent two umbrella skirts respectively; and the connecting surfaces of the reinforcing ring and the umbrella skirts are provided with arc transition portions.

Description

Technical Field

[0001] This utility model relates to the field of power equipment technology, specifically to a suspension porcelain insulator with a shed-skirt reinforcing ring. Background Technology

[0002] Suspension porcelain insulators are commonly used insulating components in power systems, primarily used to suspend conductors and provide insulation. Existing suspension porcelain insulators typically consist of a porcelain insulator and connecting hardware at both ends. Multiple sheds are installed on the porcelain insulator to increase creepage distance and improve insulation performance.

[0003] However, in actual use, due to the relatively weak structural strength of the connection between the shed and the porcelain insulator, the shed is prone to breakage and detachment when subjected to external impacts (such as wind causing conductor swaying, collisions with foreign objects, etc.) or long-term bending stress, affecting the normal use of the insulator and potentially leading to power accidents. Furthermore, existing suspension porcelain insulators need improvement in sealing performance, drainage and anti-fouling properties, and heat dissipation. Moisture and dirt easily adhere to or penetrate, causing component corrosion and shortening the insulator's service life.

[0004] Therefore, we proposed a suspension porcelain insulator with a skirted reinforcing ring to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide a suspension porcelain insulator with a skirted reinforcing ring to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a suspension porcelain insulator with shed reinforcing rings, comprising a porcelain insulator and upper and lower connecting fittings respectively disposed at both ends of the porcelain insulator. Multiple sheds are spaced apart along the axial direction of the porcelain insulator, and a reinforcing ring is disposed between adjacent sheds. The inner ring of the reinforcing ring is fixedly connected to the outer wall of the porcelain insulator, and the upper and lower end faces of the reinforcing ring are fixedly connected to the opposite sides of the two adjacent sheds, respectively. The connection surface between the reinforcing ring and the shed is configured as an arc-shaped transition portion.

[0007] Preferably, the reinforcing ring is made of ceramic and is integrally formed with the ceramic insulator and the umbrella skirt; the upper surface of the umbrella skirt is provided with spiral guiding protrusions.

[0008] Preferably, the outer diameter of the reinforcing ring is smaller than the outer diameter of the umbrella skirt, the cross-section of the reinforcing ring is trapezoidal, and its outer wall is inclined outward.

[0009] Preferably, the inner wall of the reinforcing ring is uniformly distributed with annular reinforcing ribs, and the annular reinforcing ribs are fixedly connected to the outer wall of the ceramic insulator.

[0010] Preferably, a plurality of heat dissipation protrusions are uniformly provided on the outer wall of the reinforcing ring. The heat dissipation protrusions extend along the axial direction of the reinforcing ring and are connected to the end of the spiral guide protrusions on the upper surface of the umbrella skirt.

[0011] Preferably, the connection points of the upper and lower connecting hardware with the ceramic insulator are each provided with a protective component. The protective component includes a first metal protective half-ring, a second metal protective half-ring, a hinge, a fixing connector, a bolt, a nut, and a sealing gasket. The first and second metal protective half-rings are connected by a hinge. Both the first and second metal protective half-rings are provided with fixing connectors, and the fixing connectors are fixed together by bolts and nuts. Sealing gaskets are attached to the inner sides of both the first and second metal protective half-rings. The sealing gaskets are pressed and bonded to the connection points of the upper and lower connecting hardware with the ceramic insulator by the first and second metal protective half-rings.

[0012] Compared with the prior art, the beneficial effects of this utility model are: (1) By setting a reinforcing ring between adjacent skirts and using an arc-shaped transition part to connect the reinforcing ring and the skirt, the present invention effectively disperses stress, significantly improves the structural strength of the connection between the skirt and the porcelain insulator, enhances the overall impact resistance and bending resistance of the insulator, reduces the occurrence of problems such as skirt breakage and detachment, and extends the service life of the insulator. (2) The reinforcing ring is made of ceramic material and is integrally formed with the ceramic insulator and the umbrella skirt, which ensures the firmness of the connection and the consistency of the overall performance. At the same time, the ceramic material has excellent insulation performance and corrosion resistance, and will not have an adverse effect on the normal insulation function of the insulator. The annular reinforcing ribs on the inner wall of the reinforcing ring further enhance the connection strength and deformation resistance. (3) The spiral guiding protrusions on the umbrella skirt and the heat dissipation protrusions on the reinforcing ring that are connected to the guiding groove optimize the drainage performance, reduce the retention of rainwater on the surface of the umbrella skirt, reduce the possibility of stains adhering, and improve the heat dissipation effect, which is conducive to maintaining the insulation performance of the insulator in a high-temperature environment. (4) The design of the reinforcing ring having an outer diameter smaller than that of the umbrella skirt and a trapezoidal cross-section avoids the impact on the creepage distance of the umbrella skirt, ensures the insulation performance of the insulator, and enhances its own structural strength and drainage and anti-pollution capabilities. (5) The sealing gasket and metal protective ring at the connection between the fitting and the porcelain insulator improve the sealing performance of the insulator, prevent corrosion of the metal parts, protect the sealing gasket, enhance the overall structural strength of the connection, and further extend the service life of the insulator. In summary, this utility model, through multifaceted structural innovations, comprehensively optimizes the performance of suspension porcelain insulators, possessing high practical value and promising prospects for widespread application. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a side sectional view of the present invention. Figure 3 This is a top-section structural diagram of the present invention; Figure 4 This is a schematic diagram of the protective component structure of this utility model.

[0014] In the diagram: 1. Porcelain insulator; 2. Umbrella skirt; 3. Reinforcing ring; 4. Upper connecting hardware; 5. Lower connecting hardware; 6. Protective component; 61. Metal protective half-ring one; 62. Metal protective half-ring two; 63. Hinge; 64. Fixed connector; 65. Bolt; 66. Nut; 67. Sealing gasket. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-4 This utility model provides a technical solution: a suspension porcelain insulator with umbel skirts and reinforcing rings, comprising a porcelain insulator 1 and upper connecting hardware 4 and lower connecting hardware 5 respectively disposed at both ends of the porcelain insulator 1. Multiple umbel skirts 2 are spaced apart along the axial direction of the porcelain insulator 1, and a reinforcing ring 3 is disposed between adjacent umbel skirts 2. The inner ring of the reinforcing ring 3 is fixedly connected to the outer wall of the porcelain insulator 1, and the upper and lower end faces of the reinforcing ring 3 are fixedly connected to the opposite sides of two adjacent umbel skirts 2, respectively. The connection surface between the reinforcing ring 3 and the umbel skirts 2 is configured as an arc-shaped transition portion. The arc-shaped transition portion design can effectively disperse stress, avoid stress concentration at the connection point, further enhance the firmness of the connection between the umbel skirts 2 and the reinforcing ring 3, and reduce the problem of breakage caused by stress concentration. Furthermore, the reinforcing ring 3 is made of ceramic and is integrally formed with the ceramic insulator 1 and the skirt 2; the upper surface of the skirt 2 is provided with spiral-shaped flow-guiding protrusions. The use of ceramic material and integral molding design ensures a firm connection between the reinforcing ring 3 and the ceramic insulator 1 and skirt 2, preventing loosening. Simultaneously, the ceramic material possesses excellent insulation and corrosion resistance, matching the performance of the ceramic insulator 1 and skirt 2, ensuring the overall performance stability of the insulator. The spiral-shaped flow-guiding protrusions guide rainwater to flow down quickly, reducing the residence time of rainwater on the surface of the skirt 2, decreasing the possibility of stain adhesion, and improving the insulator's anti-flashover performance. The spiral structure of the flow-guiding protrusions creates a rotating impact force during rainwater flow, which more effectively washes away stains on the surface of the skirt 2, reducing stain residue. From a structural strength perspective, the spirally distributed flow-guiding protrusions more evenly disperse the stress on the surface of the skirt 2, which helps extend the service life of the skirt 2.

[0017] Furthermore, the outer diameter of the reinforcing ring 3 is smaller than that of the umbrella skirt 2, and the cross-section of the reinforcing ring 3 is trapezoidal, with its outer wall inclined outwards. It should be noted that the reinforcing ring 3 is truncated cone-shaped. This design not only prevents the reinforcing ring 3 from affecting the creepage distance of the umbrella skirt 2, ensuring that the umbrella skirt 2 can properly increase the creepage distance, but the trapezoidal structure and inclined outer wall also increase the structural strength of the reinforcing ring 3 itself, while facilitating rainwater flow down its surface and reducing dirt accumulation.

[0018] Furthermore, the inner wall of the reinforcing ring 3 is uniformly distributed with annular reinforcing ribs, which are fixedly connected to the outer wall of the ceramic insulator 1. The annular reinforcing ribs can enhance the connection strength between the reinforcing ring 3 and the ceramic insulator 1, and at the same time improve the deformation resistance of the reinforcing ring 3 itself, so that the reinforcing ring 3 can better play its supporting and reinforcing role when subjected to external forces.

[0019] Furthermore, multiple heat dissipation protrusions are evenly distributed on the outer wall of the reinforcing ring 3. These protrusions extend along the axial direction of the reinforcing ring 3 and connect to the ends of the spiral guiding protrusions on the upper surface of the umbrella skirt 2. The heat dissipation protrusions increase the heat dissipation area of ​​the reinforcing ring 3, improve the heat dissipation performance of the insulator, and prevent the insulation performance of the insulator from being affected by heat accumulation in high-temperature environments. At the same time, the connection between the heat dissipation protrusions and the spiral guiding protrusions allows rainwater on the reinforcing ring 3 to be guided downwards between the spiral guiding protrusions on the umbrella skirt 2, further promoting rainwater discharge and enhancing the drainage effect.

[0020] Furthermore, protective components 6 are provided at the connection points between the upper connecting hardware 4 and the lower connecting hardware 5 and the ceramic insulator 1. The protective components 6 include a metal protective half-ring 61, a metal protective half-ring 62, a hinge 63, a fixing connector 64, a bolt 65, a nut 66, and a sealing gasket 67. The metal protective half-ring 61 and the metal protective half-ring 62 are connected by the hinge 63. Both the metal protective half-ring 61 and the metal protective half-ring 62 are provided with fixing connectors 64, and the two fixing connectors 64 are fixed together by bolts 65 and nuts 66. Sealing gaskets 67 are pasted on the inner side of both the metal protective half-ring 61 and the metal protective half-ring 62. The sealing gaskets 67 are pressed and bonded to the connection points between the upper connecting hardware 4 and the lower connecting hardware 5 and the ceramic insulator 1 by the metal protective half-ring 61 and the metal protective half-ring 62. The sealing gasket 67 can effectively prevent moisture, dust and other substances from entering the connection between the connecting hardware and the ceramic insulator 1, and prevent corrosion of the metal parts; the metal protective ring can protect the sealing gasket 67, prevent the sealing gasket 67 from being damaged by external forces, and at the same time enhance the overall structural strength of the connection, so as to facilitate the disassembly and replacement of the protective component 6.

[0021] Specifically, the ceramic insulator 1, as the core insulating component, utilizes the excellent insulating properties of ceramic material to isolate the conductor from grounded parts such as poles and towers, preventing current leakage and ensuring the safety of power transmission. The upper connecting hardware 4 and the lower connecting hardware 5 connect the conductor and the pole and tower respectively. With their high-strength metal material, they bear the weight of the conductor and transfer the load to the pole and tower, achieving stable suspension and support for the conductor. The reinforcing ring 3 between adjacent umbrella skirts 2 adopts a frustum-shaped structure. Its upper and lower end faces are fixedly connected to the adjacent umbrella skirts 2, and its inner ring is fixedly connected to the outer wall of the ceramic insulator 1. This structure can distribute the external force and bending stress on the umbrella skirts 2 to the ceramic insulator 1 and the adjacent umbrella skirts 2, avoiding stress concentration that could lead to breakage of the umbrella skirts 2. The arc-shaped transition section further optimizes the stress distribution and enhances the impact and bending resistance of the connection area. The annular reinforcing ribs on the inner wall of the reinforcing ring 3 increase the connection strength with the ceramic insulator 1 and improve the deformation resistance of the reinforcing ring 3 itself, making the overall structure more stable. The spiral-shaped guide protrusions on the upper surface of the umbrella skirt 2 guide rainwater to flow along a spiral trajectory. The rotational impact force generated during the flow effectively washes away surface stains and reduces stagnation. Since the outer diameter of the reinforcing ring 3 is smaller than that of the umbrella skirt 2, the heat dissipation protrusions on the outer wall of the reinforcing ring 3 connect with the spiral-shaped guide protrusions. Rainwater on the outer wall of the reinforcing ring 3 flows smoothly into the space between the spiral-shaped guide protrusions, quickly removing rainwater and stains from the surfaces of the umbrella skirt 2 and the reinforcing ring 3, reducing the risk of flashover.

[0022] The heat dissipation protrusions on the outer wall of the reinforcing ring 3 increase the contact area with air, facilitating the dissipation of heat generated during insulator operation, such as heat transfer from conductors and heat generated by partial discharge, into the surrounding environment through thermal conduction and air convection. Furthermore, rainwater flowing over the heat dissipation protrusions can also carry away some heat, enhancing the heat dissipation effect and preventing high temperatures from affecting insulation performance. The sealing gasket 67 at the connection points of the upper connecting hardware 4 and the lower connecting hardware 5 with the porcelain insulator 1 effectively prevents moisture, dust, and other contaminants from entering the connection gap, thus preventing corrosion of the metal connecting hardware. The metal protective half-ring 61 and the metal protective half-ring 62 provide physical protection for the sealing gasket 67, preventing damage from external forces. They also enhance the overall structural strength of the connection points, extend the service life of the insulator, facilitate assembly and disassembly, and improve efficiency.

[0023] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A suspension porcelain insulator with shed-skirt reinforcement rings, comprising a porcelain insulator (1) and upper connecting fittings (4) and lower connecting fittings (5) respectively disposed at both ends of the porcelain insulator (1), wherein a plurality of sheds (2) are provided at intervals along the axial direction of the porcelain insulator (1), characterized in that: A reinforcing ring (3) is provided between two adjacent umbrella skirts (2). The inner ring of the reinforcing ring (3) is fixedly connected to the outer wall of the ceramic insulator (1). The upper and lower end faces of the reinforcing ring (3) are fixedly connected to the opposite sides of the two adjacent umbrella skirts (2). The connection surface between the reinforcing ring (3) and the umbrella skirt (2) is set as an arc-shaped transition part.

2. The suspension porcelain insulator with umbrella skirt reinforced rings of claim 1, characterized in that: The reinforcing ring (3) is made of ceramic and is integrally formed with the ceramic insulator (1) and the umbrella skirt (2); the upper surface of the umbrella skirt (2) is provided with spiral guiding protrusions.

3. The suspension porcelain insulator with umbrella-shaped reinforcing ring according to claim 1, characterized in that: The outer diameter of the reinforcing ring (3) is smaller than the outer diameter of the umbrella skirt (2), the cross-section of the reinforcing ring (3) is trapezoidal, and its outer wall is inclined to the outside.

4. The suspension porcelain insulator with umbrella skirt reinforcement ring according to claim 1, characterized in that: The inner wall of the reinforcing ring (3) is uniformly distributed with annular reinforcing ribs, which are fixedly connected to the outer wall of the ceramic insulator (1).

5. The suspension porcelain insulator with umbrella skirt reinforcement ring according to claim 1, characterized in that: Multiple heat dissipation protrusions are uniformly arranged on the outer wall of the reinforcing ring (3). The heat dissipation protrusions extend along the axial direction of the reinforcing ring (3) and are connected to the end of the spiral guiding protrusion on the upper surface of the umbrella skirt (2).

6. The suspension porcelain insulator with umbrella skirt reinforced rings of claim 1, wherein: The upper connecting hardware (4) and the lower connecting hardware (5) are both equipped with protective components (6) at their connection points with the ceramic insulator (1). The protective components (6) include a first metal protective half-ring (61), a second metal protective half-ring (62), a hinge (63), a fixed connector (64), a bolt (65), a nut (66), and a sealing gasket (67). The first metal protective half-ring (61) and the second metal protective half-ring (62) are connected by a hinge (63). The first metal protective half-ring (61) and the second metal protective half-ring (62) are connected by a hinge (63). The metal protective half ring two (62) is provided with a fixed connector (64), and the two fixed connectors (64) are fixed together by bolts (65) and nuts (66). The inner sides of the metal protective half ring one (61) and the metal protective half ring two (62) are both covered with sealing gaskets (67). The sealing gaskets (67) are connected to the upper connecting hardware (4) and the lower connecting hardware (5) and the ceramic insulator (1) by the compression and contact of the metal protective half ring one (61) and the metal protective half ring two (62).

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