A fuse support insulator
By dispersing bending forces through the inclined insulator body and support components, the problem of loosening and breakage at the connection points of the fuse support structure is solved, thereby improving the reliability and stability of the equipment, extending its service life, and reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DALIAN INSULATOR FUJIAN CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-06-19
AI Technical Summary
The existing fuse support structure is prone to loosening and breakage at the connection points during use, resulting in poor stability. This is especially true in outdoor environments where the stability is affected, impacting equipment reliability and service life.
The insulator body is inclined, fixed components are fixed at both ends, and support components are rotated. The insulator connecting rod and rotating sub-assembly are used to disperse bending force to ensure fixed stability, and the cleaning components and split structure design improve maintenance convenience.
It effectively reduces the risk of loosening and breakage of connection parts, improves equipment reliability and stability, extends service life, reduces manual maintenance costs, and enhances maintainability.
Smart Images

Figure CN224383990U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of insulator technology, and in particular to a fuse support insulator. Background Technology
[0002] In power systems, fuses are important protective devices that need to be reliably supported and insulated from the ground to ensure the safe and stable operation of the power system.
[0003] Existing fuse support structures typically use insulated support bases to fix the fuse in place, thereby ensuring a certain insulation distance and mechanical strength. However, the following problems still exist during use:
[0004] 1. Currently, the support base mainly fixes the fuse by vertical force. During the fuse opening and closing operation, the support structure will be subjected to a large bending force. Over time, under this continuous bending force, the connection parts are very prone to loosening or even breaking, which not only seriously affects the reliability of the equipment, but also significantly shortens the service life of the equipment;
[0005] 2. Since fuses are mostly used outdoors, where temperature and humidity vary considerably, when fuses are idle for extended periods, the connection between the insulator and the cap may loosen due to exposure to sunlight and rain. This can cause the supporting structure to wobble, severely impacting the stability of the fuse and posing a potential hazard to the safe operation of the power system. Utility Model Content
[0006] In order to solve the above problems, the purpose of this utility model is to provide a fuse support insulator, which solves the problems of easy loosening and breakage of connection parts and poor stability in the existing fuse support structure during use.
[0007] To achieve the above objectives, the present invention adopts the following technical solution:
[0008] A fuse support insulator includes an insulator body arranged at an angle, a pair of fixing components respectively fixed at both ends of the insulator body, and a support component rotatably mounted on two iron caps at both ends; each fixing component includes a fixing cap fixedly sleeved on the end of the insulator body and coaxially arranged with the insulator body, and a support rod horizontally fixed outside the fixing cap and integrally arranged with the fixing cap; the support component includes a pair of rotating sub-assemblies respectively rotatably sleeved outside the fixing part, and a pair of insulating connecting rods fixed between the two rotating assemblies and symmetrically located on both sides of the insulator body.
[0009] Even better, each insulating connecting rod is also fixed with a cleaning component that abuts against the outer wall of the insulator body on its inner side.
[0010] More preferably, each fixed cap has an annular groove around its outer side, and each set of rotating sub-assemblies includes a rotating ring rotatably disposed in the annular groove and an arc-shaped guide ring fixedly sleeved on the outer side of the rotating ring and with its inner side abutting against the outer wall of the fixed cap.
[0011] More preferably, the rotating ring is composed of two interlocking rotating semi-rings, and the arc-shaped guide ring is composed of two interlocking arc-shaped guide semi-rings.
[0012] More preferably, the inclination angle of the fixed cap axis relative to the support rod axis is 10° to 30°.
[0013] This utility model has the following beneficial effects:
[0014] 1. This utility model, with its inclined insulator body, a pair of iron caps fixed at both ends of the insulator body and coaxial with the insulator body, and a pair of horizontally arranged support rods respectively fixed on the outside of the two fixed caps, changes the traditional fuse support structure that relies solely on vertical force for fixation. During the opening and closing of the fuse, the inclined arrangement of this device effectively disperses the bending force, avoiding excessive stress on the connection parts, thereby greatly reducing the risk of loosening and breakage of the connection parts, significantly improving the reliability of the equipment, and extending the service life of the equipment.
[0015] 2. In this utility model, two insulating connecting rods are fixed between two sets of rotating sub-assemblies that are respectively rotatably sleeved on the outside of the iron caps on the corresponding sides. This ensures that when the fuse is used outdoors, even if the fixation between the insulator body and the iron cap becomes loose due to long-term exposure to sunlight, rain, or other harsh environments, the distance between the two iron caps can remain unchanged under the action of the two insulating connecting rods. This maximizes the fixation stability between the insulator body and the iron cap, prevents the support structure from shaking, and ensures the stability of the fuse when it is fixed, thus providing a reliable guarantee for the safe operation of the power system.
[0016] 3. In this utility model, the cleaning component on the inner side of the insulating connecting rod rotates along the outer side of the insulator body under the action of wind, thereby automatically cleaning the insulator body, reducing manual maintenance costs and maintenance frequency, and improving the maintenance convenience of the equipment; at the same time, the split structure design of the rotating ring and the arc-shaped guide ring facilitates the installation, disassembly and replacement of components, further improving the maintainability of the equipment. Attached Figure Description
[0017] Figure 1 A schematic diagram of the overall structure supporting the insulator;
[0018] Figure 2 A schematic diagram showing the support for the insulator;
[0019] Figure 3 This is a schematic diagram of the cross-section at point AA;
[0020] Figure 4 This is an enlarged view of the structure at point B;
[0021] Figure 5 A schematic diagram of the front of the supporting insulator;
[0022] Figure 6 This is a schematic diagram of the cross-section at point CC.
[0023] Explanation of reference numerals in the attached figures:
[0024] 1. Insulator body; 2. Fixing assembly; 21. Fixing cap; 211. Ring groove; 22. Support rod; 3. Support assembly; 31. Rotating sub-assembly; 311. Rotating ring; 3111. Rotating half-ring; 312. Arc-shaped guide ring; 3121. Arc-shaped guide half-ring; 32. Insulating connecting rod; 33. Cleaning component. Detailed Implementation
[0025] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0026] A fuse support insulator includes an insulator body 1 arranged at an angle, a pair of fixing components 2 respectively fixed at both ends of the insulator body 1, and a support component 3 rotatably mounted on two iron caps at both ends. Each fixing component 2 includes a fixing cap 21 fixedly sleeved on the end of the insulator body 1 and coaxially arranged with the insulator body 1, and a support rod 22 horizontally fixed on the outside of the fixing cap 21 and integrally arranged with the fixing cap 21. The support component 3 includes a pair of rotating sub-components 31 respectively rotatably sleeved on the outside of the fixing part, and a pair of insulating connecting rods 32 fixed between the two rotating sub-components 31 and symmetrically located on both sides of the insulator body 1.
[0027] By using an inclined insulator body 1, a pair of iron caps 21 fixed at both ends of the insulator body 1 and coaxially mounted with the insulator body 1, and a pair of horizontally mounted support rods fixed to the outside of the two fixed caps 21 respectively, the traditional fuse support structure relies solely on vertical force for fixation. During the opening and closing of the fuse, the inclined arrangement of this device effectively disperses bending force, avoiding excessive stress on the connection parts, thereby greatly reducing the risk of loosening and breakage of the connection parts, significantly improving the reliability of the equipment, and extending its service life. By using two insulating connecting rods 32 fixed between two rotating sub-assemblies 31 that are rotatably sleeved on the outside of the corresponding iron caps 21, when the fuse is used outdoors, even if the fixation between the insulator body 1 and the iron caps 21 becomes loose due to long-term exposure to sunlight, rain, or other harsh environments, the distance between the two iron caps 21 can remain unchanged under the action of the two insulating connecting rods 32. This maximizes the fixation stability between the insulator body 1 and the iron caps 21, prevents the support structure from shaking, ensures the stability of the fuse during fixation, and provides a reliable guarantee for the safe operation of the power system.
[0028] As a possible implementation of this solution, preferably, each insulating connecting rod 32 is also fixed with a cleaning component 33 that abuts against the outer wall of the insulator body 1 on its inner side; the cleaning component 33 on the inner side of the insulating connecting rod 32 rotates along the outer side of the insulator body 1 under the action of wind force, thereby automatically cleaning the insulator body 1, reducing manual maintenance costs and maintenance frequency, and improving the maintenance convenience of the equipment.
[0029] As a possible implementation of this solution, preferably, each fixing cap 21 is surrounded by an annular groove 211, and each set of rotating sub-assemblies 31 includes a rotating ring 311 rotatably disposed in the annular groove 211 and an arc-shaped guide ring 312 fixedly sleeved on the outside of the rotating ring 311 and with its inner side abutting against the outer wall of the fixing cap 21; the arc-shaped guide ring 312 guides the liquid to flow down, preventing the liquid from accumulating in the annular groove 211 of the fixing cap 21, thereby minimizing the erosion of the connection between the rotating ring 311 and the fixing cap 21 by rainwater, etc.
[0030] As a possible implementation of this solution, preferably, the rotating ring 311 is composed of two interlocking rotating half-rings 3111, and the arc-shaped guide ring 312 is composed of two interlocking arc-shaped guide half-rings 3121. The split structure design of the rotating ring 311 and the arc-shaped guide ring 312 facilitates the installation, disassembly, and replacement of components, further improving the maintainability of the equipment. In order to minimize the flow of rainwater from between the two arc-shaped guide half-rings 3121 and the two rotating half-rings 3111 into the space between the rotating ring 311 and the ring groove 211, the interlocking points of the two arc-shaped guide half-rings 3121 and the two rotating half-rings 3111 are perpendicular to each other.
[0031] As a possible implementation of this solution, preferably, in order to balance the reverse bending moment and the supporting axial force as much as possible, so as to minimize the occurrence of buckling under compression or fracture under tension of the support while dispersing the bending force, the inclination angle of the axis of the fixing cap 21 relative to the axis of the support rod 22 is 10° to 30°.
[0032] The above description is only a specific embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural transformations made based on the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A fuse support insulator, characterized in that: It includes an insulator body (1) that is inclined, a pair of fixing components (2) that are respectively fixed at both ends of the insulator body (1), and a support component (3) that is rotatably installed on two iron caps at both ends; Each set of fixing components (2) includes a fixing cap (21) that is fixedly sleeved on the end of the insulator body (1) and coaxially arranged with the insulator body (1), and a support rod (22) that is horizontally fixed on the outside of the fixing cap (21) and integrally arranged with the fixing cap (21); The support assembly (3) includes a pair of rotating sub-assemblies (31) respectively rotatably sleeved on the outside of the fixed part, and a pair of insulating connecting rods (32) fixed between the two rotating sub-assemblies (31) and symmetrically located on both sides of the insulator body (1).
2. The fuse support insulator according to claim 1, characterized in that: Each insulating connecting rod (32) also has a cleaning part (33) fixed on its inner side, which abuts against the outer wall of the insulator body (1).
3. The fuse support insulator according to claim 1, characterized in that: Each fixed cap (21) has an annular groove (211) around its outer side. Each set of rotating sub-assemblies (31) includes a rotating ring (311) rotatably disposed in the annular groove (211) and an arc-shaped guide ring (312) fixedly sleeved on the outer side of the rotating ring (311) and with its inner side abutting against the outer wall of the fixed cap (21).
4. The fuse support insulator according to claim 3, characterized in that: The rotating ring (311) is composed of two interlocking rotating half-rings (3111), and the arc-shaped flow guide ring (312) is composed of two interlocking arc-shaped flow guide half-rings (3121).
5. The fuse support insulator according to claim 1, characterized in that: The angle of inclination of the axis of the fixing cap (21) relative to the axis of the support rod (22) is 10° to 30°.