High-strength electric porcelain insulator with composite structure

Abstract

The utility model relates to the technical field of electric power fittings, in particular to a high-strength electric porcelain insulator with a composite structure, which comprises a glass fiber reinforced plastic core rod and a plurality of groups of composite umbrella skirt sheaths, and the top and the bottom of the glass fiber reinforced plastic core rod are respectively provided with a replaceable top ring seat and a replaceable bottom fixing seat. The replaceable top ring seat and the replaceable bottom fixing seat are convenient to replace when being damaged; through a first fixing bolt at the top of the outer wall of the glass fiber reinforced plastic core rod and a second fixing bolt at the bottom of the outer wall, the top ring seat and the bottom fixing seat can be stably mounted on the glass fiber reinforced plastic core rod; the supporting columns at the bottom of the top ring seat and the connecting plugs at the bottom of the top ring seat are matched with the top inserting ports of the glass fiber reinforced plastic core rod in an inserting mode, and the connecting columns on the top face of the bottom fixing seat are matched with the bottom inserting ports of the glass fiber reinforced plastic core rod in an inserting mode, so that all parts are connected more tightly and stably. And the overall reliability of the high-strength electric porcelain insulator with the composite structure is ensured.

Description

Technical Field

[0001] This utility model relates to the field of power accessories technology, specifically to a high-strength porcelain insulator with a composite structure. Background Technology

[0002] With the continuous development and upgrading of power systems, the performance requirements for porcelain insulators are becoming increasingly stringent. As an indispensable component of power systems, the quality and performance of porcelain insulators directly affect the safe operation of the power system. Existing porcelain insulators are often structurally simple, with insufficiently secure connections between the core rod and the shed sheath. Most components of porcelain insulators are integrally molded or use connection methods that are difficult to disassemble. When a component of the insulator (such as the top or bottom connector) is damaged, the entire insulator often needs to be replaced, resulting in high maintenance costs, long maintenance times, and reduced maintenance efficiency of the power system. Utility Model Content

[0003] The purpose of this invention is to provide a high-strength porcelain insulator with a composite structure, in order to solve the problem mentioned in the background art that the existing porcelain insulator has a single structure and is an integral structure.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A high-strength porcelain insulator with a composite structure includes a fiberglass core rod and several sets of composite shed sheaths. The top and bottom of the fiberglass core rod are respectively equipped with replaceable top ring seats and bottom fixing seats.

[0006] The top and bottom of the fiberglass core rod are coaxially provided with insertion interfaces for installing the top ring seat and the bottom fixing seat. The top of the outer wall of the fiberglass core rod is provided with several sets of uniformly spaced first fixing bolts for fixing the top ring seat, and the bottom of the outer wall of the fiberglass core rod is provided with several uniformly spaced second fixing bolts for fixing the bottom fixing seat.

[0007] The bottom of the top ring seat is coaxially connected to a support column, and the bottom of the support column is coaxially connected to a plug-in connector that is compatible with and fits into the insertion interface size of the top of the fiberglass core rod.

[0008] The top surface of the bottom fixing base is coaxially mounted with a connecting post that is compatible with the insertion interface size of the bottom of the fiberglass core rod and is inserted into it.

[0009] Preferably, the composite umbrella skirt sheath includes a ceramic inner core, and the outer wall of the ceramic inner core is provided with an anti-collision inner shell.

[0010] Preferably, the anti-collision inner shell is made of aramid fiber reinforced inner shell or glass fiber reinforced inner shell, with a thickness of 2-4mm.

[0011] Preferably, the surface of the anti-collision inner shell is provided with a silicone rubber insulating layer, the thickness of which is 3-5mm.

[0012] Preferably, the surface of the silicone rubber insulating layer is provided with an anti-flashover coating.

[0013] Preferably, the anti-flashover coating is a polytetrafluoroethylene anti-flashover coating or a nano-composite anti-flashover coating, and the thickness is 0.25-0.5 mm.

[0014] Preferably, the outer wall of the connector is provided with a connecting screw hole for installing the first fixing bolt.

[0015] Preferably, the outer wall of the connecting column is provided with a fixing screw hole for installing the second fixing bolt.

[0016] Compared with existing technologies, the beneficial effects of this utility model are:

[0017] In this high-strength porcelain insulator with a composite structure, the replaceable top ring seat and bottom fixing seat facilitate replacement when damaged, avoiding complete scrapping. The top ring seat and bottom fixing seat are securely installed on the fiberglass core rod by the first fixing bolt at the top of the outer wall and the second fixing bolt at the bottom of the outer wall. The connection between the support column at the bottom of the top ring seat and its bottom plug-in interface with the top plug-in interface of the fiberglass core rod, as well as the connection between the connecting column on the top surface of the bottom fixing seat and the bottom plug-in interface of the fiberglass core rod, makes the connection between the components tighter and more stable, ensuring the overall reliability of the high-strength porcelain insulator with the composite structure.

[0018] In this high-strength porcelain insulator with a composite structure, the ceramic inner core serves as the core component of the composite shed sheath. The ceramic inner core provides excellent insulation performance and mechanical strength, enabling the entire insulator to operate stably under high voltage conditions. The anti-collision inner shell effectively enhances the impact resistance of the composite shed sheath, preventing damage from external impacts in harsh environments, thereby extending the service life of the insulator.

[0019] In this high-strength porcelain insulator with a composite structure, the surface of the silicone rubber insulation layer is provided with an anti-flashover coating. The anti-flashover coating is made of polytetrafluoroethylene or a nano-composite anti-flashover coating. The anti-flashover coating effectively prevents the accumulation of dirt on the surface of the insulator and the occurrence of discharge phenomena, improves the anti-flashover capability of the insulator, and ensures the safe operation of the power system. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are explained in detail together with the embodiments of the present invention, but do not constitute a limitation thereof.

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is an exploded structural diagram of the present invention;

[0023] Figure 3 This is a schematic diagram of the cross-sectional structure of the composite umbrella skirt sheath of this utility model;

[0024] 10. Fiberglass core rod; 11. Insertion interface; 12. First fixing bolt; 13. Second fixing bolt;

[0025] 20. Composite umbrella skirt sheath; 21. Ceramic inner core; 22. Anti-collision inner shell; 23. Silicone rubber insulation layer; 24. Anti-flashover coating;

[0026] 30. Top ring seat; 31. Support column; 32. Plug; 33. Connecting screw hole;

[0027] 40. Bottom fixing base; 41. Connecting post; 42. Fixing screw hole. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments and accompanying drawings. 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.

[0029] In the description of this utility model, it should be understood that the terms "center", "vertical", "horizontal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of this utility model and to simplify the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] High-strength porcelain insulators with composite structures, such as Figures 1-3As shown, the device includes a fiberglass core rod 10 and several sets of composite umbrella skirt sheaths 20. The top and bottom of the fiberglass core rod 10 are respectively equipped with replaceable top ring seats 30 and bottom fixing seats 40. Both the top and bottom of the fiberglass core rod 10 have coaxially arranged insertion interfaces 11 for installing the top ring seats 30 and bottom fixing seats 40. The top of the outer wall of the fiberglass core rod 10 is equipped with several sets of evenly spaced first fixing bolts 12 for fixing the top ring seats 30, and the bottom of the outer wall of the fiberglass core rod 10 is equipped with several evenly spaced second fixing bolts 13 for fixing the bottom fixing seats 40. A support column 31 is coaxially connected to the bottom of the top ring seat 30, and a plug connector 32, matching the size of the insertion interface 11 at the top of the fiberglass core rod 10, is coaxially connected to the bottom of the support column 31. The top surface of the bottom fixing seat 40 is coaxially... The fiberglass core rod 10 is equipped with a connecting post 41 that is compatible with the size of the insertion interface 11 at the bottom of the fiberglass core rod 10 and is plugged in. The replaceable top ring seat 30 and bottom fixing seat 40 make it easy to replace when damaged, avoiding the scrapping of the whole. The top ring seat 30 and bottom fixing seat 40 can be firmly installed on the fiberglass core rod 10 by the first fixing bolt 12 at the top of the outer wall and the second fixing bolt 13 at the bottom of the outer wall. The plugging and mating of the support post 31 at the bottom of the top ring seat 30 and its bottom insertion connector 32 with the top insertion interface 11 of the fiberglass core rod 10, and the plugging and mating of the connecting post 41 on the top surface of the bottom fixing seat 40 with the bottom insertion interface 11 of the fiberglass core rod 10, make the connection between the components tighter and more stable, ensuring the overall reliability of the high-strength porcelain insulator of the composite structure.

[0031] Furthermore, the composite shed sheath 20 includes a ceramic inner core 21, and an anti-collision inner shell 22 is provided on the outer wall of the ceramic inner core 21. The anti-collision inner shell 22 is made of aramid fiber reinforced inner shell or glass fiber reinforced inner shell, with a thickness of 2-4mm. As the core part of the composite shed sheath 20, the ceramic inner core 21 provides excellent insulation performance and mechanical strength, enabling the entire insulator to operate stably in a high-voltage environment. The anti-collision inner shell 22 effectively enhances the impact resistance of the composite shed sheath 20, preventing damage due to external impact in harsh environments, thereby extending the service life of the insulator.

[0032] Specifically, the surface of the anti-collision inner shell 22 is provided with a silicone rubber insulation layer 23, which has a thickness of 3-5mm. The silicone rubber insulation layer 23 not only provides additional insulation protection, but also has good weather resistance and aging resistance, further improving the reliability and stability of the insulator.

[0033] The surface of the silicone rubber insulation layer 23 is provided with an anti-pollution flashover coating 24. The anti-pollution flashover coating 24 is made of polytetrafluoroethylene or nano-composite anti-pollution flashover coating and has a thickness of 0.25-0.5mm. The anti-pollution flashover coating 24 effectively prevents the accumulation of dirt on the surface of the insulator and the occurrence of discharge phenomena, improves the anti-pollution flashover capability of the insulator, and ensures the safe operation of the power system.

[0034] In addition, the outer wall of the plug 32 is provided with a connecting screw hole 33 for installing the first fixing bolt 12, so that the first fixing bolt 12 can firmly fix the top ring seat 30 to the fiberglass core rod 10, thereby enhancing the connection strength and stability of the structure. The outer wall of the connecting column 41 is provided with a fixing screw hole 42 for installing the second fixing bolt 13, so that the second fixing bolt 13 can reliably fix the bottom fixing seat 40 to the fiberglass core rod 10, thereby enhancing the connection strength and stability of the structure and ensuring the overall performance of the insulator.

[0035] The working principle of this high-strength porcelain insulator with a composite structure:

[0036] First, during installation, align the connecting post 41 of the bottom fixing seat 40 with the insertion interface 11 at the bottom of the fiberglass core rod 10 and insert it. Then, use the second fixing bolt 13 to engage with the fixing screw hole 42 on the outer wall of the connecting post 41 to firmly fix the bottom fixing seat 40 to the bottom of the fiberglass core rod 10. Next, align the insertion connector 32 of the top ring seat 30 with the insertion interface 11 at the top of the fiberglass core rod 10 and insert it. Then, use the first fixing bolt 12 to engage with the connecting screw hole 33 on the outer wall of the insertion connector 32 to firmly install the top ring seat 30 on the top of the fiberglass core rod 10.

[0037] During use, the composite umbrella skirt sheath 20 plays a role in insulation and protection; the ceramic inner core 21 provides basic insulation performance, the anti-collision inner shell 22 protects the ceramic inner core 21 from external impact, the silicone rubber insulation layer 23 enhances the insulation effect and weather resistance, and the anti-flashover coating 24 prevents the insulator surface from producing flashover in harsh environments.

[0038] When it is necessary to replace the top ring seat 30 or the bottom fixing seat 40, simply unscrew the corresponding first fixing bolt 12 or second fixing bolt 13, remove the damaged part, replace it with a new part, and reinstall and fix it. The operation is convenient.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-strength porcelain insulator with a composite structure, characterized in that: It includes a fiberglass core rod (10) and several sets of composite umbrella skirt sheaths (20). The top and bottom of the fiberglass core rod (10) are respectively equipped with replaceable top ring seat (30) and bottom fixing seat (40). The top and bottom of the fiberglass core rod (10) are coaxially provided with insertion interfaces (11) for installing the top ring seat (30) and the bottom fixing seat (40). The top of the outer wall of the fiberglass core rod (10) is provided with several sets of uniformly spaced first fixing bolts (12) for fixing the top ring seat (30). The bottom of the outer wall of the fiberglass core rod (10) is provided with several uniformly spaced second fixing bolts (13) for fixing the bottom fixing seat (40). The bottom of the top ring seat (30) is coaxially connected to a support column (31), and the bottom of the support column (31) is coaxially connected to a plug connector (32) that is compatible with the size of the plug interface (11) at the top of the fiberglass core rod (10) and is plugged in. The top surface of the bottom fixing base (40) is coaxially mounted with a connecting post (41) that is compatible with the size of the insertion interface (11) at the bottom of the fiberglass core rod (10) and is inserted into it.

2. The high-strength porcelain insulator with a composite structure according to claim 1, characterized in that: The composite umbrella skirt sheath (20) includes a ceramic inner core (21), and the outer wall of the ceramic inner core (21) is provided with an anti-collision inner shell (22).

3. The high-strength porcelain insulator with a composite structure according to claim 2, characterized in that: The anti-collision inner shell (22) is made of aramid fiber reinforced inner shell or glass fiber reinforced inner shell, with a thickness of 2-4mm.

4. The high-strength porcelain insulator with a composite structure according to claim 2, characterized in that: The surface of the anti-collision inner shell (22) is provided with a silicone rubber insulation layer (23), the thickness of which is 3-5mm.

5. The high-strength porcelain insulator with a composite structure according to claim 4, characterized in that: The surface of the silicone rubber insulating layer (23) is provided with an anti-flashover coating (24).

6. The high-strength porcelain insulator with a composite structure according to claim 5, characterized in that: The anti-flashover coating (24) is a polytetrafluoroethylene anti-flashover coating or a nano-composite anti-flashover coating, and the thickness is 0.25-0.5 mm.

7. The high-strength porcelain insulator with a composite structure according to claim 1, characterized in that: The outer wall of the connector (32) is provided with a connecting screw hole (33) for installing the first fixing bolt (12).

8. The high-strength porcelain insulator with a composite structure according to claim 1, characterized in that: The outer wall of the connecting column (41) is provided with a fixing screw hole (42) for installing the second fixing bolt (13).

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