A type of porcelain insulator for high-altitude use

Abstract

This utility model relates to the field of insulator technology, specifically disclosing a porcelain insulator for high-altitude use, including a base and several porcelain insulator bodies stacked sequentially. The upper surfaces of both the base and the porcelain insulator bodies are provided with several threaded holes and several insertion holes. Locking bolts are inserted into the porcelain insulator bodies through the insertion holes. In this utility model, the locking bolts make the porcelain insulator body and the base form a whole. Similarly, the remaining porcelain insulator bodies can be connected end to end in sequence. The final connected insulator has no exposed bolts or other components on its exterior. Therefore, compared with traditional solutions, this solution has no exposed protruding components, thus avoiding adverse effects on cable contact. It also avoids damage from external rain or dust, simplifies the structure, reduces costs, and improves cost-effectiveness, thereby facilitating widespread use.

Description

Technical Field

[0001] This utility model relates to the field of insulator technology, and in particular to a porcelain insulator for use at high altitudes. Background Technology

[0002] An insulator is a special type of insulating control that plays a crucial role in overhead power transmission lines. In the early days, insulators were primarily used on utility poles. Gradually, they evolved into disc-shaped insulators hung at one end of high-voltage power line towers to increase creepage distance. These are typically made of glass or ceramic and are called insulators. A current Chinese patent application (application number 202420176321.6) discloses a ceramic insulator, comprising ceramic units with a connecting assembly for linking adjacent units. The assembly includes a fixing block fixedly mounted on top of the ceramic units, a positioning ring fixedly connected to the bottom of each unit, a positioning groove on the top of the fixing block that matches the positioning ring, an installation groove inside the fixing block, a bidirectional lead screw movably connected to the inner wall of the installation groove, two symmetrically distributed sliders movably mounted on the outer surface of the bidirectional lead screw, a moving rod fixedly connected to the top of each slider, a locking rod fixedly connected to the top of each moving rod, and a locking groove on the inner wall of the positioning ring that matches the locking rod.

[0003] While the aforementioned technology allows for easy assembly and disassembly of ceramic units by rotating a lead screw, its numerous components and complex structure make it prone to damage and result in low cost-effectiveness. Therefore, to address these shortcomings, we propose a ceramic insulator for high-altitude applications. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a porcelain insulator for high-altitude use.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A porcelain insulator for high-altitude use includes a base and several porcelain insulator bodies stacked sequentially. The upper surfaces of the base and the porcelain insulator bodies are respectively provided with several threaded holes and several insertion holes. Locking bolts are inserted into the porcelain insulator bodies through the insertion holes. The bottom porcelain insulator body is connected to the threaded hole on the base through the locking bolt. The upper porcelain insulator body is connected to the threaded hole on the bottom porcelain insulator body through the locking bolt. A shielding cap is inserted into the upper end of the top porcelain insulator body.

[0006] Preferably, the shielding cap is conical in shape, and a pull ring is provided at the upper end of the shielding cap.

[0007] Preferably, the top of the inside of the shielding cap is provided with two plug rods, which are inserted into the threaded holes of the uppermost porcelain insulator body.

[0008] Preferably, the outer ring surface of the plug rod is equipped with a plurality of limiting rings, and the outer ring surface of the limiting rings abuts against the inner wall of the threaded hole.

[0009] Preferably, the upper and lower ends of the porcelain insulator body are respectively provided with a boss and a groove, and the base and the shielding cap are respectively provided with matching mounting protrusions and plug slots corresponding to the grooves and bosses.

[0010] Preferably, the threaded holes and insertion holes are arranged in a cross shape, and the inner wall of the insertion holes has a smooth surface.

[0011] Preferably, the bottom of the porcelain insulator body is provided with several limiting rods, which are inserted into the upper end of adjacent sockets.

[0012] The ceramic insulator for high-altitude use proposed in this utility model has the following advantages: 1. In this utility model, the insulator is composed of several porcelain insulator bodies and a base. One porcelain insulator body is placed on top of the base, with its insertion hole corresponding to the threaded hole of the base. The insulator body and base are then tightened together using bolts to form a single unit. Similarly, the remaining porcelain insulator bodies can be connected end-to-end. The specific number of connections depends on actual needs. The final insulator has no exposed bolts or other components. Compared to traditional solutions, this solution has no exposed protruding parts, thus avoiding adverse effects on cable contact and preventing damage from rain or dust. It also simplifies the structure, reduces costs, and improves cost-effectiveness, making it more suitable for widespread use.

[0013] 2. In this utility model, the overall cone shape of the shield cap allows rainwater or other debris to smoothly slide off its outer surface, preventing debris or birds from landing on it. The pull ring facilitates handling and applying force to the shield cap, making installation and removal easy. The plug-in rod facilitates connection between the shield cap and the threaded hole on the porcelain insulator body. The limiting ring ensures a tighter fit between the outer ring of the plug-in rod and the threaded hole, preventing the shield cap from easily detaching from the porcelain insulator body and ensuring its normal use. The protrusions, grooves, mounting protrusions, and plug-in slots provide a turning contact surface when connecting the base to the porcelain insulator body, between porcelain insulator bodies, and between the porcelain insulator body and the shield cap. This makes it less likely for rainwater to enter the threaded hole or plug hole, reducing the damage to the locking bolts caused by rainwater. Attached Figure Description

[0014] Figure 1 This is an isometric schematic diagram of a porcelain insulator for high-altitude use proposed in this utility model; Figure 2 This is a schematic diagram showing the disassembled base and main body of a porcelain insulator for high-altitude use according to the present invention. Figure 3 This is a schematic diagram showing the separation of the shielding cap and the main body of a porcelain insulator for high-altitude use according to the present invention. Figure 4 This is a schematic diagram of the structure of a porcelain insulator for high-altitude use proposed in this utility model.

[0015] In the diagram: 1. Base; 2. Porcelain insulator body; 3. Threaded hole; 4. Insertion hole; 5. Locking bolt; 6. Cover cap; 7. Pull ring; 8. Insertion rod; 9. Limiting ring; 10. Limiting rod. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] Example 1 Reference Figure 1-4A porcelain insulator for high-altitude use includes a base 1 and several porcelain insulator bodies 2 stacked sequentially. The upper surfaces of the base 1 and the porcelain insulator bodies 2 are respectively provided with several threaded holes 3 and several insertion holes 4. Locking bolts 5 are inserted into the porcelain insulator bodies 2 through the insertion holes. The bottom porcelain insulator body 2 is connected to the threaded holes 3 on the base 1 through the locking bolts 5. The upper porcelain insulator body 2 is connected to the threaded holes 3 on the lower porcelain insulator body 2 through the locking bolts 5. A shielding cap 6 is inserted into the upper end of the top porcelain insulator body 2.

[0018] Example 2 Reference Figure 1-4 While all other parts are the same as in Example 1, the difference between this example and Example 1 is that: The shield cap 6 is conical in shape, with a pull ring 7 at the top. Two insertion rods 8 are located at the top inside the shield cap 6, and these rods 8 are inserted into the threaded holes 3 of the uppermost porcelain insulator body 2. Several limiting rings 9 are installed on the outer ring surface of the insertion rods 8, and the outer ring surface of the limiting rings 9 abuts against the inner wall of the threaded holes 3. Because the shield cap 6 is conical in shape, rainwater or other debris falling from the outside can smoothly slide down the outer surface of the shield cap 6, thus preventing debris or birds from landing. The pull ring 7 on the cover cap 6 makes it easy for personnel to hold and apply force to the cover cap 6, facilitating its installation and removal. The plug rod 8 facilitates the connection between the cover cap 6 and the threaded hole 3 on the porcelain insulator body 2. The limiting ring 9 ensures a tighter fit between the outer ring of the plug rod 8 and the threaded hole 3, preventing the cover cap 3 from easily falling off the porcelain insulator body 2 and ensuring the normal use of the cover cap 6.

[0019] The upper and lower ends of the porcelain insulator body 2 are respectively provided with protrusions and grooves. The base 1 and the shielding cap 6 are respectively provided with matching mounting protrusions and insertion slots corresponding to the grooves and protrusions. The setting of the protrusions, grooves, mounting protrusions and insertion slots provides a turning contact surface when the base 1 is connected to the porcelain insulator body 2, between porcelain insulator bodies 2, and between the porcelain insulator body 2 and the shielding cap 6. This makes it more difficult for external rainwater to enter the threaded hole 3 or the insertion hole 4, thereby reducing the damage of external rainwater to the locking bolt 4 and improving the stability of the insulator during use. The threaded hole 3 and the insertion hole 4 are arranged in a cross shape. The inner wall has a smooth surface. Since the threaded holes 3 and the insertion holes 4 are arranged in a cross shape, the force is more even when the porcelain insulator body 2 is connected, and it is also convenient for the components to be connected to each other. The bottom of the porcelain insulator body 2 is provided with several limiting rods 10. The limiting rods 10 are inserted into the upper end of the adjacent insertion holes 4. The setting of the limiting rods 10 means that in addition to the connection and limitation of the locking bolts 4, the base 1 and the porcelain insulator body 2, the porcelain insulator body 2 and the porcelain insulator body 2 and the shielding cap 6 are also limited by the limiting rods 10, so that the components have the resistance to replacement when subjected to horizontal forces.

[0020] Operating principle and advantages: In the use of this utility model, since the insulator is composed of several porcelain insulator bodies 2 and a base 1, the operator first places one porcelain insulator body 2 on the upper end of the base 1, with the insertion hole 4 of this porcelain insulator body 2 corresponding to the threaded hole 3 of the base 1. That is, by tightening the locking bolt 4, this porcelain insulator body 2 and the base 1 are integrated into a whole. Similarly, the remaining porcelain insulator bodies 2 can be connected end to end in sequence. The specific number of connections depends on actual needs. The insulator with the final connection has no exposed bolts or other components on the outside. Therefore, compared with the traditional solution, this solution has no exposed protruding components on the outside, so it will not have an adverse effect on the cable contact. It also avoids the phenomenon of external rain or sand and dust damaging it. It simplifies the structure, reduces costs, and improves cost performance, thus facilitating its widespread use.

[0021] It should be further explained that, due to the conical shape of the shield cap 6, rainwater or other debris falling from the outside can smoothly slide off the outer surface of the shield cap 6, thus preventing debris or birds from landing on the shield cap 6. The pull ring 7 facilitates the gripping and applying force to the shield cap 6, making it easy for personnel to install and remove the shield cap 6. The plug rod 8 facilitates the connection between the shield cap 6 and the threaded hole 3 on the porcelain insulator body 2. The limiting ring 9 ensures a tighter fit between the outer ring of the plug rod 8 and the threaded hole 3, preventing the shield cap 6 from easily falling off the porcelain insulator body 2, thus ensuring the normal use of the shield cap 6. The protrusions, grooves, mounting protrusions, and plug grooves ensure that the base 1 and the porcelain insulator body 2, as well as the porcelain insulator body, are properly connected. When the connection between the base 1 and the porcelain insulator body 2, and between the porcelain insulator body 2 and the shielding cap 6, is made with a turning contact surface, it makes it less likely for external rainwater to enter the threaded hole 3 or the insertion hole 4, thereby reducing the damage of external rainwater to the locking bolt 4 and improving the stability of the insulator during use. Since the threaded hole 3 and the insertion hole 4 are arranged in a cross shape, the force is more even when the porcelain insulator body 2 is connected, and it is also convenient for the connection between the components. The setting of the limiting rod 10 means that in addition to the connection and limitation of the locking bolt 4, the connection between the base 1 and the porcelain insulator body 2, between the porcelain insulator body 2 and the porcelain insulator body 2, and between the porcelain insulator body 2 and the shielding cap 6, the connection between the base 1 and the porcelain insulator body 2, between the porcelain insulator body 2 and the porcelain insulator body 2 and the shielding cap 6 is also limited by the limiting rod 10, thereby giving the components resistance to replacement when subjected to horizontal forces.

[0022] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A porcelain insulator for high altitude use, comprising a base (1) and a plurality of porcelain insulator bodies (2) placed one on top of the other in a stack, characterized in that, The upper surfaces of the base (1) and the porcelain insulator body (2) are provided with several threaded holes (3) and several insertion holes (4). The porcelain insulator body (2) is fitted with locking bolts (5) through the insertion holes. The lowest porcelain insulator body (2) is connected to the threaded holes (3) on the base (1) through the locking bolts (5). The upper porcelain insulator body (2) is connected to the threaded holes (3) on the lower porcelain insulator body (2) through the locking bolts (5). The uppermost porcelain insulator body (2) is fitted with a shielding cap (6) at its upper end.

2. A porcelain insulator for high altitude use according to claim 1, characterized in that The shielding cap (6) is conical, and the upper end of the shielding cap (6) is provided with a pull ring (7).

3. A porcelain insulator for high altitude use according to claim 1, wherein The top of the shield cap (6) is provided with two plug rods (8), which are inserted into the threaded hole (3) of the uppermost porcelain insulator body (2).

4. A porcelain insulator for high altitude use according to claim 3, wherein The outer ring surface of the plug rod (8) is equipped with several limiting rings (9), and the outer ring surface of the limiting rings (9) abuts against the inner wall of the threaded hole (3).

5. A porcelain insulator for high altitude use according to claim 1, wherein The upper and lower ends of the porcelain insulator body (2) are respectively provided with protrusions and grooves, and the base (1) and the shielding cap (6) are respectively provided with matching mounting protrusions and plug slots corresponding to the grooves and protrusions.

6. A porcelain insulator for high altitude use according to claim 1, wherein The threaded hole (3) and the insertion hole (4) are arranged in a cross shape, and the inner wall of the insertion hole (4) is a smooth surface.

7. A porcelain insulator for high altitude use according to claim 1, wherein The bottom of the porcelain insulator body (2) is provided with several limiting rods (10), which are inserted into the upper end of the adjacent socket (4).

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