Lightning protection insulator

Abstract

The utility model discloses a lightning protection insulator relates to insulator technical field, including core rod and a plurality of insulator umbrella skirt, the upper end fixedly connected with the mounting head of core rod, the lower end fixedly connected with the steel foot of core rod, the outer surface fixedly connected with the insulating arc guide stick of mounting head. The utility model discloses through pulling arc -shaped handle and half -circular conical column, two half -circular mounting ring and half -circular conical column are separated, and will drive connecting assembly from the inside of the mouth to remove simultaneously, at this moment will extrude the state of deformation contraction to connecting assembly, after putting the half -circular mounting ring of replacement in the inside of annular mounting groove, and push the connecting assembly and begin extruding deformation and insert in the inside of the mouth, when connecting assembly is completely inserted, connecting assembly overall structure resets, and realizes the inside of core rod and is stuck, through the setting of this structure, the quick disassembly replacement effect of convenient to insulator umbrella skirt, the operation of the maintenance worker is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of insulator technology, specifically to a lightning protection insulator. Background Technology

[0002] Lightning insulators are lightning protection devices used in power distribution lines. They are mainly used to limit the impact of lightning overvoltages on the lines and protect the safety of power grid equipment. Their core function is to release the overvoltage energy by forming a short-circuit path between the arc-guiding fork and the grounding electrode when the lightning overvoltage exceeds a set threshold, thus preventing the conductor from burning out. The insulator consists of a glass fiber resin core rod (or core tube), an organic material sheath, an insulating arc-guiding rod, and skirts, among other components.

[0003] The existing technology has the following problems:

[0004] In current lightning protection insulators, the core rod and several insulator skirts are designed as an integral structure. When one of the insulator skirts cracks or is damaged, the entire lightning protection insulator needs to be disassembled and replaced. When maintenance workers disassemble and replace the entire lightning protection insulator, the operation is laborious and cumbersome, making it inconvenient for maintenance workers to operate.

[0005] Therefore, we need a lightning protection insulator to solve the above problems. Utility Model Content

[0006] This invention provides a lightning protection insulator to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0008] A lightning protection insulator includes a core rod and several insulator skirts. An installation head is fixedly connected to the upper end of the core rod, and a steel foot is fixedly connected to the lower end of the core rod. An insulating arc-starting rod is fixedly connected to the outer surface of the installation head.

[0009] The outer surface of the core rod is provided with several annular mounting grooves. Two insertion ports are provided on the left and right sides of the inner wall of each of the several annular mounting grooves. Each of the several insulator skirts is composed of two semi-circular mounting rings, a semi-conical column, and a connecting component. The semi-circular mounting rings, semi-conical columns, and connecting components on the left and right sides are mirror images of each other. The inner wall of the semi-circular mounting rings on the left and right sides is fixedly connected to the surface of the connecting component. The connecting components are provided in groups of several. Each group of connecting components includes a rubber block, an elastic plate, and a semi-circular blocking block.

[0010] A further improvement of this utility model is that: the upper surface of the left and right semi-conical columns is provided with a communicating semi-circular opening, and the upper part of the inner wall of the semi-circular opening is fixedly connected to the lower part of the outer surface of the semi-circular mounting ring.

[0011] A further improvement of this utility model is that two arc-shaped handles are fixedly connected to the lower surface of the left and right semi-conical columns in a mirror image.

[0012] A further improvement of this utility model is that: the outer surface of the semi-circular mounting rings on the left and right sides corresponds to the inside of the annular mounting groove, the outer surface of the mandrel corresponds to the inner wall of the semi-circular opening, and the outer surfaces of the connecting components on the left and right sides are respectively inserted into the inside of the socket.

[0013] A further improvement of this utility model is that: four elastic plates and four semi-circular blocking blocks are provided, the surface of the elastic plate is fixedly connected to the surface of the semi-circular blocking block, and the length of the semi-circular blocking block is greater than the width of the elastic plate.

[0014] A further improvement of this utility model is that the upper and lower semicircular blocking blocks are mirror images of each other, and the left and right semicircular blocking blocks are mirror images of each other, with the outer surface arc of the semicircular blocking blocks engaging with the inner wall of the core rod.

[0015] A further improvement of this utility model is that: an installation port is provided in the middle of the end face of the rubber block, and a fixing block is fixedly connected inside the installation port.

[0016] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0017] This utility model provides a lightning protection insulator. When one of the insulator skirts is damaged and needs to be replaced, the two semi-circular mounting rings and the semi-conical column can be separated by pulling the arc-shaped handle and the semi-conical column. At the same time, the connecting component will be moved out of the socket. At this time, the connecting component will be squeezed and deformed. After the replaced semi-circular mounting ring is placed inside the annular mounting groove, the connecting component is pushed into the socket and begins to be squeezed and deformed. When the connecting component is fully inserted, the overall structure of the connecting component is reset and the core rod is locked inside. This structure facilitates the quick disassembly and replacement of the insulator skirt, making it easier for maintenance workers to operate. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2This is a schematic diagram of the annular mounting groove and insertion structure in the mandrel of this utility model;

[0020] Figure 3 This is an exploded view of the insulator skirt of this utility model;

[0021] Figure 4 This is a schematic diagram of the bottom structure of the insulator skirt after disassembly.

[0022] Figure 5 This is an exploded view of the rubber block and fixing block in the connecting assembly of this utility model;

[0023] Figure 6 A schematic diagram of the connection component of this utility model being inserted into the socket and locked inside the core rod;

[0024] Figure 7 This is an enlarged structural diagram of point A of this utility model.

[0025] In the diagram: 1. Core rod; 11. Annular mounting groove; 12. Socket; 2. Insulator skirt; 21. Semi-circular mounting ring; 22. Semi-conical column; 23. Connecting assembly; 231. Rubber block; 232. Mounting port; 233. Elastic plate; 234. Semi-circular blocking block; 235. Fixing block; 24. Semi-circular through-hole; 25. Arc handle; 3. Mounting head; 4. Steel foot; 5. Insulating arc-starting rod. Detailed Implementation

[0026] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0027] Example 1: As Figures 1 to 7 As shown, this utility model provides a lightning protection insulator, comprising a core rod 1, several insulator skirts 2, a mounting head 3, steel feet 4, and an insulating arc-starting rod 5. The core rod 1 serves as the main structure, with the mounting head 3 fixedly connected to its upper end and the steel feet 4 fixedly connected to its lower end. The insulating arc-starting rod 5 is fixed to the outer surface of the mounting head 3 by welding or fixing bolts, etc., to provide a discharge channel during lightning or arc faults, preventing equipment damage.

[0028] The outer surface of the core rod 1 has several annular mounting grooves 11 evenly opened along the axial direction. Two insertion ports 12 are symmetrically opened in the middle of the inner wall of each annular mounting groove 11. The depth and width of the insertion ports 12 are adapted to the size of the subsequent connecting component 23, and the inner wall shape of the insertion port 12 is smaller than the outer surface shape of the connecting component 23 in the subsequent structure, so that the connecting component 23 has a squeezing feature after being inserted into the insertion port 12. When the connecting component 23 is fully inserted into the insertion port 12, the connecting component 23 resets, realizing the function of locking and limiting.

[0029] Example 2: Figures 1 to 7 As shown, the insulator skirt 2 adopts a split structure, consisting of two semi-circular mounting rings 21, a semi-conical column 22, and a connecting assembly 23. The two semi-circular mounting rings 21 and the semi-conical column 22 are designed in mirror symmetry, and the connecting assembly 23 is fixedly connected to the middle of the inner wall of the semi-circular mounting ring 21. A semi-circular opening 24 is opened in the middle of the upper surface of the semi-conical column 22. The upper part of the inner wall of the semi-circular opening 24 is fixedly connected to the lower part of the outer surface of the semi-circular mounting ring 21, and the two are integrally formed to form part of the main structure of the skirt.

[0030] The outer surfaces of the left and right semi-circular mounting rings 21 correspond to the interior of the annular mounting groove 11. During installation, the semi-circular mounting rings 21 can be placed inside the annular mounting groove 11 to facilitate the insertion of the connecting component 23 into the socket 12. The outer surface of the core rod 1 corresponds to the inner wall of the semi-circular through-hole 24, and the two are in a close fit. The outer surfaces of the left and right connecting components 23 are respectively inserted into the interior of the socket 12. After the insulator skirt is installed, waterproof adhesive needs to be applied to the gaps between the two semi-circular mounting rings 21, the semi-conical column 22, and the gap between the insulator skirt 2 and the core rod 1 to prevent rainwater from entering the gaps during rain.

[0031] To facilitate installation, two arc-shaped handles 25 are fixedly connected to the lower surfaces of the left and right semi-conical columns 22 in a mirror-like manner. The arc-shaped handles 25 and the semi-conical columns 22 are integrally formed.

[0032] Example 3: Figures 1 to 7As shown, each connecting assembly 23 includes a rubber block 231, an elastic plate 233, and a semi-circular blocking block 234. Four elastic plates 233 and four semi-circular blocking blocks 234 are provided. Through the cooperation of the elastic plates 233 and the semi-circular blocking blocks 234, the insertion of the socket 12 can be achieved by locking it in place. The surface of the elastic plate 233 is fixedly connected to the surface of the semi-circular blocking block 234. The length of the semi-circular blocking block 234 is greater than the width of the elastic plate 233. This structure allows for a large area of ​​locking by the semi-circular blocking block 234 after insertion into the socket 12, facilitating better positioning. The upper and lower semi-circular blocking blocks 234 are mirror images of each other, as are the left and right semi-circular blocking blocks 234. The four sides of the insertion port 12 can be locked inside the core rod 1 after insertion, thus improving the limiting function. The outer arc of the semi-circular blocking block 234 is engaged with the inner wall of the core rod 1. The end face of the rubber block 231 has an installation port 232 in the middle. The installation port 232 is fixedly connected to the inside of the installation port 232. The setting of the fixing block 235 strengthens the stable limiting of the rubber block 231, so as to prevent the rubber block 231 from bending and enhance the connection stability. The rubber block 231 provides a certain support for the elastic plate 233, so that the elastic plate 233 will not be easily bent. In addition, the elastic plate 233 and the semi-circular blocking block 234 are made of PPS engineering plastic.

[0033] Working principle: During installation, align the two semi-circular mounting rings 21 with the annular mounting groove 11 of the core rod 1 and push them, so that the inner wall of the semi-circular opening 24 fits against the outer surface of the core rod 1. At this time, the semi-circular blocking block 234 of the connecting assembly 23, under the influence of the insertion port 12, deforms by squeezing the elastic plate 233 and the rubber block 231. When the connecting assembly 23 is fully inserted into the insertion port 12, the elastic plate 233 and the rubber block 231 return to their deformed state, so that the arc-shaped outer surface of the semi-circular blocking block 234 forms a snap-fit ​​with the inner wall of the core rod 1. Repeat the above steps to complete the installation of all insulator skirts 2, and then apply waterproof adhesive to the gaps.

[0034] When disassembling, the waterproof adhesive is destroyed by using solvents or heating and drying. Then, the arc-shaped handle 25 and the semi-conical column 22 are pulled. Due to the influence of the socket 12, the semi-circular blocking block 234 is squeezed while being pulled, causing the elastic plate 233 and the rubber block 231 to be squeezed and deformed, and completely enter the interior of the socket 12, thereby achieving quick disassembly.

[0035] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A lightning protection insulator, comprising a core rod (1) and a plurality of insulator skirts (2), characterized in that: The upper end of the core rod (1) is fixedly connected to an installation head (3), the lower end of the core rod (1) is fixedly connected to a steel foot (4), and an insulating arc-starting rod (5) is fixedly connected to the outer surface of the installation head (3). The outer surface of the core rod (1) is provided with several annular mounting grooves (11). Two insertion ports (12) are opened on the left and right sides of the inner wall of each of the several annular mounting grooves (11). Each of the several insulator skirts (2) is composed of two semi-circular mounting rings (21), a semi-conical column (22) and a connecting component (23). The semi-circular mounting rings (21), the semi-conical column (22) and the connecting component (23) on the left and right sides are mirror images of each other. The inner wall of the semi-circular mounting rings (21) on the left and right sides is fixedly connected to the surface of the connecting component (23). The connecting component (23) is a group of several. Each group of the connecting component (23) includes a rubber block (231), an elastic plate (233) and a semi-circular blocking block (234).

2. The lightning protection insulator according to claim 1, characterized in that: The upper surface of the left and right semi-conical columns (22) is provided with a semi-circular opening (24) that communicates with each other. The upper part of the inner wall of the semi-circular opening (24) is fixedly connected to the lower part of the outer surface of the semi-circular mounting ring (21).

3. A lightning protection insulator according to claim 1, characterized in that: The lower surfaces of the left and right semi-conical columns (22) are mirror-fixed with two arc-shaped handles (25).

4. A lightning protection insulator according to claim 1, characterized in that: The outer surfaces of the semi-circular mounting rings (21) on the left and right sides correspond to the interior of the annular mounting groove (11), the outer surface of the mandrel (1) corresponds to the inner wall of the semi-circular opening (24), and the outer surfaces of the connecting components (23) on the left and right sides are respectively inserted into the interior of the socket (12).

5. A lightning protection insulator according to claim 1, characterized in that: Four elastic plates (233) and four semi-circular blocking blocks (234) are provided. The surface of the elastic plate (233) is fixedly connected to the surface of the semi-circular blocking block (234). The length of the semi-circular blocking block (234) is greater than the width of the elastic plate (233).

6. A lightning protection insulator according to claim 5, characterized in that: The upper and lower semicircular blocking blocks (234) are mirror images of each other, and the left and right semicircular blocking blocks (234) are mirror images of each other. The outer arc of the semicircular blocking blocks (234) is engaged with the inner wall of the core rod (1).

7. A lightning protection insulator according to claim 1, characterized in that: The rubber block (231) has an installation port (232) in the middle of its end face, and a fixing block (235) is fixedly connected inside the installation port (232).

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