Combined insulator

Abstract

The utility model relates to the technical field of insulators, and discloses a combined insulator, which comprises two insulator bodies, skirt blocks are fixedly connected outside the insulator bodies, square shells are fixedly connected to the inner walls of the left side and the right side of the insulator bodies, sliding blocks are slidably connected to the interiors of the square shells, and the sliding blocks are fixedly connected to the inner walls of the left side and the right side of the insulator bodies. Two sliding blocks are fixedly connected to the two ends of the insulator body, clamping blocks are fixedly connected to the sides, close to each other, of the two sliding blocks, a sliding rod is slidably connected to the interior of the insulator body, a second spring is fixedly connected to the rear side of the sliding rod, a U-shaped plate is fixedly connected to the exterior of the sliding rod, and a bottom plate is fixedly connected to the bottom of the insulator body. According to the utility model, rapid connection, fixation and disassembly of the two insulator bodies are realized, and in insulator installation and maintenance work of an electric power system, a lot of time and labor cost can be saved, power failure time can be reduced, operation reliability of the electric power system can be improved, and work and maintenance efficiency can be increased.

Description

Technical Field

[0001] This utility model relates to the field of insulator technology, and in particular to a combined insulator. Background Technology

[0002] An insulator is a special type of insulating component primarily used in overhead transmission lines. It withstands voltage and mechanical stress between conductors at different potentials or between a conductor and a grounding component. Insulators typically consist of two main parts: the insulating element and the connecting hardware. They come in many types, including porcelain insulators, glass insulators, and composite insulators, and can be classified in various ways according to different standards. The primary function of an insulator is to provide electrical insulation and mechanical fixation, and to operate long-term under specified operating voltage, mechanical load, and environmental conditions without significant deterioration.

[0003] Chinese patent CN201921868934.1 discloses a novel composite porcelain insulator, including a connecting rod, a threaded sleeve screwed onto the outside of the connecting rod, a shed skirt provided on the outside of the threaded sleeve, a screw-on block provided at both ends of the connecting rod, a connecting cap fixedly connected to both ends of the two screw-on blocks, a buffer plate fitted onto one of the screw-on blocks, a round hole provided inside the buffer plate, and a retaining sleeve fixedly connected to the outside of both connecting caps.

[0004] However, the porcelain insulators in this technical solution are not convenient for quick assembly and disassembly, and their overall protective performance is poor, making them inconvenient for later maintenance and replacement. Therefore, a combined insulator is proposed to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a combined insulator that uses a locking block, a U-shaped plate, a connecting frame, and a spring in conjunction with a locking slot to achieve quick installation and disassembly, thus solving the problem of insulators being inconvenient for later maintenance.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A composite insulator includes two insulator bodies. Skirts are fixedly connected to the outside of each insulator body. Square shells are fixedly connected to the inner walls of both sides of each insulator body. Sliding blocks are slidably connected inside each square shell. Locking blocks are fixedly connected to adjacent sides of each sliding block. A sliding rod is slidably connected inside each insulator body. A second spring is fixedly connected to the rear side of the sliding rod. A U-shaped plate is fixedly connected to the outside of the sliding rod. A base plate is fixedly connected to the bottom of each insulator body. A connecting frame is fixedly connected to the bottom end of the base plate. Protective components for enhancing the durability of the insulator are provided inside each insulator body.

[0008] As a further description of the above technical solution:

[0009] The protective component includes two sealing rings. The bottom end of the sealing rings is fixedly connected to the top end of the insulator body. An insulating layer is provided inside the insulator body. A protective layer is fixedly connected to the outside of the insulating layer. Semicircular grooves are provided on both the front and rear sides of the top of the insulator body. Semicircular blocks are fixedly connected to both the front and rear sides of the bottom of the insulator body.

[0010] As a further description of the above technical solution:

[0011] Spring 1 is fixedly connected to the far side of each of the two sliding blocks, and the far side of the two spring 1 is fixedly connected to the far side inner wall of the two square shells.

[0012] As a further description of the above technical solution:

[0013] The rear end of the second spring is fixedly connected to the rear inner wall of the insulator body, and the rear side of the U-shaped plate is in contact with the outside of the two locking blocks;

[0014] As a further description of the above technical solution:

[0015] A pressing plate is fixedly connected to the front end of the sliding rod, and the rear side of the pressing plate is in contact with the front side of the insulator body;

[0016] As a further description of the above technical solution:

[0017] The connecting frame has slots on both the left and right sides inside, and the outer side of the card block engages with the inner wall of the slot.

[0018] As a further description of the above technical solution:

[0019] Both sides of the base plate are fixedly connected with protrusions, and both sides of the insulator body are provided with sliding grooves. The outer wall of the protrusion is slidably connected to the inner wall of the sliding groove.

[0020] As a further description of the above technical solution:

[0021] The insulating layer is made of a composite material of ceramic and polymer, the protective layer is made of fluorocarbon coating, and the outer wall of the semicircular block engages with the inner wall of the semicircular groove.

[0022] The beneficial effects of this invention are as follows:

[0023] (1) When connecting two insulator bodies, the connecting frame can be accurately moved downwards by the cooperation of the protrusion and the sliding groove. The downward movement of the connecting frame squeezes the locking block, and the locking block moves into the square shell to compress the first spring. When the connecting frame reaches the bottom, the pressure of the first spring causes the locking block to engage with the locking groove of the connecting frame, thus completing the fixation. During disassembly, pressing the pressing plate drives the sliding rod to move into the insulator body. The second spring is squeezed, and the U-shaped plate on the sliding rod moves backward to squeeze the locking block, causing it to move to both sides to release the engagement. This realizes the rapid connection, fixation and disassembly of the two insulator bodies. In the installation and maintenance of insulators in the power system, it can save a lot of time and labor costs, reduce power outage time, improve the operational reliability of the power system, and increase work and maintenance efficiency.

[0024] (2) The sealing ring is located between the two insulator bodies. It is made of silicone rubber, which has good elasticity, weather resistance, and insulation, preventing impurities from entering the connection and ensuring insulation. The insulation layer is a composite material of ceramic and polymer, combining the properties of both to prevent current leakage. The protective layer is a fluorocarbon coating with low surface energy, which is anti-fouling, weather-resistant, and protects the interior. The semi-circular block and semi-circular slot engage to increase torque resistance. The cooperation of all components makes the insulator stable and durable, maintaining insulation and structural stability in complex outdoor environments, reducing power failures, extending service life, and reducing replacement costs.

[0025] In summary, the present invention has the advantages of easy assembly, installation and disassembly, and good protective performance. Attached Figure Description

[0026] Figure 1 This is a perspective view of a combined insulator proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the structure of the insulator body of a combined insulator proposed in this utility model;

[0028] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0029] Figure 4 This is a schematic diagram of the structure of the base plate of a combined insulator proposed in this utility model. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] Example 1

[0033] Reference Figure 1 , Figure 2 and Figure 3 This utility model provides an embodiment of a combined insulator, comprising two insulator bodies 1. A skirt block 16 is fixedly connected to the outside of each insulator body 1. Square shells 2 are fixedly connected to the inner walls of both sides of each insulator body 1. The insulator body 1 is the basic structure of the entire combined insulator, providing an attachment base for other components, such as the skirt block 16 and the square shells 2. The connection and fixation between the two insulator bodies 1 is crucial for the overall functionality, affecting the stability and efficiency of the overall structure. The skirt block 16 primarily increases the creepage distance, preventing flashover on the insulator surface. Sliding blocks 3 are slidably connected inside the square shells 2. Springs 4 are fixedly connected to the opposite sides of the two sliding blocks 3, and the opposite sides of the two springs 4 are fixedly connected to the opposite inner walls of the two square shells 2. Two sliding blocks 3 are fixedly connected to a locking block 5 on their adjacent sides. The square shell 2 provides a sliding space for the sliding blocks 3 and is the place where the locking block 5 and spring 4 are installed. During the connection and separation of the insulator body 1, the components inside the square shell 2 work together to play a key role in controlling the locking and separation.

[0034] A sliding rod 6 is slidably connected inside the insulator body 1. A spring 7 is fixedly connected to the rear side of the sliding rod 6, and the rear end of the spring 7 is fixedly connected to the inner rear wall of the insulator body 1. A U-shaped plate 8 is fixedly connected to the outside of the sliding rod 6, and the rear side of the U-shaped plate 8 contacts the outside of the two locking blocks 5. A pressing plate 9 is fixedly connected to the front end of the sliding rod 6, and the rear side of the pressing plate 9 contacts the front side of the insulator body 1. The pressing plate 9 is the direct component operated by the user. Pressing it initiates the separation operation, which is simple and convenient. When the pressing plate 9 is pressed, the sliding rod 6 moves into the insulator body 1, causing the U-shaped plate 8 to move and thus press the locking blocks 5. After releasing the pressing plate 9, it can return to its original position under the action of the spring 7. It is an important component for realizing the rapid separation of the insulator body 1. When the sliding rod 6 moves into the insulator body 1, the U-shaped plate 8 moves backward and squeezes the locking block 5, causing the locking block 5 to move to both sides, releasing the engagement with the slot of the connecting frame 11, and realizing the separation of the two insulator bodies 1.

[0035] A base plate 10 is fixedly connected to the bottom of the insulator body 1, and a connecting frame 11 is fixedly connected to the bottom end of the base plate 10. The base plate 10 provides support for the connecting frame 11. Slots are provided on both the left and right sides of the interior of the connecting frame 11, and the outer side of the locking block 5 engages with the inner wall of the slot. The movement of the connecting frame 11 moves the locking block 5 into the square shell 2, compressing the spring 4. Then, the pressure generated by the spring 4 itself causes the locking block 5 to engage with the slot of the connecting frame 11, ensuring the stability of the connection between the two insulator bodies 1. Protrusions 13 are fixedly connected to both the left and right sides of the base plate 10, and sliding grooves 14 are provided on both the left and right sides of the interior of the insulator body 1. The outer wall of the protrusion 13 slides against the inner wall of the sliding groove 14. The protrusion 13 and the sliding groove 14 cooperate for positioning, guiding the connecting frame 11 to move accurately during the connection process, ensuring the accurate relative position of each component during the connection process, and playing a positioning and guiding role in the entire connection and fixing operation.

[0036] Reference Figure 1 , Figure 2 and Figure 4The insulator body 1 has an internal protective component to enhance its durability. This component includes two sealing rings 17, with their bottom ends fixedly connected to the top of the insulator body 1. The sealing rings 17 are located between the two insulator bodies 1 and are made of silicone rubber. Their good elasticity fills the gap between the two insulator bodies 1, and their weather resistance and insulation prevent moisture and dust from entering the connection area, ensuring the insulation performance of the connection. The insulator body 1 also has an internal insulation layer 18, made of a composite material of ceramic and polymer. The high insulation strength and heat resistance of the ceramic, combined with the flexibility and impact resistance of the polymer, effectively prevent current leakage and ensure that the current is transmitted along the predetermined path, playing a crucial role in guaranteeing the insulation function of the insulator. The insulation layer 18 is externally fixedly connected to a protective layer 19, made of fluorocarbon coating. Its extremely low surface energy makes it difficult for contaminants to adhere, and its good weather resistance resists ultraviolet radiation, acid rain, and other corrosive substances, protecting the internal insulation layer 18 and the insulator body 1, and extending the insulator's service life. The top front and rear sides of the insulator body 1 are provided with semi-circular grooves 15, and the bottom front and rear sides of the insulator body 1 are fixedly connected with semi-circular blocks 12. The outer wall of the semi-circular block 12 is engaged with the inner wall of the semi-circular groove 15 to increase the anti-torque force between the two insulator bodies 1, prevent the two insulator bodies 1 from rotating or displacing relative to each other during use, and ensure the overall structure is stable and reliable.

[0037] Work steps

[0038] Step 1: When it is necessary to connect and fix two insulator bodies 1, the protrusion 13 and the slide groove 14 are positioned to allow the connecting frame 11 under the base plate 10 to move downward. The downward movement of the connecting frame 11 presses against the locking block 5, causing the locking block 5 to move into the square shell 2 and press against the spring 4. When the connecting frame 11 reaches its bottom, the pressure generated by the compressed spring 4 causes the locking groove on the connecting frame 11 to engage with the locking block 5, thus completing the fixation between the two insulator bodies 1. When it is necessary to separate the two connected insulator bodies 1... When separating, pressing the pressing plate 9 moves the sliding rod 6 into the insulator body 1, compressing the spring 7. At the same time, the U-shaped plate 8 on the sliding rod 6 moves backward and compresses the locking block 5, causing the locking block 5 to move to both sides to release the locking groove in the connecting frame 11. This allows the two insulator bodies 1 to separate. Then, releasing the pressing plate 9, the sliding rod 6 returns to its original position due to the pressure generated by the compression of the spring 7. This achieves quick connection, fixation, and disassembly of the two insulator bodies 1, increasing work and maintenance efficiency.

[0039] Step 2: The sealing ring 17 is made of silicone rubber and is located between the two insulator bodies 1. Its good elasticity, weather resistance, and insulation properties provide a seal, preventing moisture and dust from entering the connection and ensuring insulation performance. The insulation layer 18 is a composite material of ceramic and polymer, wrapped around key parts of the insulator body 1. The high insulation strength and heat resistance of the ceramic, combined with the flexibility and impact resistance of the polymer, prevent current leakage and ensure current transmission along the predetermined path. The protective layer 19 is made of fluorocarbon coating material and covers the outer layer of the insulator. Its extremely low surface energy resists contaminant adhesion and its good weather resistance protects against UV radiation, acid rain, and other erosion, protecting the internal structure. The semi-circular block 12 and the semi-circular groove 15 interlock to increase the torque resistance between the two insulator bodies 1, preventing relative rotation or displacement and ensuring overall structural stability. These components work together to enhance the performance of the insulator body 1.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A combined insulator comprising two insulator bodies (1), characterized in that: The outer part of the insulator body (1) is fixedly connected with a skirt block (16), the inner walls of the left and right sides of the insulator body (1) are fixedly connected with square shells (2), the interiors of the square shells (2) are slidably connected with sliding blocks (3), the proximal sides of the two sliding blocks (3) are fixedly connected with clamping blocks (5), the interior of the insulator body (1) is slidably connected with a sliding rod (6), the rear side of the sliding rod (6) is fixedly connected with a spring (7), the exterior of the sliding rod (6) is fixedly connected with a U-shaped plate (8), the bottom of the insulator body (1) is fixedly connected with a bottom plate (10), the bottom end of the bottom plate (10) is fixedly connected with a connecting frame (11), and the interior of the insulator body (1) is provided with a protection assembly for enhancing the durability of the insulator.

2. A composite insulator according to claim 1, characterized in that: The protection assembly comprises two sealing rings (17), the bottom ends of the sealing rings (17) are fixedly connected to the top end of the insulator body (1), the interior of the insulator body (1) is provided with an insulating layer (18), the exterior of the insulating layer (18) is fixedly connected with a protective layer (19), the top of the insulator body (1) is provided with semicircular grooves (15) on the front and rear sides, and the bottom of the insulator body (1) is fixedly connected with semicircular blocks (12) on the front and rear sides.

3. A composite insulator according to claim 1, characterized in that: The distal sides of the two sliding blocks (3) are fixedly connected with springs (4), and the distal sides of the two springs (4) are fixedly connected to the distal inner walls of the two square shells (2).

4. A composite insulator according to claim 1, characterized in that: The rear end of the spring (7) is fixedly connected to the rear inner wall of the insulator body (1), and the rear side of the U-shaped plate (8) is in contact with the exterior of the two clamping blocks (5).

5. A composite insulator according to claim 1, characterized in that: The front end of the sliding rod (6) is fixedly connected with a pressing plate (9), and the rear side of the pressing plate (9) is in contact with the front side of the insulator body (1).

6. A composite insulator according to claim 1, characterized in that: The interiors of the left and right sides of the connecting frame (11) are provided with clamping grooves, and the exterior of the clamping block (5) is clamped in the inner wall of the clamping groove.

7. A composite insulator according to claim 1, characterized in that: The left and right sides of the bottom plate (10) are fixedly connected with protruding blocks (13), the left and right sides of the interior of the insulator body (1) are provided with sliding grooves (14), and the outer wall of the protruding block (13) is slidably connected to the inner wall of the sliding groove (14).

8. A composite insulator according to claim 2, characterized in that: The material of the insulating layer (18) is a ceramic and high-molecular polymer composite material, the material of the protective layer (19) is a fluorocarbon coating, and the outer wall of the semicircular block (12) is clamped in the inner wall of the semicircular groove (15).

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