AC disc suspension porcelain composite insulator

Abstract

This invention provides an AC disc-shaped suspension porcelain composite insulator, comprising a core rod body with a groove at one end communicating with the outside; a locking assembly is installed within the groove; a hollow composite insulator body is locked onto the core rod body via the locking assembly; wherein the locking assembly includes a housing installed within the groove, a movable block sliding within the housing, a connecting plate mounted on the movable block, a locking lock with a groove, and a drive plate mounted on the connecting plate. This invention, by providing a groove with a locking component on the core rod body, in conjunction with the hollow composite insulator body, achieves rapid locking and installation of the insulator. The structure is simple, operation is convenient, and the cooperation of the movable block, connecting plate, drive plate, and pressing rod inside the locking assembly, utilizing the elasticity of a spring, enables the extension and retraction control of the locking lock, facilitating the disassembly, assembly, and maintenance of the insulator.

Description

Technical Field

[0001] This invention relates to the field of hollow composite insulator technology, and particularly to AC disc suspension porcelain composite insulators. Background Technology

[0002] Hollow composite insulators are a special type of insulation control, mainly composed of an insulating core rod inner cylinder, end flanges, and silicone rubber sheds. They are widely used in power systems such as overhead transmission lines. They are installed by connecting the end flange at the bottom of the insulating core rod inner cylinder to a support frame, and can support the conductor during use.

[0003] In existing hollow composite insulators, the insulators are installed solely through the bottom flange during conductor support, making it difficult to guarantee installation strength. Under special weather conditions, such as strong winds after icing, high-voltage conductors may gallop. When the conductors gallop, they generate large-scale swinging and twisting, applying huge dynamic tensile and torque forces to the hollow composite insulators. This may cause structural deformation of the insulators, thereby reducing their service life. To address the shortcomings of existing technology, we propose an easy-to-install hollow composite insulator to solve the above problems. Summary of the Invention

[0004] In view of this, the present invention aims to provide an AC disc-type suspension porcelain composite insulator to solve or alleviate the technical problems existing in the prior art.

[0005] The technical solution of this invention is implemented as follows: An AC disc-shaped suspension porcelain composite insulator addresses the problem that existing hollow composite insulators, which are only installed via a bottom flange, suffer from insufficient strength and are prone to structural deformation when conductors gallop. The insulator includes a core rod body and a hollow composite insulator body. One end of the core rod body has a groove that communicates with the outside. A locking assembly is installed within the groove, and the hollow composite insulator body is locked onto the core rod body via the locking assembly.

[0006] The engaging assembly includes a housing installed in a groove, a movable block sliding in the housing, a connecting plate installed on the movable block, an engaging lock with a groove, and a drive plate installed on the connecting plate. The movable block has a through hole, the connecting plate and the movable block are arranged in an L-shape, the engaging lock and the movable block are arranged in a straight line, the drive plate has a sliding hole, a pressing rod is slidably installed in the sliding hole, a blocking plate is installed on the pressing rod, and a spring is installed between the connecting plate and the pressing rod.

[0007] To improve the elastic compression capability of the housing, a hollow column with elastic properties is installed on the rear end face of the housing for compressing the housing.

[0008] To ensure the stability of the connection, a stabilizing component is installed on the rear end face of the housing. The stabilizing component is located inside the column and includes a slide rod installed on the rear end face of the housing. A semi-circular fixing block is installed on the end of the slide rod away from the housing. A semi-circular slider of the same size as the fixing block is slidably installed on the slide rod. A second spring is installed between the slider and the rear end face of the housing and is sleeved on the slide rod.

[0009] To further improve the stability of the structure, the stabilizing component also includes a locking member installed in the through hole. Cavities communicating with the through hole are opened on the opposite side walls of the through hole. A fixing post is installed in the cavity, and a locking block is slidably installed on the fixing post. A spring is installed between the locking block and the inner wall of the cavity. The spring is sleeved on the fixing post. The size of the through hole is adapted to the size of the fixing block.

[0010] In order to achieve a locking fit between the insulator body and the composite insulator body, a locking hole is provided on the composite insulator body, and the locking hole is adapted to the locking lock.

[0011] In order to guide the sliding of the locking piece, a second through groove is provided at the upper end of the housing for the sliding of the locking piece, and the second through groove is adapted to the locking piece.

[0012] To meet external connection requirements, a metal base is installed at the upper end of the core rod body, and a metal frame is installed at the lower end. The metal frame has mounting through holes.

[0013] To ensure the stability of the sliding of the pressing rod, limit grooves are provided on the opposite side walls of the sliding hole, and limit rods are provided on the opposite sides of the pressing rod, with the limit rods sliding within the limit grooves.

[0014] This invention enhances the installation strength of composite insulators through the cooperation of locking and stabilizing components, effectively copes with the dynamic tension and torque generated by conductor galloping, avoids structural deformation, and extends service life.

[0015] The embodiments of the present invention have the following advantages due to the adoption of the above technical solutions: This invention improves the installation strength by using a snap-fit ​​assembly on the core rod body to snap-fit ​​the composite insulator body, which changes the traditional method of installing hollow composite insulators only through the bottom flange. This effectively resists the huge dynamic tensile force and torque generated by conductor galloping, avoids deformation of the insulator structure, and thus extends the service life.

[0016] This invention achieves the reciprocating motion of the locking mechanism through the cooperation of a pressing rod, a drive plate, a moving block, and a spring. Operators only need to press the pressing rod to complete the installation and disassembly of the composite insulator body, making the operation simple and quick and improving installation and maintenance efficiency.

[0017] This invention utilizes a column and stabilizing component located at the rear end of the housing, along with a locking component within the through hole. By leveraging the interaction of a fixing block, a slider, a second spring, a locking block, and a third spring, it achieves double locking and fastening during installation. This ensures the stability of the connection while providing elastic buffering to prevent the insulator from loosening or falling off during operation, thus guaranteeing the safe operation of the power system.

[0018] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the engaging component and stabilizing assembly structure of the present invention; Figure 3 This is a schematic diagram of the snap-fit ​​component structure of the present invention; Figure 4 This is a structural development diagram of the engaging component and stabilizing assembly of the present invention.

[0021] Figure label: 1. Core rod body; 11. Engaging assembly; 12. Metal base; 13. Metal frame; 131. Through hole two; 1100. Housing; 1101. Moving block; 1102. Connecting plate; 1103. Engaging lock; 1104. Drive plate; 1105. Through hole one; 1106. Sliding hole; 1107. Pressing rod; 1108. Spring one; 2. Composite insulator body; 3. Stabilizing assembly; 301. Sliding rod; 302. Fixing block; 303. Sliding block; 304. Spring two; 305. Engaging piece; 306. Fixing post; 307. Engaging block; 308. Spring three; 4. Locking plate; 5. Post. Detailed Implementation

[0022] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0023] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0024] like Figure 1-4 As shown, AC disc-type suspension porcelain composite insulators are mainly used in power systems such as overhead transmission lines. Addressing the problem that existing hollow composite insulators are installed only via the bottom flange, making it difficult to guarantee installation strength, and that under special weather conditions such as strong winds and icing, the enormous dynamic tension and torque generated by conductor galloping can easily lead to insulator structural deformation, this technical solution proposes an AC disc-type suspension porcelain composite insulator.

[0025] The insulator includes a core rod body 1, one end of which has a groove communicating with the outside, and a locking assembly 11 is installed in the groove. A metal base 12 is installed at the upper end of the core rod body 1, and a metal frame 13 is installed at the lower end. The metal frame 13 has a mounting through hole for easy connection with other components.

[0026] The hollow composite insulator body 2 is engaged and mounted on the core rod body 1 via the engaging assembly 11. The composite insulator body 2 has a locking hole that matches the engaging lock 1103, achieving a secure connection between the two.

[0027] The engaging assembly 11, as the core component connecting the core rod body 1 and the composite insulator body 2, includes a housing 1100 installed in a groove, a movable block 1101 sliding within the housing 1100, a connecting plate 1102 mounted on the movable block 1101, an engaging lock 1103 with a groove, and a drive plate 1104 mounted on the connecting plate 1102. The movable block 1101 has a through hole, the connecting plate 1102 and the movable block 1101 are arranged in an L-shape, and the engaging lock 1103 and the movable block 1101 are arranged in a straight line. The drive plate 1104 has a sliding hole 1106, and a pressing rod 1107 is slidably installed within the sliding hole 1106. A blocking plate is installed on the pressing rod 1107. Limiting grooves are formed on the opposite side walls of the sliding hole 1106, and limiting rods are provided on the opposite sides of the pressing rod 1107. The limiting rods slide within the limiting grooves to ensure the stability of the pressing rod 1107's movement. A spring 1108 is installed between the connecting plate 1102 and the pressing rod 1107 to provide a reset force for the pressing rod 1107.

[0028] A hollow, elastic column 5 is installed on the rear end face of the housing 1100 to compress the housing 1100. A stabilizing component 3 is also installed on the rear end face of the housing 1100, and the stabilizing component 3 is located inside the column 5. The stabilizing component 3 includes a slide rod 301 installed on the rear end face of the housing 1100. A semi-circular fixing block 302 is installed on the end of the slide rod 301 away from the housing 1100. A semi-circular slider 303 of the same size as the fixing block 302 is slidably installed on the slide rod 301. A second spring 304 is installed between the slider 303 and the rear end face of the housing 1100, and the second spring 304 is sleeved on the slide rod 301.

[0029] The stabilizing component 3 also includes a locking member 305 installed within the through hole. Cavities communicating with the through hole are formed on opposite side walls of the through hole. A fixing post 306 is installed within each cavity, and a locking block 307 is slidably mounted on the fixing post 306. A spring 308 is installed between the locking block 307 and the inner wall of the cavity, and the spring 308 is sleeved on the fixing post 306. The size of the through hole matches the size of the fixing block 302, and the cooperation between the fixing block 302 and the locking member 305 further enhances the stability of the connection.

[0030] In addition, the upper end of the housing 1100 is provided with a through groove 2 for sliding the locking piece 4. The through groove 2 is adapted to the locking piece 4, and the locking of the locking assembly 11 is achieved by the cooperation between the locking piece 4 and the through groove 2.

[0031] In specific implementation, the operation steps of this invention are as follows: During installation, first press the pressing rod 1107. The pressing rod 1107 slides within the sliding hole 1106, and the limiting rod slides within the limiting groove for guidance. The pressing rod 1107 drives the blocking plate to move and compresses the spring 1108. As the pressing rod 1107 moves, the drive plate 1104 drives the connecting plate 1102 and the moving block 1101 to slide within the housing 1100, causing the locking lock 1103 to retract or be adjusted to the ready-to-lock state.

[0032] Next, align the hollow composite insulator body 2 with the core rod body 1, so that the position of the locking lock 1103 corresponds to the lock hole on the composite insulator body 2. Release the pressing rod 1107, and under the elastic force of the spring 1108, the pressing rod 1107 returns to its original position. Through the drive plate 1104 and the connecting plate 1102, the moving block 1101 slides in the opposite direction, causing the locking lock 1103 to extend and engage in the lock hole, thus achieving the initial connection between the core rod body 1 and the composite insulator body 2.

[0033] During the engagement process, the column 5 on the rear end face of the housing 1100 is compressed and undergoes elastic deformation, applying a reverse force to the housing 1100. Simultaneously, the fixing block 302 in the stabilizing assembly 3 enters the through hole on the moving block 1101. The engaging block 307 within the through hole, under the action of spring three 308, grips the fixing block 302 tightly. Combined with the sliding of the slider 303 on the slide rod 301 and the elastic force of spring two 304, this further stabilizes the connection position and enhances torsional and tensile resistance.

[0034] Finally, the locking piece 4 is inserted into the through slot 2 at the upper end of the housing 1100 to complete the final locking. In use, the insulator is installed on the transmission line through the metal seat 12 at the upper end of the core rod body 1, the metal frame 13 at the lower end, and the mounting through hole. When encountering dynamic tension and torque generated by conductor galloping, the stabilizing component 3 and the locking component 11 work together to effectively prevent structural deformation and ensure service life.

[0035] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in the present invention, and these should all be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. AC disc-type suspension porcelain composite insulator, including: The core rod body (1) has a groove at one end and communicates with the outside; a locking component (11) is installed in the groove. The hollow composite insulator body (2) is snapped onto the core rod body (2) by a snap-fit ​​assembly (11); The engaging assembly (11) includes a housing (1100) installed in a groove, a movable block (1101) sliding in the housing (1100), a connecting plate (1102) installed on the movable block (1101), an engaging lock (1103) with a groove, and a drive plate (1104) installed on the connecting plate (1102). The movable block (1101) has a through hole (1105), and the connecting plate (1102) and... The movable blocks (1101) are arranged in an L-shape, and the locking lock (1103) is arranged in a straight line with the movable blocks (1101). The drive plate (1104) has a sliding hole (1106), and a pressing rod (1107) is slidably installed in the sliding hole (1106). A blocking plate (11071) is installed on the pressing rod (1107), and a spring (1108) is installed between the connecting plate (1102) and the pressing rod (1107).

2. The AC disc-shaped suspension porcelain composite insulator according to claim 1, characterized in that: The rear end face of the housing (1100) is fitted with a hollow column (6) for compressing the housing (1100) with elastic properties.

3. The AC disc-shaped suspension porcelain composite insulator according to claim 1, characterized in that: A stabilizing component (3) is also installed on the rear end face of the housing (1100). The stabilizing component (3) is located inside the column (6). The stabilizing component (3) includes a slide rod (301) installed on the rear end face of the housing (1100). A semi-circular fixing block (302) is installed on the end of the slide rod (301) away from the housing (1100). A semi-circular slider (303) of the same size as the fixing block (302) is slidably installed on the slide rod (301). A second spring (304) is installed between the slider (303) and the rear end face of the housing (1100). The second spring (304) is sleeved on the slide rod (301).

4. The AC disc-shaped suspension porcelain composite insulator according to claim 1, characterized in that: The stabilizing component (3) also includes a locking member (305) installed in the through hole (1105). The two opposite side walls of the through hole (1105) are provided with cavities communicating with the through hole (1105). A fixing post (306) is installed in the cavity. A locking block (307) is slidably installed on the fixing post (306). A spring (308) is installed between the locking block (307) and the inner wall of the cavity. The spring (308) is sleeved on the fixing post (306). The size of the through hole (1105) is adapted to the size of the fixing block (302).

5. The AC disc-shaped suspension porcelain composite insulator according to claim 1, characterized in that: The composite insulator body (2) is provided with a locking hole, which is compatible with the locking lock.

6. The AC disc-shaped suspension porcelain composite insulator according to claim 1, characterized in that: The upper end of the housing (1100) is provided with a through groove (11001) for sliding the locking piece (5), and the through groove (301) is adapted to the locking piece (5).

7. The AC disc-shaped suspension porcelain composite insulator according to claim 1, characterized in that: The upper end of the core rod body (1) is equipped with a metal seat (12), and the lower end is equipped with a metal frame (13).

8. The AC disc-shaped suspension porcelain composite insulator according to claim 1, characterized in that: The metal frame (13) has an installation through hole (131).

9. The AC disc-shaped suspension porcelain composite insulator according to claim 1, characterized in that: Limiting grooves are provided on the opposite side walls of the sliding hole (1106), and limiting rods are provided on the opposite sides of the pressing rod (1107), and the limiting rods slide in the limiting grooves.

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