A high-voltage line post insulator

Abstract

The utility model discloses a high -voltage line column type insulator, including insulator body, be provided with the bearing on the insulator body, the bearing top fixed mounting has the connecting seat, the bearing bottom is provided with the plug -in rod, the connecting seat inside is provided with the ball, the plug -in rod bottom side wall is provided with the ring groove, the ball with ring groove is adapted, the utility model discloses when being connected to two adjacent insulators, through the plug -in rod of one insulator is inserted to the connecting seat inside of another insulator, the ball of the movable setting on the connecting seat enters the ring groove of the plug -in rod, at this moment, the ball is positioned, can complete the connection of two adjacent insulators, and this connection method is convenient for dismantling, and the connection strength is not less than the clamping of transmission, reduces the difficulty that the staff carries out the aerial work replacement insulator.

Description

Technical Field

[0001] This utility model relates to the field of insulator technology, and in particular to a high-voltage line post insulator. Background Technology

[0002] High-voltage line post insulators are key equipment in power transmission and distribution systems. They are mainly used in AC lines with a nominal voltage higher than 1000V, and undertake the core functions of supporting conductors and isolating current.

[0003] Its structure consists of a solid insulator permanently glued to a metal base, which is rigidly fixed to the tower by double-headed bolts. It has anti-pollution flashover and lightning strike resistance characteristics. The umbrella skirt is made of silicone rubber and covered with a glaze sand coating to improve environmental adaptability.

[0004] Existing high-voltage line pole-mounted insulators typically consist of multiple individual insulators connected in series for common use. When an insulator in a string needs to be replaced, workers use tools to connect the two adjacent insulators to be replaced, keeping the entire string connected before replacing the middle insulator. Most existing insulators rely on interlocking pins for connection. In actual replacement, workers need to use a hammer to break the connection. For some jammed structures, breaking them apart is more difficult and may require frequent hammering. Since insulator replacement is a high-altitude operation, frequent hammering can reduce the worker's stability and increase the difficulty of insulator replacement. Utility Model Content

[0005] The purpose of this invention is to provide a high-voltage line post insulator to overcome the above-mentioned shortcomings in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a high-voltage line post-type insulator, comprising an insulator body, a bearing member provided on the insulator body, a connecting seat fixedly installed on the top of the bearing member, a plug-in rod provided at the bottom of the bearing member, a ball provided inside the connecting seat, and an annular groove provided on the bottom side wall of the plug-in rod, wherein the ball is adapted to the annular groove.

[0007] As a further description of the above technical solution: the connecting seat is provided with multiple movable grooves, and multiple balls are disposed inside the movable grooves. The movable grooves penetrate the side wall of the connecting seat. A limiting ring is slidably installed on the connecting seat. An annular protrusion is provided on the inner wall of the limiting ring. A first spring is fixedly connected between the limiting ring and the connecting seat.

[0008] As a further description of the above technical solution: a support ring is provided at the bottom of the limiting ring, and the support ring is sleeved on the bottom of the connecting seat.

[0009] As a further description of the above technical solution: a rubber pad is provided inside the connector.

[0010] As a further description of the above technical solution: a sleeve post is slidably installed on the top of the plug rod, the sleeve post is fixedly installed on the bottom of the bearing member, and a second spring is fixedly connected between the sleeve post and the plug rod.

[0011] As a further description of the above technical solution: a sealing ring is fixedly installed on the top outer wall of the connector.

[0012] As a further description of the above technical solution: the edge of the annular protrusion near the movable groove is rounded.

[0013] As a further description of the above technical solution: the middle part of the movable groove is concave.

[0014] This utility model provides a high-voltage line post-type insulator. It has the following advantages: When connecting two adjacent insulators, the insertion rod of one insulator is inserted into the connecting seat of another insulator. A movable ball on the connecting seat enters the annular groove of the insertion rod. By limiting the ball's position, the connection between the two adjacent insulators is completed. This connection method is easy to disassemble, and the connection strength is no less than that of a transmission snap-fit, reducing the difficulty for workers replacing insulators at heights.

[0015] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0016] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a high-voltage line post-type insulator proposed in this utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of the connection between the two insulator bodies of this utility model;

[0019] Figure 3 This is a three-dimensional exploded structural diagram of the present invention;

[0020] Figure 4 This is a three-dimensional cross-sectional structural diagram of the carrier component of this utility model;

[0021] Figure 5 This is a schematic diagram of the main cross-sectional structure of the bearing component of this utility model;

[0022] Figure 6 This utility model Figure 5 A magnified structural diagram of point A in the middle.

[0023] Legend:

[0024] 1. Insulator body; 2. Bearing component; 3. Connecting seat; 4. Plug rod; 5. Ball; 6. Annular groove; 7. Movable groove; 8. Limiting ring; 9. Annular protrusion; 10. First spring; 11. Support ring; 12. Rubber pad; 13. Sleeve post; 14. Second spring; 15. Sealing ring. Detailed Implementation

[0025] 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.

[0026] Reference Figure 1-6 A high-voltage line post-type insulator includes an insulator body 1, a support member 2 on the insulator body 1, a connecting seat 3 fixedly installed on the top of the support member 2, and a plug-in rod 4 at the bottom of the support member 2. A ball bearing 5 is disposed inside the connecting seat 3, and an annular groove 6 is formed on the bottom side wall of the plug-in rod 4, with the ball bearing 5 fitting into the annular groove 6. When connecting two adjacent insulators, the plug-in rod 4 of one insulator is inserted into the connecting seat 3 of the other insulator. The ball bearing 5, which is movably disposed on the connecting seat 3, enters the annular groove 6 of the plug-in rod 4. By limiting the ball bearing 5, the connection between the two adjacent insulators is completed. This connection method is easy to disassemble, and the connection strength is no less than that of a transmission snap-fit, reducing the difficulty for workers to replace insulators at heights.

[0027] As a preferred technical solution of this embodiment, the connecting seat 3 is provided with multiple movable grooves 7, and multiple balls 5 are disposed inside the movable grooves 7. The movable grooves 7 penetrate the side wall of the connecting seat 3. A limiting ring 8 is slidably installed on the connecting seat 3. An annular protrusion 9 is provided on the inner wall of the limiting ring 8. A first spring 10 is fixedly connected between the limiting ring 8 and the connecting seat 3. The balls 5 can move freely inside the movable grooves 7. However, when the annular protrusion 9 on the limiting ring 8 moves to the same height as the balls 5, the annular protrusion 9 squeezes the balls 5, causing the balls 5 to completely protrude into the connecting seat 3. At this time, if the plug rod 4 is inserted into the connecting seat 3, the protruding part of the balls 5 is inside the annular groove 6, thereby completing the connection between the connecting seat 3 and the plug rod 4. In the initial state, the annular protrusion 9 and the balls 5 are at the same height. With this structure, when replacing the insulator, the sliding limiting ring 8 can be used to remove the insulator.

[0028] As a preferred technical solution in this embodiment, a support ring 11 is provided at the bottom of the limiting ring 8, and the support ring 11 is sleeved on the bottom of the connecting seat 3; the support ring 11 provides limiting support for the limiting ring 8, so that the limiting ring 8 is always in the position of limiting the ball 5. The support ring 11 is an elastic metal part, which can be easily removed after the bolts on the support ring 11 are released. Even if the bolts and nuts on the support ring 11 are corroded and cannot be easily removed, the elastic metal part is thin and light, and can be easily destroyed and removed with pliers.

[0029] As a preferred technical solution in this embodiment, a rubber pad 12 is provided inside the connecting seat 3; the rubber pad 12 makes the connection of the plug rod 4 inside the connecting seat 3 more stable, and the rubber pad 12 increases the preload between the plug rod 4 and the ball 5.

[0030] As a preferred technical solution in this embodiment, a sleeve post 13 is slidably installed on the top of the plug rod 4, and the sleeve post 13 is fixedly installed at the bottom of the bearing member 2. A second spring 14 is fixedly connected between the sleeve post 13 and the plug rod 4. When replacing insulators at height, it is necessary to first connect the two adjacent insulators to be replaced through the connecting frame using tools. After the spacing of the connecting frame is fixed, the plug rod 4 is retracted into the sleeve post 13, which can easily remove the target insulator.

[0031] As a preferred technical solution in this embodiment, a sealing ring 15 is fixedly installed on the top outer wall of the connecting seat 3; when the limiting ring 8 locks the ball 5, the top inner wall of the limiting ring 8 is in close contact with the sealing ring 15, increasing the sealing line between the limiting ring 8 and the connecting seat 3, avoiding internal corrosion and affecting the sliding of the limiting ring 8.

[0032] As a preferred technical solution in this embodiment, the edge of the annular protrusion 9 near the movable groove 7 is set as a rounded corner; by setting the edge of the annular protrusion 9 in contact with the ball 5 as an arc-shaped rounded corner, the fit between the annular protrusion 9 and the ball 5 is higher, and the wear between the annular protrusion 9 and the ball 5 is reduced.

[0033] As a preferred technical solution in this embodiment, the middle part of the movable groove 7 is concave; by setting the middle part of the movable groove 7 to be concave, the ball 5 always tends to return to the center inside the movable groove 7. Therefore, after the ball 5 loses the support and limit of the annular protrusion 9, the separation of the plug rod 4 and the ball 5 is easier, which facilitates the disassembly of the plug rod 4.

[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] 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 high-voltage line post-type insulator, comprising an insulator body (1), characterized in that: The insulator body (1) is provided with a support member (2), a connecting seat (3) is fixedly installed on the top of the support member (2), a plug rod (4) is provided at the bottom of the support member (2), a ball (5) is provided inside the connecting seat (3), and an annular groove (6) is opened on the bottom side wall of the plug rod (4), and the ball (5) is adapted to the annular groove (6).

2. A high-voltage line post-type insulator according to claim 1, characterized in that, The connecting seat (3) has multiple movable grooves (7), and multiple balls (5) are disposed inside the movable grooves (7). The movable grooves (7) penetrate the side wall of the connecting seat (3). A limiting ring (8) is slidably installed on the connecting seat (3). An annular protrusion (9) is provided on the inner wall of the limiting ring (8). A first spring (10) is fixedly connected between the limiting ring (8) and the connecting seat (3).

3. A high-voltage line post-type insulator according to claim 2, characterized in that, The bottom of the limiting ring (8) is provided with a support ring (11), which is sleeved on the bottom of the connecting seat (3).

4. A high-voltage line post-type insulator according to claim 2, characterized in that, The connector (3) is provided with a rubber pad (12) inside.

5. A high-voltage line post-type insulator according to claim 4, characterized in that, A sleeve (13) is slidably installed on the top of the plug rod (4), and the sleeve (13) is fixedly installed on the bottom of the bearing member (2). A second spring (14) is fixedly connected between the sleeve (13) and the plug rod (4).

6. A high-voltage line post-type insulator according to claim 4, characterized in that, A sealing ring (15) is fixedly installed on the top outer wall of the connecting seat (3).

7. A high-voltage line post-type insulator according to claim 4, characterized in that, The annular protrusion (9) near the edge of the movable groove (7) is rounded.

8. A high-voltage line post-type insulator according to claim 4, characterized in that, The middle part of the movable groove (7) is concave.

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