A composite insulator with injected vulcanized material

Abstract

The utility model discloses a kind of composite insulators of injection vulcanization, including composite insulator outer sheath and the bottom end connecting column of the composite insulator outer sheath bottom position place setting;Rubber airbag ring is arranged at the middle position of threaded connection cylinder, and telescopic connecting body is arranged at the end of threaded connection cylinder and the bottom end connecting column side position place setting, upper connection moving piece is arranged at the side position of telescopic connecting body, when threaded connection cylinder is connected with composite insulator outer sheath by rotating, extruding upper connection moving piece can be carried out, after upper connection moving piece is extruded, telescopic connecting body is compressed, after telescopic connecting body is compressed, gas in inside will enter into rubber airbag ring, rubber airbag ring can expand so that it extrudes and contacts composite insulator outer sheath inner side wall surface position place, to improve the sealing property of its composite insulator, and then effectively improve the composite insulator of injection vulcanization use practicality.

Description

Technical Field

[0001] This utility model belongs to the technical field of composite insulators, specifically relating to an injection-cured composite insulator. Background Technology

[0002] In the past, insulators were mostly used on utility poles. With the development of technology, they gradually evolved into disc-shaped insulators hung at one end of high-voltage power line towers. These discs are used to increase creepage distance and are usually made of glass or ceramic; they are called insulators. Insulators play two basic roles in overhead transmission lines: supporting the conductors and preventing current from returning to the ground. These two functions must be guaranteed. Insulators should not fail due to various electromechanical stresses caused by changes in environmental and electrical load conditions; otherwise, the insulators will not perform their important function, and the service life of the entire line will be compromised.

[0003] However, composite insulators are usually connected by threads when making structural connections. After repeated installation and disassembly, gaps will appear between the threads, which will allow moisture to enter and damage the inside of the insulator, thus greatly reducing its lifespan.

[0004] This invention addresses the aforementioned problems by providing a composite insulator that is injection-cured to improve the tightness of the connection structure. Utility Model Content

[0005] The purpose of this invention is to provide an injection-cured composite insulator to solve the problem mentioned in the background art that the composite insulator is usually connected by threads when making structural connections. After repeated installation and disassembly, gaps will appear between the threads, which will allow moisture to enter and cause damage to the inside of the insulator, thus greatly reducing its lifespan.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an injection-cured composite insulator, comprising an outer sheath of the composite insulator and a bottom connecting post disposed at the bottom of the outer sheath of the composite insulator;

[0007] A threaded connecting cylinder is provided on the upper side of the bottom connecting column;

[0008] A rubber airbag ring is provided at the middle position of the threaded connecting cylinder, and a telescopic connecting body is provided at the end of the threaded connecting cylinder and at the side position of the bottom connecting column. An upper connecting movable piece is provided at the side position of the telescopic connecting body.

[0009] Preferably, the upper connecting movable piece is connected to the telescopic connecting body by adhesive, the upper connecting movable piece is made of stainless steel, and the telescopic connecting body is connected to the rubber airbag ring.

[0010] Preferably, a bottom connecting threaded post is provided at the bottom position of the bottom connecting post, and a threaded knob nut is provided at the outer position of the bottom connecting threaded post.

[0011] Preferably, a first umbrella sleeve and a second umbrella sleeve are provided on the outer side of the outer sheath of the composite insulator. The first umbrella sleeve and the second umbrella sleeve have different outer diameters and are installed alternately.

[0012] Preferably, a top connecting post is provided on the upper side of the outer sheath of the composite insulator, and an upper connecting ring is provided on the top connecting post.

[0013] Preferably, a lifting threaded post is provided at the middle position of the top connecting post, and an adjustment knob is provided at the middle position of the lifting threaded post. An internal thread that matches the lifting threaded post is provided on the inner side of the adjustment knob.

[0014] Preferably, an upper connecting top plate is provided at the upper side of the lifting threaded column. The upper side of the upper connecting top plate has an arc-shaped structure, and a side connecting rubber sheet is provided at the upper side of the upper connecting top plate. The side connecting rubber sheet is bonded to the upper connecting top plate by adhesive.

[0015] Compared with the prior art, this utility model provides an injection-cured composite insulator with the following advantages:

[0016] 1. In the injection-cured composite insulator, a rubber air bladder ring is provided at the middle position of the threaded connecting cylinder, and a telescopic connecting body is provided at the end of the threaded connecting cylinder and on the side of the bottom connecting post. An upper connecting movable piece is provided on the side of the telescopic connecting body. During operation, when the threaded connecting cylinder rotates and connects with the outer sheath of the composite insulator, the upper connecting movable piece can be squeezed. After the upper connecting movable piece is squeezed, the telescopic connecting body is compressed. After the telescopic connecting body is compressed, the gas inside the telescopic connecting body enters the rubber air bladder ring. The rubber air bladder ring can expand and squeeze the inner wall of the outer sheath of the composite insulator, thereby improving the sealing performance of the composite insulator and effectively improving the practicality of the injection-cured composite insulator.

[0017] 2. In the injection-cured composite insulator, a lifting threaded post is installed at the middle position of the top connecting post. An adjustment knob is located at the middle position of the lifting threaded post, and an internal thread that matches the lifting threaded post is located on the inner side of the adjustment knob. An upper connecting top plate is located on the upper side of the lifting threaded post. The upper side of the upper connecting top plate has an arc-shaped structure, and a side connecting rubber sheet is located on the upper side of the upper connecting top plate. The side connecting rubber sheet is bonded to the upper connecting top plate with adhesive. During operation, after the upper connecting ring is connected to the designated component, the lifting threaded post is driven to rise by rotating the adjustment knob through the thread action. After the lifting threaded post rises, it drives the upper connecting top plate to hold the connection structure in place, ensuring stable installation and preventing shaking, thereby improving the service life of the upper connecting ring. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the injection-cured composite insulator of this utility model.

[0019] Figure 2 This is an enlarged structural diagram of position A of the injection-cured composite insulator of this utility model.

[0020] Figure 3 This is an enlarged structural diagram of the composite insulator injected with vulcanization according to this utility model at position B.

[0021] In the diagram: 1. Composite insulator outer sheath; 2. Umbrella sleeve one; 3. Umbrella sleeve two; 4. Top connecting post; 5. Upper connecting ring; 6. Threaded knob nut; 7. Bottom connecting threaded post; 8. Bottom connecting post; 9. Composite insulator core rod; 10. Upper connecting top piece; 11. Side connecting rubber sheet; 12. Rubber airbag ring; 13. Lifting threaded post; 14. Adjustment knob; 15. Telescopic connector; 16. Threaded connecting cylinder; 17. Upper connecting movable piece. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] This utility model provides, for example Figure 1-3 As shown, an injection-cured composite insulator includes a composite insulator outer sheath 1 and a bottom connecting post 8 disposed at the bottom of the composite insulator outer sheath 1.

[0024] A threaded connecting cylinder 16 is provided on the upper side of the bottom connecting column 8;

[0025] A rubber airbag ring 12 is provided at the middle position of the threaded connecting cylinder 16. A telescopic connecting body 15 is provided at the end of the threaded connecting cylinder 16 and at the side position of the bottom connecting post 8. An upper connecting movable piece 17 is provided at the side position of the telescopic connecting body 15. During operation, when the threaded connecting cylinder 16 rotates to connect with the outer sheath 1 of the composite insulator, the upper connecting movable piece 17 can be squeezed. After the upper connecting movable piece 17 is squeezed, the telescopic connecting body 15 will be compressed. After the telescopic connecting body 15 is compressed, the gas inside will enter the rubber airbag ring 12. The rubber airbag ring 12 can expand and squeeze the inner wall of the outer sheath 1 of the composite insulator, thereby improving the sealing performance of the composite insulator and effectively improving the practicality of the injection vulcanized composite insulator.

[0026] like Figure 3 As shown, the upper connecting movable piece 17 is connected to the telescopic connecting body 15 by adhesive. The upper connecting movable piece 17 is made of stainless steel. The telescopic connecting body 15 is connected to the rubber airbag ring 12. The gas in the telescopic connecting body 15 and the rubber airbag ring 12 can communicate because they are connected.

[0027] like Figure 3 As shown, a bottom connecting threaded post 7 is provided at the bottom position of the bottom connecting post 8, and a threaded knob nut 6 is provided at the outer position of the bottom connecting threaded post 7. A first umbrella sleeve 2 and a second umbrella sleeve 3 are provided at the outer position of the outer sheath 1 of the composite insulator. The outer diameters of the first umbrella sleeve 2 and the second umbrella sleeve 3 are different, and they are installed in an alternating manner. The first umbrella sleeve 2 and the second umbrella sleeve 3 extend the insulation path through the surface skirt structure, increase the effective creepage distance, and ensure that stable insulation performance can be maintained under humid or dirty conditions. They can wrap the core rod and isolate it from the external environment (such as rainwater, ultraviolet rays, chemical corrosion, etc.), prevent the core rod from aging or mechanical damage, and maintain the integrity of the overall structure.

[0028] like Figure 1 As shown, a top connecting post 4 is provided on the upper side of the outer sheath 1 of the composite insulator, and an upper connecting ring 5 is provided on the top connecting post 4. The upper connecting ring 5 is provided for fastening connection with the composite insulator at the position of connection.

[0029] like Figure 2As shown, a lifting threaded column 13 is provided at the middle position of the top connecting column 4, and an adjustment knob 14 is provided at the middle position of the lifting threaded column 13. The inner side of the adjustment knob 14 is provided with an internal thread that matches the lifting threaded column 13. An upper connecting top plate 10 is provided at the upper side of the lifting threaded column 13. The upper side of the upper connecting top plate 10 has an arc-shaped structure, and a side connecting rubber sheet 11 is provided at the upper side of the upper connecting top plate 10. The side connecting rubber sheet 11 is bonded to the upper connecting top plate 10 with adhesive. During operation, after the upper connecting ring 5 is connected to the designated component, the lifting threaded column 13 is driven to rise by rotating the adjustment knob 14 through the thread action. After the lifting threaded column 13 rises, it can drive the upper connecting top plate 10 to hold the connection structure, making the connection stable and preventing shaking, thereby improving the service life of the upper connecting ring 5.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A composite insulator injection-cured, characterized in that: Includes the composite insulator outer sheath (1) and the bottom connecting post (8) provided at the bottom position of the composite insulator outer sheath (1); A threaded connecting cylinder (16) is provided on the upper side of the bottom connecting column (8); The feature is that: a rubber airbag ring (12) is provided at the middle position of the threaded connecting cylinder (16), a telescopic connecting body (15) is provided at the end of the threaded connecting cylinder (16) and at the side position of the bottom connecting post (8), and an upper connecting movable piece (17) is provided at the side position of the telescopic connecting body (15).

2. The composite insulator injected with vulcanization according to claim 1, characterized in that: The upper connecting movable piece (17) is connected to the telescopic connecting body (15) by adhesive. The upper connecting movable piece (17) is made of stainless steel. The telescopic connecting body (15) is connected to the rubber airbag ring (12).

3. The composite insulator injected with vulcanization according to claim 1, characterized in that: A bottom connecting threaded post (7) is provided at the bottom position of the bottom connecting post (8), and a threaded knob nut (6) is provided at the outer side position of the bottom connecting threaded post (7).

4. The composite insulator injected with vulcanization according to claim 1, characterized in that: The outer side of the composite insulator outer sheath (1) is provided with umbrella sleeve one (2) and umbrella sleeve two (3). The outer diameters of umbrella sleeve one (2) and umbrella sleeve two (3) are different, and they are installed in an alternating manner.

5. The composite insulator injected with vulcanization according to claim 1, characterized in that: A top connecting post (4) is provided on the upper side of the outer sheath (1) of the composite insulator, and an upper connecting ring (5) is provided on the top connecting post (4).

6. The composite insulator injected with vulcanization according to claim 5, characterized in that: A lifting threaded column (13) is provided at the middle position of the top connecting column (4), and an adjustment knob (14) is provided at the middle position of the lifting threaded column (13). An internal thread that matches the lifting threaded column (13) is provided on the inner side of the adjustment knob (14).

7. The composite insulator injected with vulcanization according to claim 6, characterized in that: An upper connecting top plate (10) is provided on the upper side of the lifting threaded column (13). The upper side of the upper connecting top plate (10) is an arc-shaped structure. A side connecting rubber sheet (11) is provided on the upper side of the upper connecting top plate (10). The side connecting rubber sheet (11) is bonded to the upper connecting top plate (10) by adhesive.

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