High-strength suspension insulator for ultra-high voltage transmission line

Abstract

The utility model discloses a high strength suspension insulator for ultra-high voltage transmission line relates to insulator field, including insulator, porcelain piece, steel cap and steel foot, said steel cap and porcelain piece are connected through the connecting part, the connecting part includes the fixed disk, the fixed disk is bonded on the porcelain piece surface through the cement adhesive, and the steel foot is fixed on the porcelain piece surface. A supporting column is fixedly arranged at the top of the fixing disc, a plurality of connecting pieces are fixedly arranged on the supporting column at equal intervals, the bottoms of the connecting pieces are fixed to the top of the fixing disc, and the steel cap is bonded to the outer side wall of the fixing disc through a cement adhesive; the connection strength between the steel cap and the porcelain piece is mainly improved, so that a cement adhesive can be more tightly and uniformly filled between the steel cap and the porcelain piece, the reliability and durability of connection are ensured, meanwhile, natural rainfall in rainy weather is utilized, the interior of the insulator is effectively cooled, and the service life of the insulator is prolonged. Therefore, the working performance and the service life are improved.

Description

Technical Field

[0001] The utility model relates to the field of screening, and particularly relates to a high-strength suspension insulator for ultra-high voltage transmission lines. Background Art

[0002] When insulators are applied to ultra-high voltage transmission lines, in order to enhance their support and compressive resistance, the mechanical properties of the insulators themselves are strengthened. However, after long-term bearing of pressure and tension, the joints of the insulators are prone to instability, which will lead to the weakening of the connection between the steel cap and the porcelain part, thus affecting the service life of the insulator.

[0003] Therefore, it is necessary to propose a high-strength suspension insulator for ultra-high voltage transmission lines to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a high-strength suspension insulator for ultra-high voltage transmission lines to solve the problem that after long-term bearing of pressure and tension, the joints of the insulators are prone to instability, which will lead to the weakening of the connection between the steel cap and the porcelain part, thus affecting the service life of the insulator.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a high-strength suspension insulator for ultra-high voltage transmission lines, including an insulating part, a porcelain part, a steel cap and a steel foot, and the steel cap and the porcelain part are connected through a connecting part;

[0006] The connecting part includes a fixing plate, the fixing plate is bonded to the surface of the porcelain part through a cement adhesive, a support column is fixedly arranged at the top of the fixing plate, a plurality of connecting pieces are fixedly arranged at equal intervals on the support column, and the bottom of the connecting piece is fixed to the top of the fixing plate, and the steel cap is bonded to the outer side wall of the fixing plate through a cement adhesive;

[0007] A plurality of cavities are equidistantly arranged on the inner wall of the fixing plate for storing water, a plurality of drain grooves are equidistantly arranged on the outer side wall of the fixing plate, and the cavities are communicated with the drain grooves.

[0008] Preferably, a plurality of connecting strips are equidistantly and fixedly arranged on the outer side wall of the fixing plate, and a hollow groove is arranged on the outer side wall of the connecting strip.

[0009] Preferably, the connecting piece is arranged in an L shape.

[0010] Preferably, a plurality of through grooves are equidistantly arranged on the outer side wall of the connecting piece.

[0011] Preferably, a plurality of water inlet holes are equidistantly arranged on the surface of the fixing plate, and the water inlet holes are communicated with the cavities.

[0012] Preferably, the drainage groove is arc-shaped.

[0013] The technical effects and advantages of the present utility model:

[0014] Mainly to increase the connection strength between the steel cap and the porcelain part, so that the cement adhesive can fill more closely and evenly between the steel cap and the porcelain part, ensuring the reliability and durability of the connection. At the same time, the natural precipitation in rainy weather is utilized to effectively cool the inside of the insulator, thereby improving its working performance and service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the high-strength suspension insulator for UHV transmission lines of the present utility model;

[0016] Figure 2 It is a schematic diagram of the porcelain part steel cap and the fixing plate of the present utility model;

[0017] Figure 3 For the present utility model Figure 2 Enlarged view at A in;

[0018] Figure 4 It is a schematic diagram of the structure of the connecting part of the present utility model;

[0019] Figure 5 For the present utility model Figure 4 Enlarged view at B in.

[0020] In the figure: 101, insulating part; 1, porcelain part; 2, steel cap; 3, steel foot; 4, connecting part; 401, fixing plate; 402, support column; 403, connecting piece; 404, cavity; 405, drainage groove; 406, connecting bar; 407, hollow groove; 408, through groove; 409, water inlet hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] The present utility model provides a high-strength suspension insulator for UHV transmission lines as shown in Figure 1 - Figure 5 shown, including an insulating part 101, a porcelain part 1, a steel cap 2 and a steel foot 3. The porcelain part 1 is fixedly arranged on the outer side wall of the insulating part 101, and the steel foot 3 is fixedly arranged at one end of the insulating part 101 away from the porcelain part 1.

[0023] The steel cap 2 and the porcelain part 1 are connected through the connecting part 4, mainly to increase the connection strength between the steel cap 2 and the porcelain part 1, so that the cement adhesive can fill more tightly and evenly between the steel cap 2 and the porcelain part 1, ensuring the reliability and durability of the connection. At the same time, the natural precipitation in rainy weather is utilized to effectively cool the inside of the insulator, thereby improving its working performance and service life.

[0024] The connecting part 4 includes a fixing plate 401. When the steel cap 2 is subjected to a downward extrusion force, due to the large contact area between the fixing plate 401 and the surface of the porcelain part 1, this extrusion force can be effectively dispersed and borne, thus ensuring a more stable and reliable connection between the steel cap 2 and the porcelain part 1, reducing the risk of damage caused by excessive local pressure, and significantly enhancing the structural durability of the insulator.

[0025] The fixing plate 401 is bonded to the surface of the porcelain part 1 through a cement adhesive, and the steel cap 2 is bonded to the outer side wall of the fixing plate 401 through a cement adhesive. A support column 402 is fixedly arranged at the top of the fixing plate 401, and a plurality of connecting pieces 403 are fixedly arranged at equal intervals on the support column 402, and the bottom of the connecting piece 403 is fixed to the top of the fixing plate 401. The connecting piece 403 is arranged in an L shape, which improves the stability of the overall structure and can provide a better support effect when the steel cap 2 is subjected to a downward extrusion force;

[0026] Moreover, a plurality of through grooves 408 are equidistantly formed on the outer side wall of the connecting piece 403. During the bonding process of the steel cap 2 and the porcelain part 1 with a cement adhesive, the adhesive can pass through these through grooves 408, and after drying and solidifying, it can significantly enhance the connection strength between the connecting piece 403 and the cement adhesive, improving the stability of the overall structure, and effectively increasing the compressive strength of the fixing plate 401, enabling the insulator to withstand greater external forces.

[0027] Furthermore, a plurality of connecting bars 406 are equidistantly and fixedly arranged on the outer side wall of the fixing plate 401, and a hollow groove 407 is formed on the outer side wall of the connecting bar 406. When the steel cap 2 is tightly bonded to the porcelain part 1 through a cement adhesive, the cement adhesive can fully fill and contact the connecting piece 403 and the hollow groove 407 to form a more stable connection structure. After the cement adhesive dries, this structure can reduce the displacement generated when the steel cap 2 shakes, thereby significantly improving the stability of the insulator.

[0028] A plurality of cavities 404 are equidistantly formed on the inner wall of the fixing plate 401 for storing water. A plurality of drain grooves 405 are equidistantly formed on the outer side wall of the fixing plate 401. The drain grooves 405 are arranged in an arc shape. Starting from the side close to the cavity 404, the drain grooves 405 are gradually arranged from high to low to form a drainage slope, so that in the case of rainfall or water accumulation, the water can quickly drain along the drain grooves 405, effectively preventing water from accumulating on the fixing plate 401.

[0029] The cavity 404 is communicated with the drain groove 405. A plurality of water inlet holes 409 are equidistantly formed on the surface of the fixed disk 401, and the water inlet holes 409 are communicated with the cavity 404. In rainy days, rainwater flows into the cavity 404 through the water inlet holes 409, which can effectively take away the internal heat generated by the insulator during operation. Along with the flow of moisture, the heat is further conducted to the drain groove 405 and finally discharged through the drain groove 405, thereby realizing effective heat dissipation inside the insulator.

[0030] Considering the usage environment under different weather conditions, even in non-rainy weather, when there is wind, the wind can also enter the water inlet holes 409, effectively discharging the heat generated inside the insulator from the drain groove 405, enabling the insulator to be normally used under different weather conditions, thereby significantly enhancing its adaptability.

Claims

1. A high-strength suspension insulator for an ultra-high voltage transmission line, comprising an insulating member (101), a porcelain member (1), a steel cap (2) and a steel foot (3), characterized in that: The steel cap (2) is connected to the porcelain component (1) via a connecting portion (4); The connecting portion (4) comprises a fixing plate (401), the fixing plate (401) being bonded to the surface of the porcelain piece (1) by cement adhesive, a supporting column (402) being fixedly arranged on the top of the fixing plate (401), a plurality of connecting pieces (403) being fixedly arranged at equal intervals on the supporting column (402), and the bottom of the connecting piece (403) being fixed to the top of the fixing plate (401), and the steel cap (2) being bonded to the outer wall of the fixing plate (401) by cement adhesive; The inner wall of the fixed plate (401) is provided with a plurality of cavities (404) at equal intervals, the cavities (404) are used to store water, and the outer wall of the fixed plate (401) is provided with a plurality of drainage grooves (405) at equal intervals, the cavities (404) are in communication with the drainage grooves (405).

2. The high-strength suspension insulator for ultra-high voltage transmission lines according to claim 1, characterized in that: A plurality of connection bars (406) are fixedly arranged at equal intervals on the outer side wall of the fixed plate (401), and a hollow groove (407) is formed on the outer side wall of the connection bar (406).

3. The high-strength suspension insulator for ultra-high voltage transmission lines according to claim 1, characterized in that: The connecting piece (403) is arranged in an L shape.

4. The high-strength suspension insulator for ultra-high voltage transmission lines according to claim 3, characterized in that: The outer side wall of the connecting piece (403) is provided with a plurality of through slots (408) at equal intervals.

5. The high-strength suspension insulator for ultra-high voltage transmission lines according to claim 1, characterized in that: A plurality of water inlet holes (409) are equidistantly provided on the surface of the fixing plate (401), and the water inlet holes (409) are in communication with the cavity (404).

6. The high-strength suspension insulator for ultra-high voltage transmission lines according to claim 1, characterized in that: The drainage groove (405) is arranged in an arc shape.

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