Protective sleeve applied to insulator of high-speed rail overhead line system

Abstract

The utility model provides a protective sleeve applied to a high-speed rail overhead line system insulator, which belongs to the technical field of insulators and comprises a supporting seat, an insulating protective shell is arranged above the supporting seat, one end of the insulating protective shell is connected with the supporting seat in a gluing manner, an upper cover shell is arranged above the insulating protective shell, and the other end of the insulating protective shell is connected with the upper cover shell in a gluing manner. The upper cover shell is connected with the other end of the insulation protection shell in a gluing mode, an insulator body is arranged in the insulation protection shell, the inner wall of the insulation protection shell is matched with the outer side of the insulation protection shell, and the appearance structure of the insulation protection shell is matched with the appearance structure of the insulator body. According to the scheme, the insulating protective shell can be attached to the insulator body, the size is small, the mass is small, redundant weight cannot be brought to the insulator body, meanwhile, the insulating protective shell can reduce acting force generated by preventing birds from inhabiting and blowing and beating of sandstorm stones, meanwhile, flame retardance can be conducted on fire, and the service life of the insulator is prolonged. Therefore, the practicability and the service life of the protective sleeve are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of insulators, and particularly relates to a protective sleeve applied to insulators of high-speed railway catenaries. Background Art

[0002] Insulators of high-speed railway catenaries are key components in the catenary system of electrified railways. Their main function is to isolate current, prevent current leakage, and ensure the safety and stability of power transmission. Insulators are usually located on the poles or suspension points of the catenary, playing a dual role of support and insulation.

[0003] The existing publicly disclosed patent number is CN208126942U, and the public name is a protective sleeve for a wrist insulator of an electrified railway. It relates to the technical field of protective equipment for electrified railways. It includes a sheath body, a sheath cavity, a sheath snap skirt, and sheath snaps. A sheath cavity is arranged inside the sheath body. The sheath body and the sheath cavity are in a cross shape. The sheath snap skirt is arranged at the upper opening of the sheath body, and multiple sheath snaps are arranged on the sheath snap skirt.

[0004] Although the above-mentioned insulator sheath can be installed and disassembled on-site simply and quickly, which can greatly shorten the power outage time for maintenance; it is softer than a plastic open tube and resistant to bending, and the installation and disassembly operations are easy and convenient, and the operators do not need professional training; it has a longer service life than a plastic sheath, has good corona resistance, high and low temperature resistance, excellent mechanical properties and electrical insulation properties, low density, good flame retardancy, halogen-free, and heavy metal-free; it can ensure the safe operation of electrical equipment. However, the above-mentioned insulator sheath has poor impact resistance and flame retardant effect, thus reducing the service life of the insulator, and further reducing the practicability of the insulator. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a protective sleeve applied to insulators of high-speed railway catenaries, aiming to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A protective sleeve applied to insulators of high-speed railway catenaries includes: a support base. An insulating protective shell is arranged above the support base, and one end of the insulating protective shell is adhesively connected to the support base. An upper cover shell is arranged above the insulating protective shell, and the other end of the upper cover shell is adhesively connected to the insulating protective shell. An insulator body is arranged inside the insulating protective shell. The inner wall of the insulating protective shell is adapted to the outside of the insulating protective shell, and the outer shape structure of the insulating protective shell is adapted to the outer shape structure of the insulator body. The insulating protective shell includes a waterproof and impact-resistant layer, an anti-ultraviolet layer, a reinforcing layer, a heat-absorbing layer, and a flame-retardant layer.

[0008] As a preferred embodiment of the present utility model, the waterproof and impact-resistant layer is a silicone rubber material layer, and the waterproof and impact-resistant layer is located on the outermost side of the insulating protective shell.

[0009] As a preferred embodiment of the present utility model, the ultraviolet ray-proof layer is a fluorocarbon resin super-hydrophobic coating, and the ultraviolet ray-proof layer is adhered to the inner side of the waterproof and impact-resistant layer.

[0010] As a preferred embodiment of the present utility model, the reinforcing layer is a fiberglass layer, and the reinforcing layer is adhered to the inner side of the ultraviolet ray-proof layer.

[0011] As a preferred embodiment of the present utility model, the heat-absorbing layer is a temperature-sensitive flame-retardant layer, and a plurality of temperature-sensitive inhibitor balls are arranged inside the temperature-sensitive flame-retardant layer. The heat-absorbing layer is adhered to the inner side of the reinforcing layer.

[0012] As a preferred embodiment of the present utility model, the flame-retardant layer is a modified polypropylene layer. The flame-retardant layer is adhered to the inner side of the heat-absorbing layer and is in contact with the insulator body.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] With the arrangement of the insulating protective shell, this solution can be fitted to the insulator body, is small in size and light in weight, and will not bring extra weight to the insulator body. At the same time, the insulating protective shell can reduce the forces generated by preventing birds from perching and the blowing of sand, stones and the like, and can also retard the spread of fire, thereby improving the practicability and service life of the protective cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model, and do not constitute a limitation to the present utility model.

[0016] In the drawings:

[0017] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 is a cross-sectional view of the overall structure of the present utility model;

[0019] Figure 3 is a structural view of the present utility model Figure 2 of the enlarged view of the partial structure at A;

[0020] Figure 4 is a cross-sectional view of the structure of the insulating protective shell in the structure of the present utility model.

[0021] In the figure: 1, support base; 2, insulating protective shell; 201, waterproof and impact-resistant layer; 202, ultraviolet-resistant layer; 203, reinforcing layer; 204, heat-absorbing layer; 205, flame-retardant layer; 3, upper cover shell; 4, insulator body. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Embodiment

[0024] Please refer to Figures 1-4 , the technical solution provided in this embodiment is as follows:

[0025] A protective sleeve applied to a high-speed rail catenary insulator, comprising: a support base 1, an insulating protective shell 2 is provided above the support base 1, and one end of the insulating protective shell 2 is adhesively connected to the support base 1. An upper cover shell 3 is provided above the insulating protective shell 2, and the upper cover shell 3 is adhesively connected to the other end of the insulating protective shell 2. An insulator body 4 is provided inside the insulating protective shell 2. The inner wall of the insulating protective shell 2 is adapted to the outside of the insulating protective shell 2, and the outer shape structure of the insulating protective shell 2 is adapted to the outer shape structure of the insulator body 4. The insulating protective shell 2 includes a waterproof and impact-resistant layer 201, an ultraviolet-resistant layer 202, a reinforcing layer 203, a heat-absorbing layer 204, and a flame-retardant layer 205. Through the setting of the insulating protective shell 2, it can be fitted with the insulator body 4, with a small volume and light weight, and will not bring extra weight to the insulator body 4. At the same time, the insulating protective shell 2 can reduce the forces generated by preventing birds from perching and the blowing of sand, stones, and at the same time can retard the fire, thereby improving the practicability and service life of the protective sleeve.

[0026] Specifically, the waterproof and impact-resistant layer 201 is a silicone rubber material layer, and the waterproof and impact-resistant layer 201 is located on the outermost side of the insulating protective shell 2.

[0027] In a specific embodiment of the present invention, through the setting of the material of the waterproof and impact-resistant layer 201, the insulating protective shell 2 has good electrical insulation performance and weather resistance, can prevent moisture and pollutants from invading, and at the same time increases the impact resistance of the insulating protective shell 2.

[0028] Specifically, the ultraviolet-resistant layer 202 is a fluorocarbon resin super-hydrophobic coating, and the ultraviolet-resistant layer 202 is adhered to the inner side of the waterproof and impact-resistant layer 201.

[0029] In a specific embodiment of the present utility model, through the setting of the material of the ultraviolet protection layer 202, it can be used to improve the ultraviolet protection ability of the ultraviolet protection layer 202, and at the same time make the insulating protective shell 2 have excellent hydrophobicity and charge dissipation characteristics.

[0030] Specifically, the reinforcing layer 203 is a glass fiber layer, and the reinforcing layer 203 is adhered to the inner side of the ultraviolet protection layer 202.

[0031] In a specific embodiment of the present utility model, through the setting of the material of the reinforcing layer 203, the mechanical strength and durability of the insulating protective shell 2 can be increased.

[0032] Specifically, the heat absorption layer 204 is a temperature-sensitive flame-retardant layer, and a plurality of temperature-sensitive inhibitor balls are provided inside the temperature-sensitive flame-retardant layer. The heat absorption layer 204 is adhered to the inner side of the reinforcing layer 203.

[0033] In a specific embodiment of the present utility model, through the setting of the material of the heat absorption layer 204, when the temperature exceeds 60°, the paraffin inside the temperature-sensitive inhibitor ball melts and reacts to generate carbon dioxide gas and a salt solution, and the generated salt solution is an inhibitor solution.

[0034] Specifically, the flame-retardant layer 205 is a modified polypropylene layer. The flame-retardant layer 205 is adhered to the inner side of the heat absorption layer 204 and is in contact with the insulator body 4.

[0035] In a specific embodiment of the present utility model, through the setting of the material of the flame-retardant layer 205, the fire protection effect on the insulator body 4 can be increased.

[0036] Working principle: Through the setting of the insulating protective shell 2, it can be fitted with the insulator body 4. It is small in size and light in weight, and will not bring extra weight to the insulator body 4. Through the waterproof and impact-resistant layer 201, the insulating protective shell 2 has good electrical insulation performance and weather resistance, can prevent moisture and pollutants from invading, and at the same time increases the impact resistance of the insulating protective shell 2. Through the ultraviolet protection layer 202, it can be used to improve the ultraviolet protection ability of the ultraviolet protection layer 202, and at the same time make the insulating protective shell 2 have excellent hydrophobicity and charge dissipation characteristics. Through the reinforcing layer 203, the mechanical strength and durability of the insulating protective shell 2 can be increased. Through the setting of the heat absorption layer 204, when the temperature exceeds 60°, the paraffin inside the temperature-sensitive inhibitor ball melts and reacts to generate carbon dioxide gas and a salt solution, and the generated salt solution is an inhibitor solution. Through the setting of the flame-retardant layer 205, the fire protection effect on the insulator body 4 can be increased.

[0037] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used 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 recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A protective sleeve applied to the insulator of the high-speed rail catenary, characterized in that, Comprising: A support base (1), above which there is an insulating protective shell (2), and one end of the insulating protective shell (2) is adhesively connected to the support base (1). Above the insulating protective shell (2) there is an upper cover shell (3), and the upper cover shell (3) is adhesively connected to the other end of the insulating protective shell (2). Inside the insulating protective shell (2) there is an insulator body (4). The inner wall of the insulating protective shell (2) is adapted to the outside of the insulating protective shell (2), and the outer shape structure of the insulating protective shell (2) is adapted to the outer shape structure of the insulator body (4). The insulating protective shell (2) includes a waterproof and impact-resistant layer (201), an anti-ultraviolet layer (202), a reinforcing layer (203), a heat-absorbing layer (204) and a flame-retardant layer (205).

2. The protective sleeve applied to the insulator of the high-speed railway catenary according to claim 1, wherein, The waterproof and impact-resistant layer (201) is a silicone rubber material layer, and the waterproof and impact-resistant layer (201) is located on the outermost side of the insulating protective shell (2).

3. The protective sleeve applied to the insulator of the high-speed railway catenary according to claim 1, characterized in that The anti-ultraviolet layer (202) is a fluorocarbon resin super-hydrophobic coating, and the anti-ultraviolet layer (202) is adhered to the inner side of the waterproof and impact-resistant layer (201).

4. A protective sleeve applied to a high-speed rail catenary insulator according to claim 1, characterized in that, The reinforcing layer (203) is a glass fiber layer, and the reinforcing layer (203) is adhered to the inner side of the anti-ultraviolet layer (202).

5. The protective sleeve applied to the insulator of the high-speed rail catenary according to claim 1, wherein The heat-absorbing layer (204) is a temperature-sensitive flame-retardant layer, and inside the temperature-sensitive flame-retardant layer there are a plurality of temperature-sensitive inhibitor balls. The heat-absorbing layer (204) is adhered to the inner side of the reinforcing layer (203).

6. The protective sleeve applied to the insulator of the high-speed railway catenary according to claim 1, wherein, The flame-retardant layer (205) is a modified polypropylene layer. The flame-retardant layer (205) is adhered to the inner side of the heat-absorbing layer (204), and the flame-retardant layer (205) is in contact with the insulator body (4).

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