Composite post insulator of cementing-free flange

Abstract

The utility model relates to the technical field of composite post insulators of cementing-free flanges, and discloses a composite post insulator of a cementing-free flange, which comprises an upper flange plate, an epoxy core rod is in interference fit with the inside of the upper flange plate, one end of the epoxy core rod is in interference fit with a lower flange plate, and the other end of the epoxy core rod is in interference fit with the lower flange plate. The surface of the epoxy core rod is adhesively connected with a silica gel layer, and the surface of the silica gel layer is fixedly connected with a plurality of silicone rubber umbrella skirts. According to the composite post insulator of the cementing-free flanges, through the arrangement of the upper flange plate, the lower flange plate and the epoxy core rod, when equipment is used, the flanges at the two ends are directly connected with the epoxy core rod in an interference fit mode, and the diameter of the paired epoxy core rod is larger than the hole diameter of the flanges at the two ends; the flanges at the two ends are placed in a drying oven to be baked by utilizing the characteristic of thermal expansion and cold contraction, the epoxy core rod is rapidly sleeved with the flanges, the flanges and the epoxy core rod are tightly matched into a whole after the flanges are cooled and shrunk, the matching strength is higher, and the product quality is safe and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of composite post insulators without glue-mounting flanges, in particular to a composite post insulator without glue-mounting flanges. Background Art

[0002] The composite post insulator with glue-free flange is usually an insulating component used in power systems. It has the characteristics of arc resistance, dirt resistance, and weather resistance. This insulator adopts glue-free assembly technology, avoiding the adhesive used in traditional insulators, thereby improving the reliability and durability of the product. The traditional glue-free process connects the flanges and epoxy core rods at both ends together. The products of the glue-free process will become loose during use due to thermal expansion and contraction, thus affecting the product quality. Therefore, a composite post insulator with glue-free flange is needed for operation.

[0003] A composite post insulator with a glue-mounted structure disclosed in publication number CN206322531U includes an upper flange, a lower flange and a core body, the upper end of the core body is sleeved in the through hole on the upper flange, the lower end of the core body is sleeved in the through hole on the lower flange, and the side wall of the upper end of the core body and the inner wall of the through hole on the upper flange, as well as the side wall of the lower end of the core body and the inner wall of the through hole on the lower flange are all connected by threads, and a first silicone rubber layer is provided between the side wall of the upper end of the core body and the inner wall of the through hole on the upper flange, and a second silicone rubber layer is provided between the side wall of the lower end of the core body and the inner wall of the through hole on the lower flange. The insulator has good sealing performance, simple gluing process, high working efficiency and high gluing precision.

[0004] However, the composite post insulator with the glue-bonded structure has the following disadvantages: when the equipment is used, the flanges and epoxy core rods at both ends are connected together using a glue-bonded process, and the products of the glue-bonded process are prone to loosening due to thermal expansion and contraction during use, thereby affecting product quality. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] The technical problem solved by the utility model is to provide a composite post insulator with a flange that is highly practical and can be easily operated and has a relatively simple structure without glue-fitting. This solves the problem that the products of the glue-fitting process proposed in the above background technology are prone to loosening due to thermal expansion and contraction during use.

[0007] (II) Technical solution

[0008] To achieve the above purpose, the utility model is implemented through the following technical scheme: a composite post insulator with a glue-free flange, comprising an upper flange, an epoxy core rod is interference-fitted inside the upper flange, one end of the epoxy core rod is interference-fitted with a lower flange, a silicone layer is adhesively connected to the surface of the epoxy core rod, and a plurality of silicone rubber sheds are fixedly connected to the surface of the silicone layer.

[0009] Optionally, one side of the silicone layer is adhesively connected to the surface of the epoxy core rod through an adhesive layer, and the material of the adhesive layer is silicone adhesive, which facilitates the connection of the silicone rubber shed.

[0010] Optionally, four groups of threaded holes are opened on the surface of the upper flange, and the internal threads of the four threaded holes are connected with threaded columns, which are convenient for fixing the upper flange.

[0011] Optionally, four groups of threaded holes are opened on the surface of the lower flange, and the internal threads of the four threaded holes are connected with threaded rods, which are convenient for fixing the lower flange.

[0012] Optionally, the lightning protection mechanism includes a protective cover fixedly connected to the top of the insulating layer, and a lightning rod is fixedly connected to the top of the protective cover to facilitate lightning protection.

[0013] Optionally, an insulating conduit is fixedly connected to one side of the protective cover, and a lead wire is installed inside the insulating conduit, which is convenient for attracting lightning.

[0014] Optionally, one end of the lead is fixedly connected to a ground pestle, and the ground pestle is fixedly connected to the ground, so that the ground pestle is convenient for pouring lightning into the ground.

[0015] (III) Beneficial effects

[0016] The utility model provides a composite post insulator without glue-mounting flange, which has the following beneficial effects:

[0017] 1. The composite post insulator with glue-free flange is provided with an upper flange, a lower flange and an epoxy core rod. When the equipment is used, the flanges at both ends are directly connected to the epoxy core rod by interference fit. The diameter of the matched epoxy core rod is larger than the aperture of the flanges at both ends. The flanges at both ends are placed in an oven for baking by utilizing the characteristics of thermal expansion and contraction, and are quickly put on the epoxy core rod. After the flange cools and shrinks, the flange and the epoxy core rod are tightly fitted into one. This kind of fit has higher strength and the product quality is safe and reliable.

[0018] 2. The composite post insulator with glue-free flange is provided with a lightning protection mechanism. When encountering thunder weather, a lightning rod is provided on the surface of the top protective cover of the insulator. The lightning rod transmits lightning to the ground through the lead wire inside the insulating conduit on one side, thereby improving the insulator's resistance to lightning interference and preventing lightning from damaging the insulator. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the epoxy mandrel structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the silicone rubber shed structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the lightning protection mechanism of the utility model.

[0023] In the figure: 1. upper flange; 2. epoxy core rod; 3. lower flange; 4. silicone layer; 5. silicone rubber umbrella skirt; 6. threaded column; 7. threaded rod; 8. insulating layer; 9. lightning protection mechanism; 901. protective cover; 902. lightning rod; 10. insulating conduit; 11. ground pestle. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figures 1 to 4The utility model provides a technical solution: a composite post insulator with glue-free flange, comprising an upper flange 1. Through the arrangement of the upper flange 1, the lower flange 3 and the epoxy core rod 2, when the equipment is used, the flanges at both ends are directly connected to the epoxy core rod 2 by interference fit. The diameter of the matched epoxy core rod 2 is larger than the aperture of the flanges at both ends. The flanges at both ends are placed in an oven for baking by utilizing the characteristics of thermal expansion and contraction, and are quickly put on the epoxy core rod 2. After the flange cools and shrinks, the flange and the epoxy core rod 2 are tightly matched into one, and this matching strength is higher. The product quality is safe and reliable. The upper flange 1 has an internal interference fit with an epoxy core rod 2. Through the arrangement of the upper flange 1, the lower flange 3 and the epoxy core rod 2, when the equipment is used, the flanges at both ends are directly connected to the epoxy core rod 2 by interference fit. The diameter of the matched epoxy core rod 2 is larger than the aperture of the flanges at both ends. The flanges at both ends are placed in an oven for baking by utilizing the characteristics of thermal expansion and contraction, and are quickly put on the epoxy core rod 2. After the flange cools and shrinks, the flange and the epoxy core rod 2 are tightly fitted into one. This kind of fit has higher strength, the product quality is safe and reliable, and the epoxy core rod 2 is One end of the core rod 2 is interference-fitted with a lower flange 3. Through the arrangement of the upper flange 1, the lower flange 3 and the epoxy core rod 2, when the equipment is used, the flanges at both ends are directly connected to the epoxy core rod 2 by interference fit. The diameter of the matched epoxy core rod 2 is larger than the aperture of the flanges at both ends. The flanges at both ends are placed in an oven for baking by utilizing the characteristics of thermal expansion and contraction, and are quickly put on the epoxy core rod 2. After the flanges cool and shrink, the flanges and the epoxy core rod 2 are tightly fitted into one. This kind of fit has higher strength, and the product quality is safe and reliable. The surface adhesive connection of the epoxy core rod 2 is A silicone layer 4, a plurality of silicone rubber sheds 5 are fixedly connected to the surface of the silicone layer 4, an insulating layer 8 is threadedly connected to the surface of the upper flange 1, a lightning protection mechanism 9 is fixedly connected to the top of the insulating layer 8, and the composite post insulator with glue-free flange is provided with a lightning protection mechanism 9. When encountering thunder weather, a lightning rod 902 is provided on the surface of the top protective cover 901 of the insulator. The lightning rod 902 passes lightning into the ground through the lead wire inside the insulating conduit 10 on one side, thereby improving the insulator's resistance to lightning interference and preventing lightning from damaging the insulator;

[0026] One side of the silicone layer 4 is adhesively connected to the surface of the epoxy core rod 2 through an adhesive layer, and the material of the adhesive layer is a silicone adhesive. The silicone adhesive is provided to connect the silicone rubber shed 5.

[0027] The surface of the upper flange 1 is provided with four groups of threaded holes, and the internal threads of the four threaded holes are connected with threaded columns 6, and the setting of the threaded columns 6 plays a role in fixing the upper flange 1;

[0028] The surface of the lower flange 3 is provided with four groups of threaded holes, and the internal threads of the four threaded holes are connected with threaded rods 7, and the setting of the threaded rods 7 plays a role in fixing the lower flange 3;

[0029] The lightning protection mechanism 9 includes a protective cover 901 fixedly connected to the top of the insulating layer 8, and a lightning rod 902 is fixedly connected to the top of the protective cover 901. Through the arrangement of the lightning protection mechanism 9, when encountering thunder weather, a lightning rod 902 is arranged on the surface of the protective cover 901 on the top of the insulator, and the lightning rod 902 passes the lightning into the ground through the lead wire inside the insulating conduit 10 on one side, thereby improving the insulator's resistance to lightning interference and preventing lightning from damaging the insulator;

[0030] An insulating conduit 10 is fixedly connected to one side of the protective cover 901, and a lead wire is installed inside the insulating conduit 10. The lead wire plays a role in guiding lightning.

[0031] One end of the lead is fixedly connected to a ground-piercing pestle 11, and the ground-piercing pestle 11 is fixedly connected to the ground. The setting of the ground-piercing pestle 11 plays a role in pouring lightning into the ground.

[0032] In the utility model, the working steps of the device are as follows:

[0033] 1. When the equipment is in use, the flanges at both ends are directly connected to the epoxy mandrel 2 by interference fit. The diameter of the matched epoxy mandrel 2 is larger than the aperture of the flanges at both ends. The flanges at both ends are placed in an oven for baking by utilizing the characteristics of thermal expansion and contraction, and are quickly put on the epoxy mandrel 2. After the flanges cool and shrink, the flanges and the epoxy mandrel 2 are tightly matched into one. This kind of matching strength is higher, and the product quality is safe and reliable;

[0034] 2. When encountering thunderstorms, a lightning rod 902 is provided on the surface of the top protective cover 901 of the insulator. The lightning rod 902 conducts lightning into the ground through the lead wire inside the insulating conduit 10 on one side, thereby improving the insulator's resistance to lightning interference and preventing lightning from damaging the insulator.

[0035] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above utility model, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field;

[0036] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A composite post insulator with a glue-free flange, comprising an upper flange (1), characterized in that: The upper flange (1) is internally interference-fitted with an epoxy core rod (2), one end of the epoxy core rod (2) is interference-fitted with a lower flange (3), the surface of the epoxy core rod (2) is adhesively connected to a silicone layer (4), the surface of the silicone layer (4) is fixedly connected to a plurality of silicone rubber sheds (5), the surface of the upper flange (1) is threadedly connected to an insulating layer (8), and the top of the insulating layer (8) is fixedly connected to a lightning protection mechanism (9).

2. The composite post insulator without glue-mounting flange according to claim 1, characterized in that: One side of the silicone layer (4) is adhesively connected to the surface of the epoxy core rod (2) via an adhesive layer, and the material of the adhesive layer is silicone adhesive.

3. The composite post insulator without glue-mounting flange according to claim 1, characterized in that: Four groups of threaded holes are formed on the surface of the upper flange (1), and threaded columns (6) are connected to the inner threads of the four threaded holes.

4. The composite post insulator without glue-mounting flange according to claim 1, characterized in that: The surface of the lower flange (3) is provided with four groups of threaded holes, and the internal threads of the four threaded holes are connected with threaded rods (7).

5. The composite post insulator without glue-mounting flange according to claim 1, characterized in that: The lightning protection mechanism (9) comprises a protective cover (901) fixedly connected to the top of the insulating layer (8), and a lightning rod (902) is fixedly connected to the top of the protective cover (901).

6. The composite post insulator without glue-mounting flange according to claim 5, characterized in that: An insulating conduit (10) is fixedly connected to one side of the protective cover (901), and a lead wire is installed inside the insulating conduit (10).

7. The composite post insulator without glue-mounting flange according to claim 6, characterized in that: One end of the lead wire is fixedly connected to a ground-piercing pestle (11), and the ground-piercing pestle (11) is fixedly connected to the ground.

Images