CN215417708U

CN215417708U - Repeated protection pin insulator

Info

Publication number: CN215417708U
Application number: CN202121456069.7U
Authority: CN
Inventors: 龙沙
Original assignee: Liling Jinxin Electric Porcelain Co ltd
Current assignee: Liling Jinxin Electric Porcelain Co ltd
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2022-01-04
Anticipated expiration: 2031-06-29

Abstract

The utility model relates to the technical field of power system equipment, and discloses a repeated protection pin insulator which comprises a porcelain body, wherein an umbrella skirt is arranged outside the porcelain body, a wire guide groove is arranged at the upper end of the porcelain body, first fixing plates are fixedly connected to both sides of the wire guide groove, the two first fixing plates are connected with the porcelain body together, a pressing plate is arranged at the upper part of the wire guide groove and is matched with the wire guide groove, second fixing plates are fixedly connected to both sides of the pressing plate, first sheaths are arranged inside the two second fixing plates and the first fixing plates, connecting blocks are arranged inside a plurality of first sheaths, a second sheath is arranged inside the porcelain body, the second sheath is made of rubber, a mandrel is in threaded connection with the second sheath, and the problem that the porcelain body cracks are caused by metal expansion at the joint of the mandrel and the porcelain body is solved, the later maintenance cost is reduced.

Description

Repeated protection pin insulator

Technical Field

The utility model relates to the technical field of power system equipment, in particular to a repeated protection pin insulator.

Background

The insulator is a special insulating control part, plays important effect in overhead transmission line, and the insulator that uses now generally can lead to various electromechanical stress to disappear because of the change of environment, makes the insulator can't produce its self great effect, will harm the use and the operating life of whole circuit, and pin insulator includes porcelain body and metal plug, in order to fixed wire, often can increase the clamp plate at the porcelain body top.

However, the connection portions between the pressing plate and the porcelain body and between the metal core rod and the porcelain body usually have different thermal expansion coefficients from the metal body to the porcelain body, so that the porcelain body is cracked due to the expansion of the metal body in the use process of the pin insulator, and the porcelain body loses the original function.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a repetitive protection pin insulator to solve the above problems of the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a repeated protection pin insulator, includes the porcelain body, the outside of the porcelain body is provided with the full skirt, porcelain body upper end is provided with the wire casing, the equal first fixed plate of fixedly connected with in both sides of wire casing, two first fixed plate jointly with the porcelain body is connected, the upper portion of wire casing is provided with the clamp plate, the clamp plate with wire casing looks adaptation, the equal fixedly connected with second fixed plate in both sides of clamp plate, two the second fixed plate with the inside of first fixed plate all is provided with first sheath, and is a plurality of the inside of first sheath all is provided with the connecting block, the clamp plate with the wire casing passes through the connection can be dismantled to the connecting block, the clamp plate with the wire casing is convenient for fixed wire.

As a still further scheme of the utility model: the lower surface wall of the porcelain body is in threaded connection with a core rod, one end, far away from the porcelain body, of the core rod is provided with a nut and a flange, and the core rod is in threaded connection with the telegraph pole mounting frame and locked by the nut.

As a still further scheme of the utility model: the porcelain body is internally provided with a second sheath, the outer wall of one end of the core rod is in threaded connection with the inner wall of the second sheath, and the second sheath is made of rubber.

As a still further scheme of the utility model: the wire guide groove and the pressing plate are both in a semicircular arc shape, a first rubber pad and a second rubber pad are arranged on the inner walls of the wire guide groove and the pressing plate respectively, and the first rubber pad and the second rubber pad can increase friction force on wires.

As a still further scheme of the utility model: the surface of the umbrella skirt is coated with an anti-pollution flashover paint which prevents a high-pollution environment from influencing the insulating effect of the device.

As a still further scheme of the utility model: the pressing plate is made of aluminum alloy, the aluminum alloy is light in weight, the load of the porcelain body is reduced, the strength is good, and the corrosion resistance is good.

Compared with the prior art, the utility model has the beneficial effects that:

1. the second sheath is arranged in the porcelain body and made of rubber, and the core rod is in threaded connection with the second sheath, so that the problem of porcelain body cracking caused by metal expansion at the joint of the core rod and the porcelain body is solved, and the later maintenance cost is reduced;

2. the pressing plate is arranged on the upper portion of the wire groove, and the first rubber pad and the second rubber pad are arranged inside the wire groove and the pressing plate, so that friction force on the wire can be increased by the first rubber pad and the second rubber pad, the device and the wire can be conveniently fixed, and the device is effectively prevented from being worn on the wire.

Drawings

Fig. 1 is a schematic view of an overall structure of a repetitive protection pin insulator;

fig. 2 is a sectional view of an overall structure in a repetitive protection pin insulator;

fig. 3 is a cross-sectional view of a platen and a wire groove in a repetitive protected pin insulator.

In the figure: 1. a porcelain body; 2. an umbrella skirt; 3. a core rod; 4. a wire guide groove; 5. pressing a plate; 6. a first fixing plate; 7. a second fixing plate; 8. a first sheath; 9. connecting blocks; 10. a first rubber pad; 11. a second rubber pad; 12. a nut; 13. a flange; 14. a second sheath.

Detailed Description

Referring to fig. 1-3, in the embodiment of the present invention, a repetitive-protection pin insulator includes a ceramic body 1, an umbrella skirt 2 is disposed outside the ceramic body 1, a wire groove 4 is disposed at an upper end of the ceramic body 1, first fixing plates 6 are fixedly connected to both sides of the wire groove 4, the two first fixing plates 6 are commonly connected to the ceramic body 1, a pressing plate 5 is disposed on an upper portion of the wire groove 4, the pressing plate 5 is adapted to the wire groove 4, second fixing plates 7 are fixedly connected to both sides of the pressing plate 5, first sheaths 8 are disposed inside the two second fixing plates 7 and the first fixing plates 6, connecting blocks 9 are disposed inside the first sheaths 8, the pressing plate 5 is detachably connected to the wire groove 4 through the connecting blocks 9, and the pressing plate 5 and the wire groove 4 are convenient for fixing wires.

In fig. 1-3: lower surface wall threaded connection of porcelain body 1 has plug 3, the one end that porcelain body 1 was kept away from to plug 3 is provided with nut 12 and flange 13, plug 3 and wire pole mounting bracket threaded connection, and lock with nut 12, the inside of porcelain body 1 is provided with second sheath 14, the one end outer wall of plug 3 and the inner wall threaded connection of second sheath 14, second sheath 14 is the rubber material, wire casing 4 and clamp plate 5 all are the semicircle form, and the inner wall of wire casing 4 and clamp plate 5 is provided with first rubber pad 10 and second rubber pad 11 respectively, first rubber pad 10 and second rubber pad 11 can increase the frictional force to the wire, umbrella skirt 2 surface scribbles antifouling sudden strain of a muscle paint, antifouling sudden muscle paint prevents the insulating effect that highly dirty environment from influencing the device, clamp plate 5 is the aluminum alloy material, the aluminum alloy material is light, reduce the load of porcelain body 1, and is good in strength, and corrosion resistance is good.

The working principle of the utility model is as follows: at first with plug 3 and wire pole mounting bracket threaded connection, and lock with nut 12, alright with install the device on the wire pole, then put into wire casing 4 with the wire, cover clamp plate 5, and go into first sheath 8 with connecting block 9 card, alright realize fixed to the wire, clamp plate 5 is the aluminum alloy material, light in weight, reduce porcelain body 1's load, high strength, corrosion resistance is good, the life of clamp plate 5 has been improved, 2 surfaces of full skirt scribble antifouling sudden strain of a muscle japanning, antifouling sudden strain of a muscle japanning prevents the insulating effect of highly dirty environmental impact device, through set up second sheath 14 in porcelain body 1's inside, and second sheath 14 is the rubber material, plug 3 and the 14 threaded connection of second sheath, the problem that the junction of plug 3 and porcelain body 1 arouses porcelain body 1 to explode owing to the metal inflation has been solved, the later maintenance cost is reduced.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present invention, and the technical solutions and the utility model concepts of the present invention are equivalent to or changed within the scope of the present invention.

Claims

1. A repeated protection pin insulator comprises a porcelain body (1), and is characterized in that an umbrella skirt (2) is arranged outside the porcelain body (1), the upper end of the porcelain body (1) is provided with a wire guide groove (4), both sides of the wire guide groove (4) are fixedly connected with first fixing plates (6), the two first fixing plates (6) are jointly connected with the porcelain body (1), a pressing plate (5) is arranged at the upper part of the wire guide groove (4), the pressing plate (5) is matched with the wire guide groove (4), two sides of the pressure plate (5) are fixedly connected with second fixing plates (7), first sheaths (8) are arranged inside the two second fixing plates (7) and the first fixing plate (6), connecting blocks (9) are arranged inside the first sheaths (8), the pressing plate (5) is detachably connected with the wire guide groove (4) through the connecting block (9).

2. A repeat protection pin insulator according to claim 1, characterized in that the lower surface wall of the porcelain body (1) is screwed with a core rod (3), and the end of the core rod (3) away from the porcelain body (1) is provided with a nut (12) and a flange (13).

3. A repetitive protected pin insulator according to claim 2, characterized in that the porcelain body (1) is provided with a second sheath (14) inside, and the outer wall of one end of the core rod (3) is in threaded connection with the inner wall of the second sheath (14).

4. A repetitive protected pin insulator according to claim 1, characterized in that the conductor channel (4) and the pressure plate (5) are each in the shape of a semi-circular arc, and the inner walls of the conductor channel (4) and the pressure plate (5) are provided with a first rubber pad (10) and a second rubber pad (11), respectively.

5. A repetitive protected pin insulator according to claim 1, characterized in that the surface of the shed (2) is coated with an anti-flashover paint.

6. A repetitive protected pin insulator according to claim 1, characterized in that the pressure plate (5) is of aluminium alloy.