CN212422888U

CN212422888U - Non-contact sectional insulator

Info

Publication number: CN212422888U
Application number: CN202021078092.2U
Authority: CN
Inventors: 韩宝峰; 李永生; 闫涛; 李海峰; 闫军芳; 刘龙杰; 严小娜; 李渊博
Original assignee: Baoji Bao De Li Electrification Equipment Co ltd
Current assignee: Baoji Bao De Li Electrification Equipment Co ltd
Priority date: 2020-06-11
Filing date: 2020-06-11
Publication date: 2021-01-29
Anticipated expiration: 2030-06-11

Abstract

The utility model discloses a non-contact section insulator, including a pair of bases, be equipped with between this pair of base upper insulator and lower insulator that arrange side by side in the vertical direction, be fixed with insulating slide respectively in this pair of upper insulator and lower insulator both sides, be equipped with long slide and short slide respectively in each base both sides, all be equipped with the arc extinguishing angle on long slide and short slide, upper insulator cross-section be rectangle or oval, lower insulator cross-section be circular; the base is provided with a pair of mounting grooves, and the core rods at the two ends of the upper insulator and the lower insulator are mounted in the mounting grooves by riveting and gluing; the sectional insulator of the technical scheme adopts a structure that two insulators are arranged up and down, wherein the upper insulator adopts a rectangular or oval insulator to improve the bending resistance of a product; the insulator and the aluminum alloy bases at the two ends are integrated by adopting a gluing and riveting composite process, the structure is safe and reliable, and the circuit installation is convenient.

Description

Non-contact sectional insulator

Technical Field

The utility model relates to an electronic railway connecting net equipment technical field especially relates to a single phase alternating current 25kV electronic railway connecting net is segmentation insulator for homophase electricity subsection department.

Background

The section insulator is an insulating device for electrically sectioning a rail transit contact system. Under normal conditions, when the locomotive passes through under the condition of not lowering the pantograph, the pantograph slides through the lower bottom surface of the section insulator, and the current taking of the locomotive is not interrupted. For example: when the contact net on one side of the sectional insulator breaks down and needs to be repaired, the disconnecting switch on the fault side is only needed to be opened, the power supply can be cut off for repairing, and the normal power supply and the locomotive running of the contact net on the other side of the sectional insulator are not influenced. The sectional insulator can reduce the power failure range, thereby reducing the influence of the fault on the operation of the locomotive.

The sectional insulator commonly used in China at present is a contact polytetrafluoroethylene insulating rod sectional insulator or a triangular or inverted triangular non-contact sectional insulator. The contact type sectional insulator is long in size, the pantograph is in direct contact with the main insulator, long-term maintenance is needed, and installation and adjustment are complex. The triangular or inverted-triangular non-contact type sectional insulator has heavier dead weight due to more insulators, and the suspension points are arranged on the parallel wire clamps at the two ends of the sectional insulator, so that the weight is easy to concentrate, hard points are easy to form, and the pantograph is easy to generate arc discharge, thereby influencing the driving safety.

SUMMERY OF THE UTILITY MODEL

To the not enough of above-mentioned prior art, the utility model discloses the technical problem who solves emphatically is: the non-contact type sectional insulator is convenient to install, long in maintenance period and capable of effectively solving stress concentration.

A non-contact section insulator comprises a pair of bases, wherein an upper insulator and a lower insulator which are arranged side by side in the vertical direction are arranged between the pair of bases, insulating slideways are respectively fixed on two sides of the upper insulator and the lower insulator, a long slideway and a short slideway are respectively arranged on two sides of each base, arc extinguishing angles are respectively arranged on the long slideway and the short slideway, the section of the upper insulator is rectangular or oval, and the section of the lower insulator is circular; the base on be equipped with a pair of mounting groove, go up the plug at insulator and lower insulator both ends and install in the mounting groove through riveting and gluing.

Furthermore, each base is provided with a pull rod which is connected with the suspension device in an arched shape, the middle part of the pull rod is fixed with the base, and two ends of the pull rod are provided with connecting holes.

Furthermore, each base is provided with a connecting wire clamp, each connecting wire clamp comprises a pair of clamping plates and a group of clamping bolts for clamping the clamping plates, and a step pin with a step convex ring in the middle is arranged between the clamping plates.

Furthermore, the insulating slide comprises a slide plate and at least three groups of fixing frames fixed on the slide plate, and the fixing frames are provided with a pair of upper anchor ears and lower anchor ears which are respectively arranged on the upper insulator and the lower insulator.

The utility model has the advantages and effects:

1. the utility model discloses a section insulator adopts two insulators arrangement structure from top to bottom, wherein goes up the insulator and adopts rectangle or oval insulator in order to improve product bending resistance.

2. The utility model discloses a section insulator, insulator and both ends aluminum alloy base adopt sticky compound technology with the riveting to make it become a whole, structure safe and reliable, and the circuit installation of being convenient for.

Drawings

FIG. 1 is a schematic view of the structure of the present invention

FIG. 2 is a top view of the present invention

FIG. 3 is a view taken along the line A in FIG. 2

FIG. 4 is a schematic view of the base structure of the present invention

FIG. 5 is a schematic view of the structure of the insulation slide way of the present invention

Figure 6 is a cross-sectional view of the upper insulator of the present invention

FIG. 7 is a schematic view of the connecting clamp structure of the present invention

FIG. 8 is a schematic view of the step pin structure of the present invention

FIG. 9 is the schematic view of the installation structure of the connecting clamp and the base of the present invention

Detailed Description

The sectional insulator shown in fig. 1 and 2 comprises a pair of bases 1, a pair of insulators are arranged between the pair of bases 1, the pair of insulators are an upper insulator 2 and a lower insulator 3, wherein the upper insulator 2 and the lower insulator 3 are arranged side by side in the vertical direction, a long slideway 5 and a short slideway 6 are respectively arranged on two sides of the bases 1 at two ends, the long slideway 5 and the short slideway 6 are respectively distributed on the same side of the two bases 1 (namely on the same side of the two bases 1, if the long slideway 5 is fixed on one base 1, the short slideway 6 is fixed on the other base 1), insulating slideways 4 are respectively fixed on two sides of the upper insulator 2 and the lower insulator 3, wherein the two insulating slideways 4 are not at the same position along the length direction of the upper insulator 2 and the lower insulator 3, arc extinguishing angles 7 are respectively arranged on the long slideway 5 and the short slideway 6, the section of the upper insulator 2 is rectangular or elliptical in the structure shown in fig. 6, the lower insulator 3 has a circular cross-section, so that the bending resistance of the sectional insulator can be improved.

As shown in figure 4, a pair of mounting grooves 1-1 for mounting an upper insulator 2 and a lower insulator 3 are arranged on a base 1, the shape of each mounting groove 1-1 is matched with the cross section shape of each insulator, and the upper insulator 2 and the lower insulator 3 are fixed with the base 1 by gluing and riveting after inserting core rods into the mounting grooves 1-1. The insulator and the base are integrated by adopting the composite process, the structure is safe and reliable, and the circuit installation is convenient.

As shown in fig. 3, a pull rod 8 is further installed on the base 1, the pull rod 8 is in an arch shape for connecting with the suspension device, wherein the middle part of the pull rod 8 is fixed on the base 1, and connection holes 8-1 are formed at both ends of the pull rod 8 for connecting with the suspension device, so that the rope on the suspension device forms a triangle with a larger span when being connected, and the sectional insulator is more stable.

As shown in fig. 1 to 3, the insulating slideway 4 comprises a slideway plate 4-1 and a fixing frame 4-2, the slideway plate 4-1 is fixed on the upper insulator 2 and the lower insulator 3 by the fixing frame 4-2, at least three fixing frames 4-2 are uniformly distributed on the slideway plate 4-1 for stabilizing the insulating slideway 4, as shown in fig. 5, the fixing frame 4-2 is provided with an upper hoop 4-3 and a lower hoop 4-4, wherein the upper hoop 4-3 is fixedly clasped on the upper hoop 4-3, and the lower hoop 4-4 is fixedly clasped on the lower hoop 4-4.

The base 1 is also provided with a connecting wire clamp 9 for fixing a contact wire, the connecting wire clamp 9 comprises a pair of clamping plates 9-1 and a group of clamping bolts 9-2 as shown in fig. 7, the pair of clamping plates 9-1 clamp the contact wire tightly by fastening the clamping bolts 9-2, a step pin 9-3 is further arranged between the clamping plates 9-1, a step convex ring is arranged at the middle part of the step pin 9-3 as shown in fig. 8, the step convex ring is positioned in a gap in the middle of the connecting wire clamp, the lengths of the wire clamps leaked from the two ends of the step pin are ensured to be equal, the wire clamp is conveniently installed on a base hook, and the circuit installation and the positioning. As shown in figure 9, a clamping groove 1-2 is arranged on the base 1, and the step pin 9-3 and the end part of the clamping plate 9-1 can be clamped into the clamping groove, so that the connecting clamp 9 is connected with the base 1.

Claims

1. The utility model provides a non-contact segmentation insulator, includes a pair of base (1), this is right base (1) between be equipped with last insulator (2) and lower insulator (3) of arranging side by side in the vertical direction, this is right last insulator (2) and lower insulator (3) both sides be fixed with insulating slide (4) respectively, each base (1) both sides be equipped with long slide (5) and short slide (6) respectively long slide (5) and short slide (6) on all be equipped with arc extinguishing angle (7), its characterized in that: the section of the upper insulator (2) is rectangular or oval, and the section of the lower insulator (3) is circular; the base (1) is provided with a pair of mounting grooves (1-1), and the core rods at the two ends of the upper insulator (2) and the lower insulator (3) are mounted in the mounting grooves (1-1) through riveting and gluing.

2. The non-contact segmented insulator of claim 1, wherein: each base (1) is provided with a pull rod (8) which is connected with the suspension device in an arched shape, the middle part of each pull rod (8) is fixed with the base (1), and two ends of each pull rod (8) are provided with connecting holes (8-1).

3. The non-contact segmented insulator of claim 1, wherein: each base (1) is provided with a connecting wire clamp (9), each connecting wire clamp (9) comprises a pair of clamping plates (9-1) and a group of clamping bolts (9-2) for clamping the clamping plates (9-1), and a step pin (9-3) with a step convex ring in the middle is arranged between the clamping plates (9-1).

4. The non-contact segmented insulator of claim 1, wherein: the insulating slide way (4) comprises a slide way plate (4-1) and at least three groups of fixing frames (4-2) fixed on the slide way plate (4-1), wherein the fixing frames (4-2) are provided with a pair of upper hoops (4-3) and lower hoops (4-4) which are respectively arranged on the upper insulator (2) and the lower insulator (3).