Rigid section insulator for rail transit

Abstract

The utility model relates to the technical field of structural design of section insulators, in particular to a rigid section insulator for rail transit, which comprises two joints, two section guide plates are respectively mounted on the two joints, a plurality of main insulators are mounted between the two joints, arc extinction angles are mounted on the inner walls of the section guide plates, and the arc extinction angles are mounted on the inner walls of the section guide plates. The plurality of main insulators are connected with a plurality of insulating plate parts through fixing parts, each insulating plate part comprises a pair of mounting plates, each pair of mounting plates is provided with a vertical slide way and a transverse slide way, a first telescopic slide block is mounted in each transverse slide way, a second telescopic slide block is mounted in each vertical slide way, and the first telescopic slide block is connected with the second telescopic slide block. The bottoms of the two second telescopic sliding blocks are fixedly provided with insulating abutting plates, and one ends of the two first telescopic sliding blocks are provided with insulating sliding plates. According to the utility model, the insulating sliding plate is pushed to be transiently connected with the segmented guide plate, so that electric arcs generated when the pantograph passes through are reduced, and a certain protection effect is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sectional insulator structure design technical field especially relates to a rigid sectional insulator for rail transit. BACKGROUND

[0002] Rigid suspension catenary is one of urban rail transit and electrified railway overhead catenary power supply system modes, sectional insulator is the important component equipment of rigid suspension catenary system, is used for the electrical section of catenary, and the electrical communication and maintenance of line are convenient. Sectional insulator contains insulating slide and arc extinguishing angle, when the pantograph of electric car passes sectional insulator, insulating slide conducts sectional insulator's flow guide slide, and the contact resistance between the pantograph slide and sectional insulator flow guide slide is small enough when the potential of sectional insulator both ends is equal, then the pantograph passes stably, otherwise, different degrees of arc may occur.

[0003] The existing sectional insulator installs the insulating slide and flow guide slide not contact each other, and in order to guarantee that the both ends circuit is stable when no electric car passes, the gap of a certain distance is kept between the both, but when the pantograph of electric car passes, because of the existence of the gap between insulating slide and flow guide slide, certain resistance is produced inevitably, therefore the arc phenomenon caused may cause damage to insulator, lead to the barrier effect reduction of sectional insulator. UTILITY MODEL CONTENTS

[0004] The utility model discloses a kind of sectional insulators for rail transit, including insulating slide, flow guide slide and insulating slide and flow guide slide, insulating slide and flow guide slide are connected, and insulating slide is provided with the gap of a certain distance between flow guide slide.

[0005] To achieve the above object, the utility model adopts the following technical scheme:

[0006] The utility model provides a rigid sectional insulator for rail transit, including two joints, two sectional flow guide plates are fixedly installed respectively in two joints, a plurality of main insulators are fixedly installed between two joints, the inner wall of a plurality of sectional flow guide plates is fixedly installed with arc extinguishing angle, a plurality of insulating plate components are fixedly connected through fixing parts to a plurality of main insulators, the insulating plate component includes a pair of mounting plates, and the vertical slide and horizontal slide are set up on each pair of mounting plates, the first telescopic sliding block is slidably installed in the horizontal slide, and the spring for rebounding the first telescopic sliding block is fixedly installed to its inner wall, the second telescopic sliding block is slidably installed in the vertical slide, the connecting rod component for mutual pressing is connected between the first telescopic sliding block and the second telescopic sliding block, the connecting rod component includes two main connecting columns and pressing rod, two main connecting columns are fixedly installed on the first telescopic sliding block and the second telescopic sliding block respectively, and are rotatably sleeved with the both ends of pressing rod, the insulating pressing plate is fixedly installed on the bottom of two second telescopic sliding blocks, and the insulating slide plate is fixedly installed on the one end of two first telescopic sliding blocks.

[0007] Preferably, the connecting rod component further includes a balance rod for maintaining the stability of the pressing rod and two auxiliary connecting columns, the auxiliary connecting columns are fixedly installed on the mounting plate and the pressing rod respectively, and are rotatably sleeved with the both ends of the balance rod.

[0008] Preferably, the fixing part includes two fixing plates fixedly connected with a plurality of mounting plates respectively, a plurality of mounting holes are formed in the fixing plates, and the mounting holes are used for the horizontal penetration of the main insulator.

[0009] Preferably, the joint includes a mounting head and a balance head, the mounting head is fixedly connected with two main insulators, the balance head is fixedly connected with another main insulator, the mounting head is fixedly connected with a plurality of sectional flow guide plates through a plurality of mounting blocks, and the surface of the mounting head is fixedly installed with a busbar head.

[0010] Preferably, the main insulator includes a glass steel rod core body and a silicon rubber umbrella skirt wrapped on the surface of the glass steel rod core body.

[0011] Preferably, the bottom of a plurality of sectional flow guide plates, a plurality of insulating slide plates and a plurality of arc extinguishing angles is in the same horizontal plane.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] When the electric car passes the sectional insulator, the pantograph will extrude the insulating pressing plate, push the insulating slide plate to contact with the arc extinguishing angle through the cooperation of the first and second telescopic sliders and the connecting rod component, and complete the temporary connection with the sectional flow guide plate, reduce the arc generated when the pantograph passes, thereby avoiding the safety accidents caused by the damage of the main insulator due to the arc, and playing a certain protection effect, when the electric car leaves, the insulating slide plate will reset under the action of gravity and spring elastic potential, without affecting the independence of the circuit at both ends of the sectional insulator. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 A three-dimensional structural schematic view of a rigid sectional insulator for rail transit is provided for the utility model;

[0015] Figure 2 A top view structural schematic view of a rigid sectional insulator for rail transit is provided for the utility model;

[0016] Figure 3 A side view structural schematic view of a rigid sectional insulator for rail transit is provided for the utility model;

[0017] Figure 4 A partial three-dimensional structural schematic view of the insulating plate component and the fixed plate of a rigid sectional insulator for rail transit is provided for the utility model;

[0018] Figure 5 A partial three-dimensional structural schematic view of the connecting plate and the insulating pressing plate of a rigid sectional insulator for rail transit is provided for the utility model;

[0019] Figure 6 A partial three-dimensional structural schematic view of the joint of a rigid sectional insulator for rail transit is provided for the utility model.

[0020] In the figure: 1 joint, 2 sectional flow guide plate, 3 main insulator, 4 arc extinguishing angle, 5 insulating plate component, 6 mounting plate, 7 first telescopic slider, 8 second telescopic slider, 9 insulating pressing plate, 10 insulating slide plate, 11 main connecting column, 12 pressing rod, 13 balance rod, 14 fixed plate, 15 mounting head, 16 balance head, 17 bus head, 18 mounting block. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0022] The terms such as "upper", "lower", "left", "right", "middle" and "one" cited in the utility model are only for the convenience of clear description, and are not used to limit the scope of the utility model, and the change or adjustment of the relative relationship is also regarded as the scope of the utility model without substantial change of the technical content.

[0023] Referring to Figures 1-6 A rigid segmented insulator for rail transit, comprising two joints 1, two joints 1 are respectively fixedly installed with two segmented flow guide plates 2, a plurality of main insulators 3 are fixedly installed between the two joints 1, the main insulator 3 comprises a glass steel rod core body and a silicon rubber umbrella skirt wrapped on the surface of the glass steel rod core body, the joint 1 comprises a mounting head 15 and a balance head 16, the mounting head 15 is fixedly connected with two main insulators 3, the balance head 16 is fixedly connected with another main insulator 3, the mounting head 15 is fixedly connected with a plurality of segmented flow guide plates 2 through a plurality of mounting blocks 18, the mounting head 15 is fixedly installed with a bus head 17 on the surface, the inner wall of the plurality of segmented flow guide plates 2 is fixedly installed with arc suppression angles 4, a plurality of insulating plate components 5 are fixedly connected to the plurality of main insulators 3 through fixing components, the insulating plate component 5 comprises a pair of mounting plates 6, a vertical slide and a horizontal slide are formed in each pair of mounting plates 6, a first telescopic sliding block 7 is horizontally slidably installed in the horizontal slide, and a spring for rebounding the first telescopic sliding block 7 is fixedly installed on the inner wall of the horizontal slide, a second telescopic sliding block 8 is vertically slidably installed in the vertical slide, a connecting rod component for mutual pressing is connected between the first telescopic sliding block 7 and the second telescopic sliding block 8, the connecting rod component comprises two main connecting columns 11 and a pressing rod 12, the two main connecting columns 11 are respectively fixedly installed on the first telescopic sliding block 7 and the second telescopic sliding block 8 and rotatably sleeved with the pressing rod 12 at two ends, the two second telescopic sliding blocks 8 are fixedly installed with insulating pressing plates 9 at the bottom, the two first telescopic sliding blocks 7 are fixedly installed with insulating sliding plates 10 at one end, the bottom of the plurality of segmented flow guide plates 2, the plurality of insulating sliding plates 10 and the plurality of arc suppression angles 4 are in the same horizontal plane.

[0024] When the electric car passes through the segmented insulator, the pantograph will move horizontally along the segmented flow guide plate 2, then pass through the insulating pressing plate 9, and then push the second telescopic sliding block 8 to move upward along the vertical slide through the pressing force, then push the first telescopic sliding block 7 to move outward along the horizontal slide through the pressing rod 12, and at the same time push the rectangular block to move in the rectangular groove, at this time the spring is compressed by the rectangular block, and finally the first telescopic sliding block 7 will push the insulating sliding plate 10 to contact with the arc suppression angle 4 and complete the temporary connection with the segmented flow guide plate 2, thereby reducing the arc generated when the pantograph passes through, and when the electric car leaves, the insulating sliding plate 10 will reset under the action of gravity and spring elastic potential energy, without affecting the independence of the circuits at both ends of the segmented insulator.

[0025] The connecting rod component further comprises a balance rod 13 for maintaining the stable pushing of the pressing rod 12, and two auxiliary connecting columns fixedly installed on the mounting plate 6 and the pressing rod 12 respectively and rotatably sleeved with both ends of the balance rod 13.

[0026] When the second telescopic slider 8 moves upward along the vertical slide, the pressing rod 12 is pushed to gradually change from the oblique placement to the horizontal placement under the action of the balance rod 13, so as to generate a pushing force on the first telescopic slider 7 and move horizontally along the horizontal slide.

[0027] The fixed component comprises fixed plates 14 fixedly connected with the mounting plates 6 respectively, and a plurality of mounting holes are formed in each of the fixed plates 14, and the mounting holes are used for horizontal penetration of the main insulator 3.

[0028] Considering the actual installation factors, the fixed plate 14 and the mounting plate 6 are integrally installed, and the fixed plate 14 is sleeved on the main insulator 3 through the mounting hole during installation.

[0029] In the utility model, when the electric car passes the sectional insulator, the pantograph moves horizontally along the sectional flow guide plate 2, then passes the insulating pressing plate 9, and then pushes the second telescopic slider 8 to move upward along the vertical slide through the pressing force, then moves the first telescopic slider 7 outward along the horizontal slide through the connecting rod component, at the same time, the spring in the horizontal slide is compressed by the first telescopic slider 7 through the rectangular block, finally, the insulating slide plate 10 is pushed to contact the arc extinguishing horn 4, and the temporary connection with the sectional flow guide plate 2 is completed, the electric arc generated when the pantograph passes is reduced, so that the safety accident caused by the arc damage to the main insulator 3 is avoided, and a certain protection effect is achieved; after the electric car leaves, the insulating slide plate 10 is reset under the action of the gravity and the spring elastic potential energy, and the independence of the circuits at both ends of the sectional insulator is not affected.

[0030] In the utility model, unless otherwise specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense.

[0031] The above is only the preferred specific implementation manner of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A rigid segmented insulator for rail transport, comprising two joints (1), characterized in that, Two said joints (1) are respectively fixedly installed with two segmented deflectors (2) of different sizes, a plurality of main insulators (3) are fixedly installed between two said joints (1), the inner walls of a plurality of said segmented deflectors (2) are fixedly installed with arc suppression horns (4), a plurality of said main insulators (3) are fixedly connected with a plurality of insulating plate components (5) through fixing components, the insulating plate component (5) comprises a pair of mounting plates (6), a vertical slide and a horizontal slide are formed in each pair of said mounting plates (6), a first telescopic sliding block (7) is horizontally and slidingly installed in the horizontal slide, a rectangular groove is formed in the inner wall of the horizontal slide, a rectangular block is horizontally and slidingly installed in the inner wall of the rectangular groove, a spring is fixedly installed between the surface of the rectangular block and the inner wall of the rectangular groove, and the first telescopic sliding block (7) is fixedly connected with the spring, a second telescopic sliding block (8) is vertically and slidingly installed in the vertical slide, a connecting rod component for mutual pressing is connected between the first telescopic sliding block (7) and the second telescopic sliding block (8), the connecting rod component comprises two main connecting columns (11) and a pressing rod (12), the two main connecting columns (11) are respectively fixedly installed on the first telescopic sliding block (7) and the second telescopic sliding block (8), and rotatably sleeved with the two ends of the pressing rod (12), two second telescopic sliding blocks (8) are fixedly installed with insulating pressing plates (9) at the bottom, and two first telescopic sliding blocks (7) are fixedly installed with insulating sliding plates (10) at one end.

2. The rigid sectional insulator for rail transit according to claim 1, characterized in that, The connecting rod component further comprises a balance rod (13) for maintaining the stable pushing of the pressing rod (12) and two auxiliary connecting columns, the two auxiliary connecting columns are respectively fixedly installed on the mounting plate (6) and the pressing rod (12), and rotatably sleeved with the two ends of the balance rod (13).

3. The rigid sectional insulator for rail transit according to claim 1, characterized in that, The fixing component comprises two fixing plates (14) fixedly connected with a plurality of mounting plates (6), a plurality of mounting holes are formed in the fixing plates (14), and the mounting holes are used for the horizontal penetration of the main insulators (3).

4. The rigid sectional insulator for rail transit according to claim 1, characterized in that, The joint (1) comprises a mounting head (15) and a balance head (16), the mounting head (15) is fixedly connected with two main insulators (3), the balance head (16) is fixedly connected with another main insulator (3), the mounting head (15) is fixedly connected with a plurality of segmented deflectors (2) through a plurality of mounting blocks (18), and the surface of the mounting head (15) is fixedly installed with a busbar head (17).

5. The rigid sectional insulator for rail transit according to claim 1, characterized in that, The main insulator (3) comprises a glass steel rod core and a silicon rubber umbrella skirt wrapped on the surface of the glass steel rod core.

6. The rigid sectional insulator for rail transit according to claim 1, characterized in that, The bottoms of a plurality of said segmented deflectors (2), a plurality of insulating sliding plates (10) and a plurality of arc suppression horns (4) are in the same horizontal plane.

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