An electric sectioning device at a crossing switch

Abstract

The present invention provides an electrical segmentation device at a crossing turnout, which relates to the field of rail transit, including a contact network, a turnout, a segmentation insulator and a disconnector, wherein the contact network includes a first contact network and a second contact network, the turnout includes a first turnout, a second turnout, a third turnout and a fourth turnout, the segmentation insulator includes a first insulator, a second insulator, a third insulator and a fourth insulator, the segmentation insulators are connected through a contact network transition section, the segmentation insulators each include a slide plate and an insulating rod, the slide plate includes a pair of long slide plates and a pair of short slide plates staggered on both sides of the insulating rod, an air gap is provided between the long slide plate and the short slide plate, and an arc extinguishing angle is provided at the end, and the disconnector is provided between the contact network transition section and the contact network. The present invention adopts a system solution of a series gap plus a disconnector, which avoids the problem of increasing the electrical gap of the slide plate and the creepage distance of the insulating rod on a single segmentation insulator.

Description

Technical Field

[0001] The invention relates to the technical field of rail transit, and in particular to an electric segmentation device at a crossing switch. Background Art

[0002] Cross turnouts realize the crossing of non-parallel tracks, but have the advantages of short turnout length, more open routes and two main driving directions are straight, so it can save land, improve shunting capacity and improve train operating conditions.

[0003] In order to meet the use requirements of electrical segmentation devices at high altitudes, it is necessary to increase the air gap and creepage distance of the electrical segmentation devices. The current method is to increase the size of the segmentation insulator, but this will increase a lot of costs and increase the risk of bowing.

[0004] Therefore, designing an electrical segmentation device at a crossing switch has become a technical problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art and provide an electrical segmentation device at a crossing switch.

[0006] The present invention is realized by the following technical scheme: an electric segmentation device at a crossing turnout, characterized in that it includes a contact network, a turnout, a segmentation insulator and a disconnector, the contact network includes a first contact network and a second contact network arranged in parallel, the turnout includes a first turnout and a second turnout located under the first contact network, and a third turnout and a fourth turnout located under the second contact network, the segmentation insulator includes a first insulator, a second insulator, a third insulator and a fourth insulator, the first and second insulators are connected through a first contact network transition section, the third and fourth insulators are connected through a second contact network transition section, the left ends of the first and third insulators are respectively connected to the first and second insulators, the right ends of the fourth and second contact networks are respectively connected to the first and second contact networks, the first, second, third and fourth insulators all include a slide plate and an insulating rod, the slide plate includes a pair of long slide plates and a pair of short slide plates staggered on both sides of the insulating rod, an air gap is provided between the long slide plate and the short slide plate, and an arc extinguishing angle is provided at the end, and the disconnector is arranged between the contact network transition section and the contact network.

[0007] According to the above technical solution, preferably, the segmented insulator is a segmented insulator with an air gap of 300 mm and a climbing distance of 1600 mm.

[0008] According to the above technical solution, preferably, the contact network transition section is X-shaped.

[0009] According to the above technical solution, preferably, the turnout and the disconnector are electrically connected.

[0010] The beneficial effects of the present invention are as follows: the present invention is an electrical segmentation device suitable for intersections, adopts a system solution of series gap plus isolating switch, and avoids the problem of increasing the electrical gap of the slide plate and the creepage distance of the insulating rod on a single segment insulator. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A schematic diagram of the main structure according to an embodiment of the present invention is shown.

[0012] In the figure: 1. disconnector; 2. first contact network; 3. second contact network; 4. first turnout; 5. second turnout; 6. third turnout; 7. fourth turnout; 8. first insulator; 9. second insulator; 10. third insulator; 11. fourth insulator; 12. first contact network transition section; 13. second contact network transition section; 14. insulating rod; 15. long slide; 16. short slide; 17. air gap; 18. arc extinguishing angle. DETAILED DESCRIPTION

[0013] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and the best embodiments.

[0014] As shown in the figure, the present invention provides an electric segmentation device at a crossing switch, characterized in that it includes a contact network, a switch, a segmentation insulator and a disconnector 1, the contact network includes a first contact network 2 and a second contact network 3 arranged in parallel, the switch includes a first switch 4 and a second switch 5 located under the first contact network 2, and a third switch 6 and a fourth switch 7 located under the second contact network 3, the segmentation insulator includes a first insulator 8, a second insulator 9, a third insulator 10 and a fourth insulator 11, the first and second insulators are connected by a first contact network transition section 12, and the The third and fourth insulators are connected through a second contact network transition section 13, the left ends of the first and third insulators are connected to the first and second contact networks respectively, and the right ends of the fourth and second insulators are connected to the first and second contact networks respectively. The first, second, third and fourth insulators all include a slide plate and an insulating rod 14, and the slide plate includes a pair of long slide plates 15 and a pair of short slide plates 16 staggered on both sides of the insulating rod. An air gap 17 is provided between the long slide plates 15 and the short slide plates 16, and an arc extinguishing angle 18 is provided at the end. The disconnector 1 is arranged between the contact network transition section and the contact network.

[0015] According to the above embodiment, preferably, the segmented insulator is a segmented insulator with an air gap of 300 mm and a climbing distance of 1600 mm.

[0016] According to the above embodiment, preferably, the contact network transition section is X-shaped.

[0017] According to the above embodiment, preferably, the turnout and the isolating switch are electrically connected to facilitate control by the staff.

[0018] The working principle of the present invention is as follows: the isolating switch is in a normally closed state when both the overhead contact network 1 and the overhead contact network 2 are put into energized operation, so as to ensure that the working state of the train pantograph when passing through the segmented insulator is consistent with the operating conditions of other existing lines; when the overhead contact network 1 or the overhead contact network 2 needs to be shut down for inspection and maintenance, the isolating switch is opened, so that the air gaps and insulating rods of the first and second insulators and the third and fourth segmented insulators are all in series relationship in the electrical circuit, and the creepage distance of the air gap formed in the electrical circuit can meet the working requirements at high altitudes.

[0019] The beneficial effects of the present invention are as follows: the present invention is an electrical segmentation device suitable for intersections, adopts a system solution of series gap plus isolating switch, and avoids the problem of increasing the electrical gap of the slide plate and the creepage distance of the insulating rod on a single segment insulator.

[0020] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An electric segmentation device at a crossing switch, characterized in that: The invention comprises a contact network, a turnout, a segmented insulator and a disconnector, wherein the contact network comprises a first contact network and a second contact network arranged in parallel, the turnout comprises a first turnout and a second turnout located under the first contact network, and a third turnout and a fourth turnout located under the second contact network, the segmented insulator comprises a first insulator, a second insulator, a third insulator and a fourth insulator, the first insulator and the second insulator are connected through a first contact network transition section, the third insulator and the fourth insulator are connected through a second contact network transition section, the left ends of the first insulator and the third insulator are respectively connected to the first contact network and the second contact network, the right ends of the fourth insulator and the second insulator are respectively connected to the first contact network and the second contact network, the first insulator, the second insulator, the third insulator and the fourth insulator all comprise a slide plate and an insulating rod, the slide plate comprises a pair of long slide plates and a pair of short slide plates staggeredly arranged on both sides of the insulating rod, an air gap is provided between the long slide plate and the short slide plate, and an arc extinguishing angle is provided at the end, and the disconnector is arranged between the contact network transition section and the contact network.

2. The electric segmentation device at a crossing switch according to claim 1, characterized in that: The segmented insulator has an air gap of 300 mm and a climbing distance of 1600 mm.

3. The electric segmentation device at a crossing switch according to claim 1, characterized in that: The contact network transition section is X-shaped.

4. The electric segmentation device at a crossing switch according to claim 1, characterized in that: The turnout and the isolating switch are electrically connected.

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