CN209962732U

CN209962732U - Direct current cable for track traffic

Info

Publication number: CN209962732U
Application number: CN201920981095.8U
Authority: CN
Inventors: 金航; 蔡彦敏; 李高强; 金世强
Original assignee: JINSHUI CABLE GROUP CO Ltd
Current assignee: JINSHUI CABLE GROUP CO Ltd
Priority date: 2019-06-27
Filing date: 2019-06-27
Publication date: 2020-01-17
Anticipated expiration: 2029-06-27

Abstract

The utility model discloses a direct current cable for track traffic, including the protective sheath, the inside of protective sheath is inlayed and is installed the nylon wire netting cover, the inboard fixed mounting of protective sheath has the support frame, first mica layer has been paintd to the internal surface of protective layer, the resistance to compression frame is installed to the inboard of blotter, and the inboard of resistance to compression frame installs second mica layer, the internal surface paste on second mica layer is connected with the insulating layer, and the inboard of insulating layer installs the copper core, the internal surface paste of protective sheath is connected with insulating internal shield layer, and the internal surface of insulating internal shield layer inlays and installs the polytetrafluoroethylene layer, the inboard on polytetrafluoroethylene layer is connected with insulating external shield layer, and the inside fixed mounting of insulating external shield layer has the elastic component. This direct current cable for track traffic, not only structural strength is high, and stability is strong, can prevent moreover that the cable from receiving the damage at the in-process of dragging.

Description

Direct current cable for track traffic

Technical Field

The utility model relates to a relevant technical field of track traffic specifically is a direct current cable for track traffic.

Background

As rail transit is becoming more and more common, cables are also becoming more and more widely used, and cables are also being updated continuously as carriers for transmitting signals to meet the transmission requirements, and the cables for rail transit have special requirements for cables.

At present, the common direct current cable for rail transit is poor in structural strength and low in stability, and cannot prevent the cable from being damaged in the pulling process, so that the direct current cable for rail transit is provided, and the problems are solved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a direct current cable for track traffic to solve the present direct current cable for track traffic commonly used that above-mentioned background art provided, not only structural strength is poor, and stability is weaker, can not prevent moreover that the cable from receiving the problem of damage at the in-process of dragging and dragging.

In order to achieve the above object, the utility model provides a following technical scheme: a direct current cable for rail transit comprises a protective outer sleeve, a nylon mesh sleeve is embedded and installed in the protective outer sleeve, and the inner side of the nylon net sleeve is fixedly provided with a shaping rod, the inner side of the protective outer sleeve is fixedly provided with a supporting frame, and the inner side of the supporting frame is provided with a protective layer, the inner surface of the protective layer is coated with a first mica layer, and the inner side of the first mica layer is connected with a buffer pad in a sticking way, the inner side of the buffer pad is provided with a compression rack, and the inner side of the pressure-resistant frame is provided with a second mica layer, the inner surface of the second mica layer is connected with an insulating layer in a sticking way, and the inner side of the insulating layer is provided with a copper core, the inner surface of the protective outer sleeve is connected with an insulating inner shielding layer in a sticking way, and the internal surface on insulating internal shield layer inlays and installs the polytetrafluoroethylene layer, the inboard on polytetrafluoroethylene layer is connected with insulating external shield layer, and the inside fixed mounting on insulating external shield layer has the elastic component.

Preferably, the inner surface of the protective outer sleeve is of a sawtooth structure, and the protective outer sleeve is connected with the support frame in a clamping manner.

Preferably, the shaping rods are distributed on the inner side of the nylon net sleeve at equal angles, and the outer diameter of the shaping rods is equal to the inner diameter of the nylon net sleeve.

Preferably, the vertical section of the support frame is in a cross-shaped structure, and the support frame and the protective layer are distributed at intervals.

Preferably, the vertical section of the compression-resistant frame is in a V-shaped structure, and the single bodies of the compression-resistant frame are connected in a hinged mode.

Preferably, the thickness of the insulating inner shielding layer is greater than that of the polytetrafluoroethylene layer, and the thickness of the polytetrafluoroethylene layer is smaller than that of the insulating outer shielding layer.

Compared with the prior art, the beneficial effects of the utility model are that: the direct current cable for rail transit is high in structural strength and stability, and can prevent the cable from being damaged in the pulling process;

1. the support frame cannot shake through the clamping between the sawtooth-shaped structure of the protective outer sleeve and the support frame, and cables can be divided through the support frame, so that the single cables are not influenced mutually;

2. because the nylon net sleeve is embedded and installed in the protective outer sleeve, and the shaping rods are distributed in the nylon net sleeve at equal angles, the shaping rods can support the protective outer sleeve, so that the cable can be shaped easily, and the cable is high in structural strength and strong in stability;

3. the elastic component is installed to the inside of insulating outer shielding layer is inlayed, and when the cable received the extrusion, elastic deformation through the elastic component can make the cable resume into former shape to protect the cable, and the polytetrafluoroethylene layer can prevent that the cable from receiving the damage at the in-process of dragging.

Drawings

FIG. 1 is a front sectional structure of the present invention;

FIG. 2 is a schematic view of the inner structure of the protective outer cover of the present invention;

FIG. 3 is a schematic view of the connecting structure of the cushion pad and the anti-compression frame of the present invention;

fig. 4 is a schematic view of the internal cross-sectional structure of the insulating outer shield layer of the present invention.

In the figure: 1. a protective outer sleeve; 2. a nylon mesh sleeve; 3. a shaping rod; 4. a support frame; 5. a protective layer; 6. a first mica layer; 7. a cushion pad; 8. a compression-resistant frame; 9. a second mica layer; 10. an insulating layer; 11. a copper core; 12. an insulating inner shield layer; 13. a polytetrafluoroethylene layer; 14. an insulating outer shield layer; 15. an elastic member.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a direct current cable for rail transit comprises a protective outer sleeve 1, a nylon net sleeve 2, a shaping rod 3, a support frame 4, a protective layer 5, a first mica layer 6, a buffer cushion 7, a compression-resistant frame 8, a second mica layer 9, an insulating layer 10, a copper core 11, an insulating inner shielding layer 12, a polytetrafluoroethylene layer 13, an insulating outer shielding layer 14 and an elastic piece 15, wherein the nylon net sleeve 2 is embedded and installed inside the protective outer sleeve 1, the shaping rod 3 is fixedly installed on the inner side of the nylon net sleeve 2, the inner surface of the protective outer sleeve 1 is of a zigzag structure, the protective outer sleeve 1 and the support frame 4 are connected in a clamping mode, the outer surface of the cable can be protected through the protective outer sleeve 1, the shaping rod 3 is distributed on the inner side of the nylon net sleeve 2 at equal angles, the outer diameter of the shaping rod 3 is equal to the inner diameter of the nylon net sleeve 2, the protective outer sleeve 1 can be supported through the shaping, the inner side of the protective outer sleeve 1 is fixedly provided with a support frame 4, the inner side of the support frame 4 is provided with a protective layer 5, the vertical section of the support frame 4 is in a cross-shaped structure, the support frame 4 and the protective layer 5 are distributed at intervals, the cable can be divided by the support frame 4, the inner surface of the protective layer 5 is coated with a first mica layer 6, the inner side of the first mica layer 6 is connected with a buffer cushion 7 in a sticking way, the inner side of the buffer cushion 7 is provided with a pressure-resistant frame 8, the inner side of the pressure-resistant frame 8 is provided with a second mica layer 9, the inner surface of the second mica layer 9 is connected with an insulating layer 10 in a sticking way, the inner side of the insulating layer 10 is provided with a copper core 11, the inner surface of the protective outer sleeve 1 is connected with an insulating inner shielding layer 12 in a sticking way, the inner surface, and an elastic member 15 is fixedly installed inside the insulating outer shield layer 14.

As the vertical section of the compression-resistant frame 8 in figure 1 is in a V-shaped structure, and the connection mode between the single bodies of the compression-resistant frame 8 is hinged, the cable can be buffered through the compression-resistant frame 8.

As shown in fig. 2, the thickness of the insulating inner shield layer 12 is greater than the thickness of the teflon layer 13, and the thickness of the teflon layer 13 is less than the thickness of the insulating outer shield layer 14, so that the insulation of the cable is improved by the insulating inner shield layer 12.

The working principle is as follows: as the inner wall of the protective outer sleeve 1 in fig. 1 is of a zigzag structure, the support frame 4 cannot shake due to the fact that the zigzag structure of the protective outer sleeve 1 is clamped with the

support frame

4, 4 cables can be divided through the support frame 4, the first mica layer 6 and the second mica layer 9 can be used as fire-resistant layers of the cables to guarantee that the cables continue to normally operate within a period of time after being ignited, and as the connection mode between the pressure-resistant frames 8 in fig. 3 is hinged, when the cables are subjected to external pressure, the external pressure can be effectively resisted through the buffer action of the pressure-resistant frames 8 and the buffer pads 7, the impact resistance is strong, and the cables can be effectively protected;

because the internally mounted of protective housing 1 has nylon wire netting 2, and the inside equal angular distribution of nylon wire netting 2 has moulding pole 3, can make the cable stereotype easily, and structural strength is high, and stability is strong, polytetrafluoroethylene layer 13 wear resistance is good, can prevent that the cable from receiving the damage at the in-process of pulling, insulating outer shield layer 14 and insulating inner shield layer 12 comprise aluminium foil material, play the effect of shielding signal, prevent electromagnetic interference signal transmission when doing the signal line conduction weak current, inlay the inside of insulating outer shield layer 14 in figure 4 and install elastic component 15, when the cable receives the extrusion, elastic deformation through elastic component 15 can make the cable resume into former shape, thereby protect the cable, this is exactly the whole course of work of this direct current cable for track traffic.

Those not described in detail in this specification are within the skill of the art. The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete connection mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt prior art, and conventional model, including circuit connection adopts conventional connection mode among the prior art, does not detailed here again.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a direct current cable for track traffic, includes protective sheath (1), its characterized in that: the anti-explosion protective sleeve is characterized in that a nylon net sleeve (2) is mounted in the protective sleeve (1) in an embedded mode, a shaping rod (3) is fixedly mounted on the inner side of the nylon net sleeve (2), a support frame (4) is fixedly mounted on the inner side of the protective sleeve (1), a protective layer (5) is mounted on the inner side of the support frame (4), a first mica layer (6) is coated on the inner surface of the protective layer (5), a cushion pad (7) is connected to the inner side of the first mica layer (6) in an adhered mode, a compression-resistant frame (8) is mounted on the inner side of the cushion pad (7), a second mica layer (9) is mounted on the inner side of the compression-resistant frame (8), an insulating layer (10) is connected to the inner surface of the second mica layer (9) in an adhered mode, a copper core (11) is mounted on the inner side of the insulating layer (10), an insulating inner surface of the protective sleeve (1) is connected with, the inner side of the polytetrafluoroethylene layer (13) is connected with an insulating outer shielding layer (14), and an elastic part (15) is fixedly arranged inside the insulating outer shielding layer (14).

2. The direct current cable for rail transit according to claim 1, wherein: the inner surface of the protective outer sleeve (1) is of a sawtooth structure, and the protective outer sleeve (1) is connected with the support frame (4) in a clamping manner.

3. The direct current cable for rail transit according to claim 1, wherein: the shaping rods (3) are distributed on the inner side of the nylon net sleeve (2) at equal angles, and the outer diameter of the shaping rods (3) is equal to the inner diameter of the nylon net sleeve (2).

4. The direct current cable for rail transit according to claim 1, wherein: the vertical section of the support frame (4) is of a cross-shaped structure, and the support frame (4) and the protective layer (5) are distributed at intervals.

5. The direct current cable for rail transit according to claim 1, wherein: the vertical section of the compression-resistant frame (8) is of a V-shaped structure, and the single bodies of the compression-resistant frame (8) are hinged.

6. The direct current cable for rail transit according to claim 1, wherein: the thickness of the insulating inner shielding layer (12) is larger than that of the polytetrafluoroethylene layer (13), and the thickness of the polytetrafluoroethylene layer (13) is smaller than that of the insulating outer shielding layer (14).