CN211859565U - Railway signal cable terminating connection cabinet - Google Patents
Railway signal cable terminating connection cabinet Download PDFInfo
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- CN211859565U CN211859565U CN202020732646.XU CN202020732646U CN211859565U CN 211859565 U CN211859565 U CN 211859565U CN 202020732646 U CN202020732646 U CN 202020732646U CN 211859565 U CN211859565 U CN 211859565U
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Abstract
The utility model belongs to the technical field of signal equipment, in particular to a railway signal cable terminating and connecting cabinet, which comprises a cabinet body, a plurality of outdoor signal cables, a cable terminating and connecting box and a plurality of groups of four-core-group twisted shielding wires, wherein the outdoor signal cables, the cable terminating and connecting box and the groups of four-core-group twisted shielding wires are arranged in the cabinet body from bottom to top; in the cable terminating splice box, the core wire of the outdoor signal cable is connected with the core wire of the four-core group twisted shielding wire; the cable terminating junction box is used for cutting off the outdoor signal cable and separating the sheath and the core wire of the outdoor signal cable; the cable termination cassette includes a ground terminal to which a sheath of the outdoor signal cable is connected. The utility model provides a cabinet is joined in marriage to railway signal cable one-tenth termination has thoroughly cut off cable sheath and ground connection, prevents that lightning current and power frequency short-circuit current from spreading into the interior equipment rack through the cable sheath, joins in the cabinet with the risk control at railway signal cable one-tenth termination.
Description
Technical Field
The utility model belongs to the technical field of signal equipment, in particular to cabinet is continued to railway signal cable one-tenth termination.
Background
Indoor equipment such as ZPW-2000A track circuit links to each other through the cable with outdoor equipment, rail, and when outdoor equipment or rail received lightning current or power frequency heavy current invasion, the impact heavy current directly invades indoorly through cable channel, and indoor equipment suffers serious current impact, causes large tracts of land equipment to damage even the burning of starting a fire, causes huge challenge to railway operation safety and loss control.
Aiming at the problem that lightning current and power frequency large current invade indoor equipment, the existing solution is to directly enter an outdoor signal cable into a room and then process the signal cable, and fig. 1 is a schematic diagram of the existing solution, as shown in fig. 1, when the outdoor signal cable of the current track circuit enters a signal mechanical room, after the cable enters a track circuit comprehensive cabinet (indoor track circuit equipment), a steel belt and an aluminum sheath of a cable sheath are cut off and grounded on the comprehensive cabinet.
In current solution, when outdoor lightning current invades indoorly through the steel band and the aluminium sheath of cable crust, most electric current can be through the steel band and the aluminium sheath ground connection completion earial drainage of synthesizing cabinet department, but too big or draw short-circuit current direct invasion, perhaps steel band aluminium sheath ground connection position contact resistance is too big when the lightning current is too big, when instantaneous current can't obtain fully releasing, will cause the heavy current to invade indoor arouse equipment to damage, produce a large amount of heats in synthesizing cabinet department even and cause equipment burning, loss area is great, recovery time is longer, driving influence is more serious.
Therefore, it is necessary to develop a new device to solve the problems of the prior art.
SUMMERY OF THE UTILITY MODEL
In view of the above problems, the present invention provides a railway signal cable terminating and connecting cabinet, which comprises a cabinet body, and a plurality of outdoor signal cables, cable terminating and connecting boxes, and a plurality of groups of four-core twisted shielding wires arranged inside the cabinet body from bottom to top;
in the cable terminating splice box, the core wire of the outdoor signal cable is connected with the core wire of the four-core group twisted shielding wire;
the cable terminating junction box is used for cutting off the outdoor signal cable and separating the sheath and the core wire of the outdoor signal cable; the cable termination cassette includes a ground terminal to which a sheath of the outdoor signal cable is connected.
Further, a cable terminating ground row is arranged on the cable terminating closure, and the grounding terminal is fixed on the cable terminating ground row;
the outer skin of the outdoor signal cable is a steel belt, an aluminum sheath and an inner shielding layer.
Further, each group of four-core group twisted shielding wires comprises a plurality of four-core group twisted shielding wires;
the total number of the four-core groups of each outdoor signal cable is the same as the total number of the four-core groups of the twisted shielding wires of each group.
Furthermore, the railway signal cable end-to-end connection cabinet also comprises a plurality of wire grooves, and a group of four-core twisted shielding wires is arranged in each wire groove; the wire casing adopts all-metal cover plate to seal from front to back and from left to right.
Further, the plurality of wire grooves are arranged in parallel.
Furthermore, the number of the wire grooves is the same as that of the outdoor signal cables, and a plurality of the four-core-set twisted shielding wires are arranged in each wire groove.
Furthermore, the railway signal cable terminating connection cabinet also comprises a temperature monitoring alarm device; the temperature monitoring and alarming device comprises a plurality of monitoring ports, wherein the monitoring ports are respectively connected with the cable terminating junction box and used for acquiring the real-time temperature of the outdoor signal cable and alarming when the real-time temperature of the outdoor signal cable exceeds the set temperature.
Further, the railway signal cable terminating connection cabinet also comprises a current collecting device; the current acquisition device comprises a lightning current and power frequency current acquisition port, and the acquisition port is arranged on the grounding connecting line and is used for acquiring and recording lightning current and power frequency heavy current.
Further, the cabinet body includes roof, bottom plate, preceding curb plate, posterior lateral plate, left side board, right side board.
Furthermore, a plurality of first through holes are formed in the bottom plate and used for introducing a plurality of outdoor signal cables; a plurality of outdoor signal cables respectively pass through the first through holes;
a plurality of second through holes are formed in the top plate and used for leading out a plurality of groups of the four-core-set twisted shielding wires; and a plurality of groups of the four-core group twisted shielding wires respectively pass through the second through holes.
The utility model has the advantages that:
to the problem of lightning current, power frequency heavy current invasion indoor equipment, present solution is handled indoor back with outdoor signal cable direct entering, uses the utility model provides a device can cut off outdoor signal cable in the cabinet, does not let outdoor signal cable get into indoorly, and lets the four-core group twist shielded wire that continues rather get into indoorly to reach the purpose of thorough lightning protection. The utility model provides a cabinet is joined in marriage to railway signal cable one-tenth termination has thoroughly cut off cable sheath and ground connection, prevents that lightning current and power frequency short-circuit current from spreading into the interior equipment rack through the cable sheath, joins in the cabinet with the risk control at railway signal cable one-tenth termination. Moreover, the railway signal cable end-connecting cabinet is separated from the lightning protection equipment, so that the influence range expansion caused by the burning loss of the outdoor signal cable is avoided. The railway signal cable end-connecting cabinet is simple in design and convenient to maintain and restore. Furthermore, the utility model discloses a four-core group twist shielded wire and cable conductor continue, and four-core group twist shielded wire has fire-retardant, low smoke and zero halogen, waterproof, dustproof, protection against rodents of preventing and the characteristics of preventing ant of preventing fire, and hardness is little, does benefit to and walks the line construction.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Figure 1 is a schematic diagram of a prior art solution;
FIG. 2 is a front view of the railway signal cable terminating continuity cabinet of the present invention with the front side plate removed;
FIG. 3 is a schematic view of the railway signal cable terminating continuity cabinet of the present invention with the front side panel and the right side panel removed;
fig. 4 shows a front view of the railway signal cable terminating continuity cabinet of the present invention;
fig. 5 shows a rear view of the railway signal cable termination continuity cabinet of the present invention;
FIG. 6 is a rear view of the railway signal cable termination continuity cabinet of the present invention with the rear side panel removed;
FIG. 7 is a left side view of the railway signal cable termination continuity cabinet of the present invention with the left side panel removed;
FIG. 8 is a right side view of the railway signal cable termination continuity cabinet of the present invention with the right side panel removed;
fig. 9 shows a bottom view of the railway signal cable terminating and splicing cabinet of the present invention;
fig. 10 shows a top view of the railway signal cable terminating continuity cabinet of the present invention;
fig. 11 is a diagram showing the arrangement of the railway signal cable terminating cabinet and the signal machine room when the signal machine room is configured without a lightning protection room;
fig. 12 is a diagram showing the arrangement of the railway signal cable terminating cabinet and the signal machine room when the signal machine room is configured with a lightning protection room.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. 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.
It is to be understood that the use of the terms first, second, etc. do not denote any order or importance, but rather the terms first, second, etc. are used to distinguish one element from another.
The utility model provides a railway signal cable terminating and connecting cabinet, which comprises a cabinet body, as shown in figure 4, the cabinet body comprises a front side plate; as shown in fig. 5, the cabinet includes a rear side panel; the cabinet body still includes roof, bottom plate, left side board, right side board, roof, bottom plate, preceding curb plate, posterior lateral plate, left side board, right side board all are detachable. As shown in fig. 2-3 and 6-8, a plurality of outdoor signal cables, cable terminating and splicing boxes and a plurality of groups of four-core twisted shielding wires are arranged in the cabinet body from bottom to top. As shown in fig. 9, a plurality of first through holes are formed in the bottom plate for introducing a plurality of outdoor signal cables; a plurality of outdoor signal cables respectively pass through the first through holes; as shown in fig. 10, a plurality of second through holes are provided in the top plate for leading out a plurality of sets of the four-core set twisted shielding wires; and a plurality of groups of the four-core group twisted shielding wires respectively pass through the second through holes. The plurality of outdoor signal cables and the plurality of groups of four-core-group twisted shielding wires are vertically arranged.
In the cable terminating splice box, the core wire of the outdoor signal cable is connected with the core wire of the four-core group twisted shielding wire; the cable terminating junction box is used for cutting off the outdoor signal cable and separating the sheath and the core wire of the outdoor signal cable; the outer skin of the outdoor signal cable is a steel belt, an aluminum sheath and an inner shielding layer. The cable termination cassette includes a ground terminal to which a sheath of the outdoor signal cable is connected. The cable terminating closure is provided with a cable terminating ground row, and the ground terminal on the cable terminating closure is fixed on the cable terminating ground row. The outer sheath of the four-core twisted shielding wire is suspended in the cable terminating splicing box and is not spliced.
The railway signal cable end-connecting cabinet also comprises a plurality of wire grooves, and a group of four-core twisted shielding wires is arranged in each wire groove; each group of four-core group twisted shielding wires comprises a plurality of four-core group twisted shielding wires; and a plurality of four-core-set twisted shielding wires are arranged in each wire slot. The total number of the four-core groups of each outdoor signal cable is the same as the total number of the four-core groups in each corresponding group of the four-core group twisted shielding wires. The wire casing adopts all-metal cover plate to seal from front to back and from left to right. The plurality of wire grooves are arranged in parallel.
The railway signal cable terminating connection cabinet further comprises a temperature monitoring alarm device and a current collecting device. The temperature monitoring and alarming device comprises a plurality of monitoring ports, wherein the monitoring ports are respectively connected with the cable terminating junction box and used for acquiring the real-time temperature of the outdoor signal cable and alarming when the real-time temperature of the outdoor signal cable exceeds the set temperature. The current acquisition device comprises a lightning current acquisition port and a power frequency current acquisition port, and the acquisition ports are installed on the grounding connecting line and used for acquiring and recording lightning current and power frequency heavy current.
Outdoor signal cables enter a cabinet from a first through hole at the bottom of a railway signal cable terminating connection cabinet and are cut off to a cable terminating connection box position, outer skins of the outdoor signal cables are connected to a grounding terminal of the cable terminating connection box, the grounding terminal of the cable terminating connection box is uniformly fixed on a cable terminating grounding row, cable cores are connected with four-core-set twisted shielding wires after being cut off, after each cable core is connected with each corresponding four-core-set twisted shielding wire, the four-core-set twisted shielding wires enter corresponding wire slots, each group of four-core-set twisted shielding wires corresponding to each outdoor signal cable corresponds to one wire slot, the wire slots are closed front and back and left and right by adopting full-metal cover plates, and each group of four-core-set twisted shielding wires exit the cabinet from a second through hole above the cabinet to be wired. The temperature monitoring alarm device and the current collecting device are arranged in the cabinet, so that the temperature of the outdoor signal cable can be monitored, and lightning current and power frequency large-current information can be collected.
Fig. 11 shows the arrangement of the railway signal cable terminating cabinet and the signal machine room when the signal machine room is configured without a lightning protection room. As shown in fig. 11, for example, in the ZPW-2000A track circuit system, the outdoor signal cable directly enters the railway signal cable terminating cabinet, and after terminating grounding and splicing processes, the outdoor signal cable is connected to the track circuit integrated cabinet by the four-core twisted shielding wire. The railway signal cable terminating connection cabinet is arranged at the front end of the track circuit comprehensive cabinet, the function of the track circuit comprehensive cabinet is unchanged, the original cable terminating processing before outdoor signal cables enter the track circuit comprehensive cabinet is cancelled, the railway signal cable terminating connection cabinets are uniformly arranged, and the railway signal cable terminating connection cabinets are arranged among cables. Fig. 11 is an exemplary illustration of the structure of the railway signal cable terminating cabinet, and the specific structure of the railway signal cable terminating cabinet is the same as that described above (the structure in fig. 2 to 10).
Fig. 12 shows the arrangement of the railway signal cable terminating cabinet and the signal machine room when the signal machine room is configured with a lightning protection room. As shown in fig. 12, taking ZPW-2000A track circuit system as an example, when there is a lightning protection room in the signal machine room, a track circuit integrated cabinet is disposed between the lightning protection rooms, and a railway signal cable terminating cabinet is disposed between the cables, and the connection sequence and manner are the same as those in the case of no lightning protection room in the signal machine room of fig. 11. Fig. 12 is an exemplary illustration of the structure of the railway signal cable terminating cabinet, and the specific structure of the railway signal cable terminating cabinet is the same as that described above (the structure in fig. 2 to 10).
The utility model discloses do not do the restriction to the radical of four-core group's twist shielded wire in outdoor signal cable's the radical, the four-core group total number of every outdoor signal cable, the four-core group of every group twist shielded wire, the size of the cabinet body, the technical staff can select suitable parameter as required. For example, the technician can adjust the length, width and height of the cabinet according to the number of rows of outdoor signal cables, the number of outdoor signal cables in each row and the like.
The utility model provides a cabinet is continued to railway signal cable one-tenth end makes outdoor signal cable no longer directly link to each other with equipment such as indoor track circuit, has cut off outdoor signal cable such as track circuit system and indoor equipment lug connection's way, has cut off the heavy current and has got into indoor way through outdoor signal cable crust, has reduced heavy current invasion risk. The utility model provides a railway signal cable becomes end and continues cabinet and make equipment configuration disperse more, but furthest reduces the loss when breaking down, guarantees the ageing of high-speed railway maintenance.
In addition, the outdoor signal cable is an LPZ0B lightning protection area, the cable in the existing solution is shunted on a track circuit comprehensive cabinet after entering the room, and the track circuit comprehensive cabinet is an LPZ1 lightning protection area; use the utility model provides a railway signal cable becomes behind the continuation cabinet of termination, outdoor signal cable advanced income railway signal cable becomes the continuation cabinet of termination and carries out cable sheath ground connection and heart yearn and continues, and railway signal cable becomes the continuation cabinet of termination and is LPZ1 lightning protection district, and the cable conductor gets into track circuit integrated cabinet through four-core group twist shielded wire after continuing, and four-core group twist shielded wire shielding layer is in the single-ended ground connection of integrated cabinet, and track circuit integrated cabinet is LPZ2 lightning protection district. The lightning protection zone in which the indoor track circuit equipment (integrated cabinet) is located is upgraded from the LPZ1 to the LPZ 2. Use the utility model discloses a railway signal cable becomes end switching cabinet can make lightning protection interface upgrade.
In addition, the railway signal cable terminating connection cabinet routes indoor lines through the four-core-group twisted shielding lines, the four-core-group twisted shielding lines are softer, routing construction is more convenient, the four-core-group twisted shielding lines are thinner relative to the wire diameter of the outdoor signal cable, space is not occupied, and the railway signal cable terminating connection cabinet has the advantage of being more convenient to construct.
Although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. A railway signal cable end-to-end connection cabinet is characterized by comprising a cabinet body, a plurality of outdoor signal cables, a cable end-to-end connection box and a plurality of groups of four-core-group twisted shielding wires, wherein the outdoor signal cables, the cable end-to-end connection box and the four-core-group twisted shielding wires are arranged in the cabinet body from bottom to top;
in the cable terminating splice box, the core wire of the outdoor signal cable is connected with the core wire of the four-core group twisted shielding wire;
the cable terminating junction box is used for cutting off the outdoor signal cable and separating the sheath and the core wire of the outdoor signal cable; the cable termination cassette includes a ground terminal to which a sheath of the outdoor signal cable is connected.
2. The railway signal cable terminated splice closure of claim 1, wherein a cable terminated ground row is provided on the cable terminated closure, the ground terminals being secured to the cable terminated ground row;
the outer skin of the outdoor signal cable is a steel belt, an aluminum sheath and an inner shielding layer.
3. The railway signal cable end-to-end splice cabinet of claim 2, wherein each set of four-core twisted shielded wires comprises a plurality of four-core twisted shielded wires;
the total number of the four-core groups of each outdoor signal cable is the same as the total number of the four-core groups of the twisted shielding wires of each group.
4. The railway signal cable end-to-end splice cabinet of claim 3, further comprising a plurality of wireways, each wireway having a set of four-core twisted shielded wires disposed therein; the wire casing adopts all-metal cover plate to seal from front to back and from left to right.
5. The railway signal cable terminated splice cabinet of claim 4, wherein the plurality of wireways are disposed parallel to one another.
6. The railway signal cable end-to-end splice cabinet of claim 4, wherein the number of wireways within each of which is disposed a plurality of the quad-twisted shielded wires is the same as the number of outdoor signal cables.
7. The railway signal cable end-to-end splice cabinet of claim 1, further comprising a temperature monitoring alarm device; the temperature monitoring and alarming device comprises a plurality of monitoring ports, wherein the monitoring ports are respectively connected with the cable terminating junction box and used for acquiring the real-time temperature of the outdoor signal cable and alarming when the real-time temperature of the outdoor signal cable exceeds the set temperature.
8. The railway signal cable end-to-end splice cabinet of claim 1, further comprising a current collection device; the current acquisition device comprises a lightning current and power frequency current acquisition port, and the acquisition port is arranged on the grounding connecting line and is used for acquiring and recording lightning current and power frequency heavy current.
9. The railway signal cable end-to-end splice cabinet of any of claims 1-8, wherein the cabinet body comprises a top panel, a bottom panel, a front side panel, a rear side panel, a left side panel, and a right side panel.
10. The railway signal cable terminating cabinet of claim 9, wherein the bottom plate is provided with a plurality of first through holes for introducing a plurality of outdoor signal cables; a plurality of outdoor signal cables respectively pass through the first through holes;
a plurality of second through holes are formed in the top plate and used for leading out a plurality of groups of the four-core-set twisted shielding wires; and a plurality of groups of the four-core group twisted shielding wires respectively pass through the second through holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020732646.XU CN211859565U (en) | 2020-05-07 | 2020-05-07 | Railway signal cable terminating connection cabinet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020732646.XU CN211859565U (en) | 2020-05-07 | 2020-05-07 | Railway signal cable terminating connection cabinet |
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| CN211859565U true CN211859565U (en) | 2020-11-03 |
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| CN202020732646.XU Active CN211859565U (en) | 2020-05-07 | 2020-05-07 | Railway signal cable terminating connection cabinet |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114883890A (en) * | 2022-05-26 | 2022-08-09 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Connection method and structure between grounding electrode diversion center terminal tower and drainage cable |
| CN115102132A (en) * | 2022-05-26 | 2022-09-23 | 汤国军 | Novel railway signal cable terminating method and terminating box |
-
2020
- 2020-05-07 CN CN202020732646.XU patent/CN211859565U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114883890A (en) * | 2022-05-26 | 2022-08-09 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Connection method and structure between grounding electrode diversion center terminal tower and drainage cable |
| CN115102132A (en) * | 2022-05-26 | 2022-09-23 | 汤国军 | Novel railway signal cable terminating method and terminating box |
| WO2023226267A1 (en) * | 2022-05-26 | 2023-11-30 | 南方电网科学研究院有限责任公司 | Method and structure for connecting diversion center terminal support of grounding electrode to drain cable |
| CN115102132B (en) * | 2022-05-26 | 2024-02-13 | 中铁电气化局集团第三工程有限公司 | Novel railway signal cable end forming method and end forming box |
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