CN113838604A - Leakage cable for rail transit - Google Patents
Leakage cable for rail transit Download PDFInfo
- Publication number
- CN113838604A CN113838604A CN202110938746.7A CN202110938746A CN113838604A CN 113838604 A CN113838604 A CN 113838604A CN 202110938746 A CN202110938746 A CN 202110938746A CN 113838604 A CN113838604 A CN 113838604A
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- CN
- China
- Prior art keywords
- protection
- slotted hole
- fixedly connected
- cable
- outer conductor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000007246 mechanism Effects 0.000 claims abstract description 41
- 239000004020 conductor Substances 0.000 claims abstract description 38
- 238000001125 extrusion Methods 0.000 claims abstract description 24
- 238000005728 strengthening Methods 0.000 claims abstract description 20
- 239000010410 layer Substances 0.000 claims description 25
- 229910000639 Spring steel Inorganic materials 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 6
- 239000004065 semiconductor Substances 0.000 claims description 3
- 239000002344 surface layer Substances 0.000 claims description 3
- 238000005452 bending Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract description 2
- 230000001771 impaired effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/24—Devices affording localised protection against mechanical force or pressure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/40—Insulated conductors or cables characterised by their form with arrangements for facilitating mounting or securing
Landscapes
- Installation Of Indoor Wiring (AREA)
Abstract
The invention provides a leakage cable for rail transit, which comprises an inner conductor, an insulating layer, an outer conductor, a slotted hole protection mechanism, a connection strengthening mechanism and an outer sheath, wherein the surface of the inner conductor is fixedly connected with the insulating layer, the surface of the insulating layer is fixedly connected with the outer conductor, a plurality of groups of slotted holes are arranged on the surface of the outer conductor, the slotted hole protection mechanism and the connection strengthening mechanism are arranged between the outer sheath and the outer conductor, and the outer sheath is positioned on the outermost layer of the leakage cable. This track traffic is with leaking cable is according to the current slotted hole that leaks the cable and exist and lacks the problem of protection, designs not only can weaken local external force that receives, reduces the damage degree of bending, can carry out the special construction of comprehensive protection to the slotted hole moreover to effectual general leakage cable of having solved lacks the protection architecture to the slotted hole, when leaking the cable and receiving the extrusion and bend, the slotted hole of outer conductor distorts easily and is impaired, and then influences the problem of leaking the normal use of cable.
Description
Technical Field
The invention relates to the technical field of rail transit equipment, in particular to a leakage cable for rail transit.
Background
The leakage cable is provided with a series of slotted holes or gaps on an outer conductor of a coaxial pipe, so that partial energy of electromagnetic waves transmitted in the cable leaks to a space along the line from the slotted holes, the attenuation of field intensity is uniform and has no fluctuation, the leakage cable is easy to be received by receiving equipment, the transmission frequency range of the leakage cable is wide, the leakage cable can be used for communication and can transmit various data information, signals are uniformly covered, and the leakage cable is particularly suitable for narrow spaces such as tunnels, the leakage cable is required to be used in rail transit, the slotted holes of the outer conductor on the leakage cable are key structures, the slotted holes are easy to be extruded and twisted when being bent and pressed, the damage of the slotted holes easily influences the signal transmission effect, the damage of the slotted holes is avoided, the condition that the leakage cable needs to be bent and inspected every day in the rail transit, the conventional leakage cable is lack of a protection structure for the slotted holes, the outer conductor is weak near the slotted holes, and the general leakage cable is lack of a protection structure for the slotted holes, when the leakage cable is extruded and bent, the slotted hole of the outer conductor is easy to be distorted and damaged, and the normal use of the leakage cable is further influenced, so that the leakage cable for rail transit is needed.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a leakage cable for rail transit, which solves the problems that a common leakage cable lacks a protection structure for a slotted hole, and when the leakage cable is extruded and bent, the slotted hole of an outer conductor is easy to twist and damage, so that the normal use of the leakage cable is influenced.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a leakage cable for rail transit comprises an inner conductor, an insulating layer, an outer conductor, a slotted hole protection mechanism, a connection strengthening mechanism and an outer sheath, wherein the insulating layer is fixedly connected to the surface of the inner conductor, the outer conductor is fixedly connected to the surface of the insulating layer, a plurality of groups of slotted holes are formed in the surface of the outer conductor, the slotted hole protection mechanism and the connection strengthening mechanism are arranged between the outer sheath and the outer conductor, and the outer sheath is located on the outermost layer of the leakage cable.
Preferably, each group of the slotted holes comprises a plurality of rectangular slotted holes, the same group of the slotted holes are distributed on the circumference of the surface layer of the outer semiconductor, each group of the slotted holes corresponds to a slotted hole protection mechanism, and the slotted hole protection mechanisms and the connection strengthening mechanisms are distributed in a staggered mode.
Preferably, slotted hole protection machanism includes that flexible protection fills up, several and the communicating hollow protection tube of slotted hole quantity and elasticity stripper plate, the inside of flexible protection pad is inlayed and is had the hollow protection tube of several, adjacent two elasticity stripper plate of fixedly connected with between the hollow protection tube, the material of elasticity stripper plate is the spring steel, the material of hollow protection tube is rubber, the inside of hollow protection tube is sealed form, the surface of elasticity stripper plate is the arc form.
Preferably, the outer ring of the flexible protection pad is fixedly connected with a tightening plate, two ends of the tightening plate are mutually overlapped, two ends of the tightening plate are fixedly connected with a limiting ring, one end of the tightening plate is connected with the inner wall of the limiting ring on the other end of the tightening plate in a sliding mode, the tightening plate is made of spring steel, the inner side face of the tightening plate is connected with the elastic extrusion plate in a sliding mode, a deformation net is sleeved on the outer side of the tightening plate, the deformation net is made of spring steel, and the surface of the deformation net is fixedly connected with the inner wall of the outer sheath.
Preferably, each the inner wall of hollow protection tube is two curb plates of equal fixedly connected with, and two sets of arc extrusion strips of fixedly connected with between two curb plates are provided with a central power pole between two sets of arc extrusion strips.
Preferably, the connection strengthening mechanism comprises an elastic ring and arc-shaped connecting rods, the surface of the elastic ring is fixedly connected with the inner wall of the outer sheath, a plurality of arc-shaped connecting rods are fixedly connected with the inner side surface of the elastic ring, and two ends of each arc-shaped connecting rod are fixedly connected with one end of a central force rod in the hollow protection tube on different slotted hole protection mechanisms respectively.
Preferably, the connection strengthening mechanism further comprises a flexible rubber layer, the elastic ring and the connecting rod are embedded inside the flexible rubber layer, and the surface of the flexible rubber layer is fixedly connected with the surface of the outer conductor.
(III) advantageous effects
(1) According to the invention, by arranging the slotted hole protection mechanism, when the leakage cable is extruded and bent, the hollow protection pipe can quickly enter the inner part of each slotted hole before the outer conductor is stressed and the slotted hole is about to deform, so that the deformation of the slotted hole is hindered, the integral strength of the outer conductor is enhanced, the slotted hole is prevented from being damaged, and in the protection process, the contact area between the hollow protection pipe and the slotted hole is increased through the side plate, so that the protection effect is enhanced.
(2) According to the invention, by arranging the elastic extrusion plates and the tightening plates, on one hand, the tightening plates can be tightened in the circumferential direction when being subjected to external force, so that force can be simultaneously applied to all the elastic extrusion plates in the circumferential direction to enable all the hollow protection pipes to enter the corresponding slotted holes for comprehensive protection, on the other hand, the elastic extrusion plates can extrude the external force onto the central force rods when being subjected to great pressure, and the arc-shaped extrusion plates and the central force rods transmit the external force in the circumferential direction between the side plates, so that the protection effect is enhanced.
(3) According to the invention, by arranging the connection strengthening mechanism, all the slotted hole protection mechanisms can be closely connected, and external force is transmitted through the connection strengthening mechanism when local stress is applied, so that local pressure can be weakened, nearby slotted hole protection mechanisms can be promoted to enter a protection state in advance, and the protection effect is enhanced.
(4) According to the invention, according to the problem that the slotted hole of the existing leakage cable is lack of protection, a special structure which can weaken local external force and reduce the bending damage degree and can comprehensively protect the slotted hole is designed, so that the problem that the slotted hole of an outer conductor is easy to twist and damage when the leakage cable is extruded and bent, and the normal use of the leakage cable is influenced due to the fact that the common leakage cable is lack of a protection structure for the slotted hole is effectively solved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of a flexible protective pad construction of the present invention;
FIG. 3 is an enlarged view of the structure of FIG. 2;
FIG. 4 is a cross-sectional view of the flexible rubber layer structure of the present invention;
fig. 5 is a side view of the curved connecting rod structure of the present invention.
The cable comprises an inner conductor 1, an insulating layer 2, an outer conductor 3, a slotted hole protection mechanism 4, a flexible protection pad 41, a hollow protection tube 42, an elastic extrusion plate 43, a tightening plate 44, a limiting ring 45, a deformation net 46, a side plate 47, an arc extrusion strip 48, a central force rod 49, a connection strengthening mechanism 5, an elastic ring 51, an arc connecting rod 52, a flexible rubber layer 53, an outer sheath 6 and a slotted hole 7.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 5, an embodiment of the present invention provides a leaky cable for rail transit, including an inner conductor 1, an insulating layer 2, an outer conductor 3, a slot 7 protection mechanism 4, a connection strengthening mechanism 5, and an outer sheath 6, where the surface of the inner conductor 1 is fixedly connected with the insulating layer 2, the surface of the insulating layer 2 is fixedly connected with the outer conductor 3, a plurality of sets of slots 7 are started on the surface of the outer conductor 3, the slot 7 protection mechanism 4 and the connection strengthening mechanism 5 are both disposed between the outer sheath 6 and the outer conductor 3, and the outer sheath 6 is located at the outermost layer of the leaky cable.
Each group of slotted holes 7 comprises a plurality of rectangular slotted holes 7, the same group of slotted holes 7 are distributed on the periphery of the surface layer of the outer semiconductor, each group of slotted holes 7 is correspondingly provided with a slotted hole 7 protection mechanism 4, the slotted hole 7 protection mechanisms 4 and the connection strengthening mechanisms 5 are distributed in a staggered manner, each slotted hole 7 protection mechanism 4 comprises a flexible protection pad 41, a plurality of hollow protection tubes 42 and elastic extrusion plates 43, the number of the hollow protection tubes 42 is communicated with the number of the slotted holes 7, the inside of each flexible protection pad 41 is embedded with a plurality of hollow protection tubes 42, an elastic extrusion plate 43 is fixedly connected between every two adjacent hollow protection tubes 42, the elastic extrusion plates 43 are made of spring steel, the hollow protection tubes 42 are made of rubber, the inside of each hollow protection tube 42 is sealed, the surface of each elastic extrusion plate 43 is arc-shaped, the outer ring of each flexible protection pad 41 is fixedly connected with a tightening plate 44, two ends of the tightening plates 44 are mutually overlapped, two ends of the tightening plates 44 are fixedly connected with a limiting ring 45, one end of the tightening plate 44 is connected with the inner wall of the limiting ring 45 on the other end of the tightening plate 44 in a sliding mode, the tightening plate 44 is made of spring steel, the inner side face of the tightening plate 44 is connected with the surface of the elastic extrusion plate 43 in a sliding mode, the outer side of the tightening plate 44 is sleeved with the deformation net 46, the deformation net 46 is made of spring steel, the surface of the deformation net 46 is fixedly connected with the inner wall of the outer sheath 6, two side plates 47 are fixedly connected to the inner wall of each hollow protection tube 42, two groups of arc-shaped extrusion strips 48 are fixedly connected between the two side plates 47, and a central force rod 49 is arranged between the two groups of arc-shaped extrusion strips 48.
Connect strengthening mechanism 5 and include elastic ring 51 and arc connecting rod 52, the surface of elastic ring 51 and the inner wall fixed connection of oversheath 6, the medial surface fixedly connected with several arc connecting rod 52 of elastic ring 51, the both ends of arc connecting rod 52 respectively with the different slotted hole 7 protection mechanism 4 on the hollow protection tube 42 one end fixed connection of central power pole 49, connect strengthening mechanism 5 and still include flexible rubber layer 53, elastic ring 51 and connecting rod embedding are in the inside of flexible rubber layer 53, the surface of flexible rubber layer 53 and the fixed surface of outer conductor 3 are connected.
When the external force is applied to the deformation net 46, the external force can extrude the tightening plate 44, the tightening plate 44 can be tightened in the instant circumferential direction, the extrusion force is synchronously applied to each elastic extrusion plate 43 in the circumferential direction, each elastic extrusion plate 43 can mutually push each hollow protection tube 42 under the action of the pressure, the hollow protection tubes 42 can be quickly clamped into the corresponding slotted holes 7 to protect the slotted holes 7, when the external force is large, the side plates 47 are attached to the inner walls of the hollow protection tubes 42, the outer sheaths 7 can be blocked by the side plates 47 to keep the overall shape unchanged and cannot be damaged even if slight change occurs in time, and at the moment, each elastic extrusion plate 43 conducts the external force in the circumferential direction through the side plates 47, the arc-shaped extrusion strips 48 and the central force rod 49 to weaken the local pressure and strengthen the overall compressive resistance, the deformation net 46 and the flexible protection pad 41 provide an elastic space for tightening the tightening plate 44, when external force acts on the flexible rubber layer 53, the elastic ring 51 and the arc connecting rod 52 resist the external force in a staggered mode, and when the arc connecting rod 52 is squeezed, the central force rods 49 on the two sides inside the hollow protection tube 42 connected with the two sides can be pressed downwards, so that the hollow protection tube 42 is attached to the inside of the slotted hole 7 in advance, and the pre-protection effect is achieved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (7)
1. The utility model provides a track traffic is with leaking cable, includes inner conductor (1), insulating layer (2), outer conductor (3), slotted hole (7) protection machanism (4), connection strengthening mechanism (5) and oversheath (6), its characterized in that: the surface of the inner conductor (1) is fixedly connected with an insulating layer (2), the surface of the insulating layer (2) is fixedly connected with an outer conductor (3), a plurality of groups of slotted holes (7) are formed in the surface of the outer conductor (3), a slotted hole (7) protection mechanism (4) and a connection strengthening mechanism (5) are arranged between an outer sheath (6) and the outer conductor (3), and the outer sheath (6) is located on the outermost layer of the leakage cable.
2. The leaky cable for rail transit as claimed in claim 1, wherein: each group of the slotted holes (7) comprises a plurality of rectangular slotted holes (7), the slotted holes (7) in the same group are distributed on the circumference of the surface layer of the outer semiconductor, each group of the slotted holes (7) is correspondingly provided with a slotted hole (7) protection mechanism (4), and the slotted hole (7) protection mechanisms (4) and the connection strengthening mechanisms (5) are distributed in a staggered mode.
3. A leaky cable for rail transit as claimed in claim 2, wherein: slotted hole (7) protection machanism (4) are including flexible protection pad (41), several and the communicating hollow protection tube (42) of slotted hole (7) quantity and elasticity stripper plate (43), the inside of flexible protection pad (41) is inlayed and is had several hollow protection tube (42), adjacent two fixedly connected with one elasticity stripper plate (43) between hollow protection tube (42), the material of elasticity stripper plate (43) is the spring steel, the material of hollow protection tube (42) is rubber, the inside of hollow protection tube (42) is sealed form, the surface of elasticity stripper plate (43) is the arc form.
4. A leaky cable for rail transit as claimed in claim 3, wherein: outer lane fixedly connected with tightener plate (44) of flexible protection pad (41), the both ends overlap each other of tightener plate (44), the equal fixedly connected with in both ends of tightener plate (44) restriction ring (45), the inner wall sliding connection of restriction ring (45) on the one end of tightener plate (44) and the other end thereof, the material of tightener plate (44) is the spring steel, the medial surface of tightener plate (44) and the surface sliding connection of elasticity stripper plate (43), deformation net (46) has been cup jointed in the outside of tightener plate (44), the material of deformation net (46) is the spring steel, the surface of deformation net (46) and the inner wall fixed connection of oversheath (6).
5. The leaky cable for rail transit as claimed in claim 4, wherein: each inner wall of the hollow protection tube (42) is fixedly connected with two side plates (47), two groups of arc-shaped extrusion strips (48) are fixedly connected between the two side plates (47), and a central force rod (49) is arranged between the two groups of arc-shaped extrusion strips (48).
6. The leaky cable for rail transit as claimed in claim 5, wherein: connect strengthening mechanism (5) including elastic ring (51) and arc connecting rod (52), the surface of elastic ring (51) and the inner wall fixed connection of oversheath (6), the medial surface fixedly connected with several arc connecting rod (52) of elastic ring (51), the both ends of arc connecting rod (52) respectively with the slotted hole (7) of difference protection mechanism (4) on the one end fixed connection of central power pole (49) in hollow protection tube (42).
7. The leaky cable for rail transit as claimed in claim 6, wherein: the connection strengthening mechanism (5) further comprises a flexible rubber layer (53), the elastic ring (51) and the connecting rod are embedded inside the flexible rubber layer (53), and the surface of the flexible rubber layer (53) is fixedly connected with the surface of the outer conductor (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110938746.7A CN113838604A (en) | 2021-08-16 | 2021-08-16 | Leakage cable for rail transit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110938746.7A CN113838604A (en) | 2021-08-16 | 2021-08-16 | Leakage cable for rail transit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113838604A true CN113838604A (en) | 2021-12-24 |
Family
ID=78960689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110938746.7A Withdrawn CN113838604A (en) | 2021-08-16 | 2021-08-16 | Leakage cable for rail transit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113838604A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115579181A (en) * | 2022-11-09 | 2023-01-06 | 江苏驰利电缆有限公司 | Fire-retardant moisture-resistant marine power cable |
-
2021
- 2021-08-16 CN CN202110938746.7A patent/CN113838604A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115579181A (en) * | 2022-11-09 | 2023-01-06 | 江苏驰利电缆有限公司 | Fire-retardant moisture-resistant marine power cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20211224 |
|
| WW01 | Invention patent application withdrawn after publication |