CN215417599U

CN215417599U - Train shielding cable convenient to disassemble

Info

Publication number: CN215417599U
Application number: CN202121979825.4U
Authority: CN
Inventors: 孙倩
Original assignee: Shanghai Alstom Communications Electric Co ltd
Current assignee: Shanghai Alstom Communications Electric Co ltd
Priority date: 2021-08-23
Filing date: 2021-08-23
Publication date: 2022-01-04
Anticipated expiration: 2031-08-23

Abstract

The application relates to a train shielding cable convenient to disassemble, which comprises an outer sheath, an inner sheath coaxially arranged in the outer sheath and a plurality of signal wires arranged in the inner sheath, wherein a shielding layer, a flame-retardant layer, a moisture-proof layer and an insulating layer are sequentially arranged in the inner sheath from outside to inside, and the plurality of signal wires are uniformly distributed in the circumference; the outer sheath is unfolded along the axis direction, one side of the outer sheath along the axis direction is provided with a U-shaped clamping block, and the other side of the outer sheath is provided with a U-shaped clamping groove; the inner sheath expands along the axis direction, and one side of the inner sheath along the axis direction is provided with a trapezoidal clamping groove, and the other side of the trapezoidal clamping block is provided with a trapezoidal clamping groove which is mutually clamped with the trapezoidal clamping block. This application keeps away from the U-shaped draw-in groove through the U-shaped fixture block and expandes the oversheath along the axis direction, keeps away from trapezoidal draw-in groove through trapezoidal fixture block to expand the inner sheath along the axis direction, so that the staff changes the part that falls the damage, makes things convenient for the staff to dismantle installation shielding cable then.

Description

Train shielding cable convenient to disassemble

Technical Field

The application relates to the field of shielded cables, in particular to a train shielded cable convenient to disassemble.

Background

At present, no matter a subway or a high-speed rail, the electromagnetic noise environment of a rail train is complex in the application process, the radiation and conduction of the electromagnetic noise can seriously interfere the normal work of electromechanical equipment, and the carrier of electromagnetic propagation is a cable used for transmission in the train equipment, so that in order to prevent the electromagnetic interference to the train, workers use a shielding cable for the train, and the shielding cable has the effect of resisting the electromagnetic interference factor by adding a shielding layer outside the transmission cable, and is one of indispensable components of the rail train.

But when the wire of one of them department of shielded cable can not be used, whole shielded cable all will not be used, and the staff can't be with the inside of shielded cable maintenance to demolish the change with whole shielded cable, increase the cost of maintenance of shielded cable then.

SUMMERY OF THE UTILITY MODEL

In order to facilitate the staff to dismantle the shielding cable, this application provides a train shielding cable of convenient dismantlement.

The application provides a train shielding cable of convenient dismantlement adopts following technical scheme:

a train shielding cable convenient to disassemble comprises an outer sheath, an inner sheath coaxially arranged in the outer sheath and a plurality of signal wires arranged in the inner sheath, wherein a shielding layer, a flame-retardant layer, a moisture-proof layer and an insulating layer are sequentially arranged in the inner sheath from outside to inside, and the plurality of signal wires are uniformly distributed in the circumference;

the outer sheath is unfolded along the axis direction, one side of the outer sheath along the axis direction is provided with a U-shaped clamping block, and the other side of the outer sheath is provided with a U-shaped clamping groove which is mutually clamped with the U-shaped clamping block;

the inner sheath expands along the axis direction, one side of the inner sheath along the axis direction is provided with a trapezoidal fixture block, and the other side is provided with a trapezoidal clamping groove mutually clamped with the trapezoidal fixture block.

Through adopting above-mentioned technical scheme, when the shielded cable has a damage, at first the U-shaped fixture block and the U-shaped draw-in groove with the shielded cable oversheath open, thereby expand the oversheath along the axis direction, secondly keep away from trapezoidal draw-in groove with the trapezoidal fixture block of inner sheath, thereby expand inner sheath ampere axis direction, and then signal conductor exposes, through changing the normal use of the part of damage in order to guarantee the shielded cable, roll up outer sheath and inner sheath along the axis direction again, the staff of being convenient for then dismantles the shielded cable.

Preferably, the inner peripheral wall of the outer sheath is provided with a waterproof sealing layer, and the waterproof sealing layer is arranged along the axis direction of the outer sheath.

Through adopting above-mentioned technical scheme, when the outside of shielding cable was stained with water, waterproof sealing layer avoided the inside signal conductor of shielding cable because of being stained with water and the condition that can not use to improve the structural stability of shielding cable.

Preferably, the center of the arrangement of the plurality of signal wires is provided with a tensile pipe, and the tensile pipe is arranged along the axis direction of the outer sheath.

Through adopting above-mentioned technical scheme, when the staff when dragging the shielding cable, the shielding cable leads to the shielding cable to warp or even damage because of the pulling force when dragging, and the tensile pipe makes the shielding cable non-deformable when dragging to alleviate the harm that pulling force caused the shielding cable.

Preferably, a plurality of wire clamping blocks used for limiting the position of the signal wire are arranged between the tensile tube and the inner sheath.

Through adopting above-mentioned technical scheme, when shielding cable inside has many signal conductor, mutual extrusion friction easily between many signal conductor, the card line piece is put in order signal conductor respectively, avoids between the signal conductor because mutual friction and extrusion, and the signal conductor that leads to damages the condition that can not use.

Preferably, the wire clamping block comprises two arc-shaped clamping strips which are oppositely arranged in the opening direction, one of the two arc-shaped clamping strips is arranged on the outer peripheral wall of the tensile tube, the other arc-shaped clamping strip is arranged on the inner peripheral wall of the inner sheath, and the signal conducting wire is positioned between the two arc-shaped clamping strips.

By adopting the technical scheme, when the wire clamping block works, two arc-shaped clamping strips of the same wire clamping block simultaneously clamp a signal conductor, and the end face of the arc-shaped clamping strip at the position of clamping the signal conductor is arc-shaped, so that the damage of clamping on the signal conductor is reduced.

Preferably, a plurality of movable sliding sleeves which are used for conveniently taking the shielding cable are coaxially arranged on the outer protective sleeve.

Through adopting above-mentioned technical scheme, when the staff was installing or demolishd the shielding cable, need point to clip the one end of shielding cable and carry out work, the shielding cable surface is smooth, and it is difficult for pressing from both sides tightly to point to set up two movable sliding sleeves at the both ends of shielding cable, thereby the staff clip the movable sliding sleeve through the finger and make things convenient for the staff to install or dismantle the shielding cable.

Preferably, the movable sliding sleeve is a threaded pipe, and the two ends of the outer sheath along the axis direction are both provided with threads for being in threaded connection with the movable sliding sleeve.

Through adopting above-mentioned technical scheme, the activity sliding sleeve passes through the screw thread and slides on the oversheath to adjust the position of activity sliding sleeve, and then make things convenient for the staff through cliping the activity sliding sleeve in order to install or dismantle shielded cable.

Preferably, the peripheral wall of the movable sliding sleeve is provided with a plurality of anti-skidding lugs.

Through adopting above-mentioned technical scheme, when the staff was cliping movable sliding sleeve, staff's finger contact skid proof block to the frictional force of increase finger and movable sliding sleeve breaks away from staff, in order to reduce movable sliding sleeve's risk.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the outer sheath can be far away from the U-shaped clamping groove through the U-shaped clamping block so as to be unfolded along the axis direction, and the inner sheath can be far away from the trapezoidal clamping groove through the trapezoidal clamping block so as to be unfolded along the axis direction, so that the signal wire is exposed, and therefore, workers can conveniently detach the shielding cable;

2. two arc-shaped clamping strips of the same wire clamping block can clamp one signal wire, so that the condition that a plurality of signal wires cannot be normally used due to mutual friction extrusion is prevented;

3. the staff can be through cliping movable sliding sleeve in order to install or dismantle the shielding cable, and movable sliding sleeve can be through the slip of screw thread at the outer sheath to adjust the position of movable sliding sleeve, and then make things convenient for the staff to install or dismantle the shielding cable.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a schematic view of the internal structure of the inner sheath in the embodiment of the present application.

FIG. 3 is a diagram illustrating the position relationship of the movable sliding sleeve in the embodiment of the present application.

In the figure: 1. an outer sheath; 2. an inner sheath; 21. a shielding layer; 22. a flame retardant layer; 23. a moisture barrier; 24. an insulating layer; 3. a signal conductor; 4. a U-shaped clamping block; 5. a U-shaped clamping groove; 6. a trapezoidal clamping groove; 7. a trapezoidal fixture block; 8. a waterproof sealing layer; 9. a tensile pipe; 10. a wire clamping block; 11. an arc-shaped clamping strip; 12. a movable sliding sleeve; 13. and an anti-slip bump.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses train shielding cable convenient to detach. Referring to fig. 1 and 2, the shielded cable includes an outer sheath 1, an inner sheath 2, and a plurality of signal conductors 3.

Inner sheath 2 and outer sheath 1 coaxial coupling just are located the sleeve of outer sheath 1, the internal perisporium of outer sheath 1 is fixed with waterproof sealing layer 8, waterproof sealing layer 8 supports tightly each other with the periphery wall of inner sheath 2, a plurality of signal conductor 3 insert in the sleeve of inner sheath 2 along the axis direction of inner sheath 2, and arrange along the even interval of circumference, the center of laying of a plurality of signal conductor 3 is provided with the tensile pipe 9 of avoiding shielding cable deformation, be provided with the card line piece 10 of injecing signal conductor 3 position between tensile pipe 9 and the inner sheath 2.

As shown in fig. 1 and 2, the outer sheath 1 is unfolded along the axial direction, one side of the outer sheath 1 along the axial direction is provided with a U-shaped fixture block 4, the other side is provided with a U-shaped clamping groove 5, the inner sheath 2 is unfolded along the axial direction, one side of the inner sheath 2 along the axial direction is provided with a trapezoidal fixture block 7, and the other side is provided with a trapezoidal clamping groove 6; the inner sheath 2 is sequentially provided with a shielding layer 21, a flame retardant layer 22, a moisture-proof layer 23 and an insulating layer 24 from outside to inside so as to ensure that the signal conductor 3 is not interfered during working and has the functions of fire prevention, moisture prevention and insulation.

When the shielded cable has a damage, keep away from U-shaped draw-in groove 5 through U-shaped fixture block 4 in order to open oversheath 1, keep away from trapezoidal draw-in groove 6 through trapezoidal fixture block 7 in order to open inner sheath 2 for signal conductor 3 exposes, and then makes things convenient for the staff to change the position of damage, and then makes things convenient for the staff to dismantle shielded cable.

Referring to fig. 2, card line piece 10 is provided with a plurality ofly, and card line piece 10 sets up with signal conductor 3 one-to-one, same card line piece 10 includes that two opening directions lay arc card strip 11 relatively, two arc card strips 11 are fixed on the internal perisporium of inner sheath 2 for one of them, another sets up on the periphery wall of tensile pipe 9, signal conductor 3 is located between two arc card strips 11, two arc card strips 11 all support the periphery wall of tight signal conductor 3, with press from both sides tight signal conductor 3, avoid many signal conductor 3 mutual extrusion and friction, and then lead to signal conductor 3 to damage the condition that can not use.

Referring to fig. 1 and 3, the outer sheath 1 is screwed with two movable sliding sleeves 12 along the peripheral wall of the axis direction, the two movable sliding sleeves 12 are respectively slidably arranged at two ends of the outer sheath 1 along the axis direction, and a plurality of anti-slip blocks 13 are arranged on the peripheral wall of the two movable sliding sleeves 12.

When the shielding cable is dismantled to the staff, through cliping movable sliding sleeve 12 to prevent that the shielding cable from sliding, thereby demolish the shielding cable, skid proof block 13 increases the frictional force between staff and the movable sliding sleeve 12, makes movable sliding sleeve 12 be difficult for breaking away from the staff, and then improves staff's dismantlement efficiency.

The implementation principle of the train shielding cable convenient to detach in the embodiment of the application is as follows: when the staff demolishs the shielded cable of damage, at first the staff cliies movable sliding sleeve 12, will shield the cable and demolish from equipment, secondly will move about sliding sleeve 12 screw thread and revolve from oversheath 1, keep away from U-shaped draw-in groove 5 with U-shaped fixture block 4 to open oversheath 1, keep away from trapezoidal draw-in groove 6 with trapezoidal fixture block 7, in order to open inner sheath 2, signal conductor 3 exposes, then will shield the position of cable damage and change, finally make things convenient for the staff to dismantle shielded cable.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a train shielding cable of convenient dismantlement which characterized in that: the cable comprises an outer sheath (1), an inner sheath (2) coaxially arranged in the outer sheath (1), and a plurality of signal conductors (3) arranged in the inner sheath (2), wherein a shielding layer (21), a flame retardant layer (22), a moisture-proof layer (23) and an insulating layer (24) are sequentially arranged in the inner sheath (2) from outside to inside, and the plurality of signal conductors (3) are uniformly distributed in a circumferential manner;

the outer sheath (1) is unfolded along the axis direction, one side of the outer sheath (1) along the axis direction is provided with a U-shaped clamping block (4), and the other side of the outer sheath is provided with a U-shaped clamping groove (5) which is mutually clamped with the U-shaped clamping block (4);

the inner sheath (2) expands along the axis direction, one side of the inner sheath (2) along the axis direction is provided with a trapezoidal clamping block (7), and the other side is provided with a trapezoidal clamping groove (6) which is mutually clamped with the trapezoidal clamping block (7).

2. The train shielding cable convenient to disassemble as claimed in claim 1, wherein: the inner peripheral wall of the outer sheath (1) is provided with a waterproof sealing layer (8), and the waterproof sealing layer (8) is arranged along the axis direction of the outer sheath (1).

3. The train shielding cable convenient to disassemble as claimed in claim 1, wherein: the center of the signal wires (3) is provided with a tensile pipe (9), and the tensile pipe (9) is arranged along the axis direction of the outer sheath (1).

4. The train shielding cable convenient to disassemble as claimed in claim 3, wherein: a plurality of wire clamping blocks (10) which are respectively used for limiting the position of the signal wire (3) are arranged between the tensile pipe (9) and the inner sheath (2).

5. The train shielding cable convenient to disassemble as claimed in claim 4, wherein: the wire clamping block (10) comprises two arc-shaped clamping strips (11) which are oppositely arranged in the opening direction, one of the two arc-shaped clamping strips (11) is arranged on the outer peripheral wall of the tensile tube (9), the other arc-shaped clamping strip is arranged on the inner peripheral wall of the inner sheath (2), and the signal conductor (3) is positioned between the two arc-shaped clamping strips (11).

6. The train shielding cable convenient to disassemble as claimed in claim 1, wherein: the outer sheath (1) is coaxially provided with a plurality of movable sliding sleeves (12) which are used for conveniently taking the shielding cables.

7. The train shielding cable convenient to disassemble as claimed in claim 6, wherein: the movable sliding sleeve (12) is a threaded pipe, and threads used for being in threaded connection with the movable sliding sleeve (12) are arranged at two ends of the outer sheath (1) along the axis direction.

8. The train shielding cable convenient to disassemble as claimed in claim 7, wherein: the periphery wall of the movable sliding sleeve (12) is provided with a plurality of anti-skidding lugs (13).