CN214674036U - Interval cable protection device of subway - Google Patents

Abstract

The utility model discloses a subway interval cable protection device, which is L-shaped and comprises a first part and a second part; the first part is a rectangular through pipe and is used for being sleeved on the supporting arm of the cable bracket in a penetrating way and bearing a cable; the second portion is arranged at one end of the first portion, is of a cylindrical and hollow structure and is used for limiting the cable to slide out of the first portion. The subway section cable protection device prevents the cable from falling into the rail entering area through the second part; and the top surface of the first part and the connection part of the two side surfaces are provided with chamfer structures, so that the contact points are prevented from stress concentration, abrasion and damage to the cable. The utility model provides a subway interval cable protection device low in preparation cost can show and reduce subway line trouble, reduced maintenance work load, ensure the safe operation of train.

Description

Interval cable protection device of subway

Technical Field

The utility model belongs to the cable protection field, concretely design an inter-zone cable protection device of subway.

Background

The cable support of the bridge section is generally a right-angle support and is suitable for cables laid horizontally, but when the cables are laid on a non-horizontal path, the cables at the bending part and the cable support bracket arms generally only have one contact point, and the stress is concentrated, as shown in fig. 1, wherein a is the cables, and B is the cable support bracket arms (the section of the cable support bracket arms is in an L shape). In order to avoid the cable from being worn by force, workers usually pad the bracket supporting arm with insulating rubber, and the method has poor durability and needs regular inspection and maintenance.

The cable expend with heat and contract with cold that the sudden change of temperature caused frequently vibrations that the train travel produced for the position of cable on the cable support takes place to remove, and the removal in-process, cable support trailing arm can cut, wear and tear cable oversheath, causes cable main insulation damage, cable breakdown even. In addition, the large displacement may cause the cable to fall into the rail running section, as shown in fig. 2, which poses a serious threat to the driving safety of the subway.

SUMMERY OF THE UTILITY MODEL

For understanding the interval scheduling problem of non-horizontal laying section cable support damage cable and cable invasion rail row that drops, the utility model provides a subway interval cable protection device.

The utility model provides a subway interval cable protection device, which comprises a first part and a second part;

the first part is a rectangular through pipe and is used for being sleeved on the supporting arm of the cable bracket in a penetrating way and bearing a cable;

the second part is cylindrical and is of a hollow structure, is arranged at one end of the first part and is used for limiting the cable to slide out of the first part.

Preferably, the subway section cable protection device further comprises a connecting part;

the connecting part is used for connecting the first part and the second part.

Preferably, the subway interval cable protection device is L-shaped and made of Q235 carbon steel.

Preferably, the protection device for cables between subways is suitable for right-angled cable supports, which comprise cable support brackets.

Preferably, the height of the cavity of the first portion is greater than the height of the cable holder bracket, and the width of the cavity of the first portion is greater than the width of the cable holder bracket.

Preferably, the first portion comprises a top surface, a bottom surface and two side surfaces between the top surface and the bottom surface;

the first portion carries the cable through the top surface;

and the joints of the top surface and the two side surfaces are respectively provided with a chamfer structure.

Preferably, the top surface of the first part is provided with a plurality of through holes, and the corresponding positions of the bottom surface are provided with the same through holes;

or a plurality of through holes are arranged on one side surface of the first part, and the same through holes are arranged on the corresponding positions of the other side surface;

the through holes are round holes or waist-shaped holes.

Preferably, the subway interval cable protection device is fixedly connected with the cable support bracket through a fastener.

Preferably, the fastener is a square-neck bolt and a matched nut, or an inclined large flat-head inner hexagonal bolt and a matched nut.

Preferably, the square-neck bolt penetrates through the waist-shaped hole to clamp and fix the subway interval cable protection device and the cable support bracket;

and the inclined large flat-head inner hexagon bolt penetrates through the circular hole to clamp and fix the subway interval cable protection device and the cable support bracket.

Compared with the prior art, the subway interval cable protection device provided by the utility model is designed into an L shape, and the cable is effectively prevented from falling into the rail traveling zone through the second part; and the top surface of the first part and the connection part of the two side surfaces are provided with chamfer structures, so that the contact point stress concentration, abrasion and damage of the cable and the device are prevented. The utility model provides a subway interval cable protection device has improved the problem that non-horizontal laying section cable support damaged the cable, has solved the cable again simultaneously and has dropped invasion rail line district problem. The utility model provides a subway interval cable protection device low in preparation cost can show and reduce subway line trouble, reduced maintenance work load, ensure the safe operation of train.

Drawings

FIG. 1 is a schematic view showing a state where a cable at a bend is in contact with a bracket arm of a cable holder;

FIG. 2 is a schematic view of a cable being stacked on a cable holder bracket;

fig. 3 is a schematic structural diagram of a subway interval cable protection device in the embodiment of the present invention;

FIG. 4 is a top view of the subway section cable protection device with fasteners;

FIG. 5 is a side view of a subway section cable protection device equipped with fasteners;

fig. 6 is a schematic view of a state in which a cable is stacked on the cable protection device in the subway section;

fig. 7 is a schematic view of a contact state between a cable at a bend and a cable protection device in a subway section.

Detailed Description

The present invention will be further described by the detailed description of preferred embodiments with reference to the attached drawings.

Fig. 3 is a schematic structural diagram of a subway interval cable protection device in the embodiment of the present invention; fig. 4 is a top view of the subway section cable protection device equipped with fasteners. Referring to fig. 3 and 4, the present invention provides a protection device for a subway interval cable, which comprises a first portion 100, a second portion 200, and a connecting portion 300 connecting the first portion and the second portion. Fig. 5 is a side view of the subway section cable protection device equipped with the fastening member, i.e., a view in the direction of both ends of the first portion 100.

The utility model provides a subway interval cable protection device, first portion 100, second portion 200 and connecting portion 300 promptly adopt Q235 carbon steel preparation for the mechanical strength of guarantee device.

The utility model provides a subway interval cable protection device is the L type, and first portion 100 and second portion 200 set up in mutually perpendicular's direction. The first part 100 is a rectangular through pipe and can be conveniently sleeved on a supporting arm of a cable bracket; the protection device for the cable between the metro sections carries the cable a through the first portion 100. In order to reduce the weight of the device and avoid abrasion of the cables, the second part is designed to be cylindrical and hollow, is positioned at one end of the first part and is used for limiting the movement of the cables and preventing the stacked cables from sliding out of the first part and falling into a rail running area, as shown in fig. 6. The connecting part 300 is welded and fixed with the first part 100 and the second part 200; the utility model discloses do not limit to the concrete shape structure of connecting portion 300 of connecting first portion and second portion, can design according to actual demand, explain very much.

The utility model provides an interval cable protection device of subway is applicable to right angle shape cable support C, cable support C contains cable support trailing arm B. In the embodiment of the present invention, the cross-section of the bracket arm B is L-shaped, as shown in fig. 1 and 7.

When preparing the first portion 100, the height of the inner cavity is required to be greater than the height of the cable holder bracket B, and the width of the inner cavity is required to be greater than the width of the cable holder bracket B, so that the first portion 100 can accommodate the cable holder bracket B.

The first portion 100 includes a top surface 110, a bottom surface 120, and two side surfaces 130, 140 between the top and bottom surfaces. The metro area cable protection device carries the cable through the top surface 110. The junction between the top surface 110 and the two side surfaces 130 and 140 is provided with a chamfer structure respectively, so as to increase the contact area between the cable a and the first portion 100, and prevent stress concentration and abrasion of the cable, as shown in fig. 7.

In order to fixedly connect the subway section cable protection device with the cable support C, a plurality of through holes are formed in the first portion 100. Specifically, a plurality of through holes are formed in the top surface 110, and the same through holes are formed in the corresponding positions of the bottom surface 120; or a plurality of through holes are arranged on the side surface 130, and the same through holes are also arranged on the corresponding positions of the side surface 140. The through holes can be circular holes 150, kidney-shaped holes 160, or both circular holes 150 and kidney-shaped holes 160.

And the subway interval cable protection device is fixedly connected with the cable support bracket through a fastener. The fasteners are large-inclined flat-head inner hexagon bolts 410 and matched nuts, or square-neck bolts 420 and matched nuts. Specifically, the surface of the cable holder bracket B parallel to the top surface 110 is a first surface thereof, and the surface parallel to the side surface 130 is a second surface thereof; the first side has a through hole corresponding to the top surface 110, and the second side has a through hole corresponding to the side surface 130. An inclined large flat-head inner hexagon bolt 410 is adopted to penetrate through the top surface 110 of the first part, the first surface of the cable support bracket B and the circular hole 150 on the bottom surface 120 of the first part, and a square-neck bolt 420 is adopted to penetrate through the top surface 110 of the first part, the first surface of the cable support bracket B and the waist-shaped hole 160 on the bottom surface 120 of the first part, and is clamped and fixed through a matched nut; or the inclined large flat-head inner hexagon bolt 410 penetrates through the side surface 130 of the first part, the second surface of the cable support bracket B and the round hole 150 on the side surface 120 of the first part, and the square-neck bolt 420 penetrates through the side surface 130 of the first part, the second surface of the cable support bracket B and the waist-shaped hole 160 on the side surface 120 of the first part, and is clamped and fixed through a matched nut, so that the subway interval cable protection device is fixedly arranged on the cable support.

While the present invention has been described in detail with reference to the preferred embodiments thereof, it should be understood that the above description should not be taken as limiting the present invention. Numerous modifications and alterations to the present invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be limited only by the attached claims.

Claims (10)

1. A protection device for cables between subway zones is characterized by comprising a first part and a second part;

the first part is a rectangular through pipe and is used for being sleeved on the supporting arm of the cable bracket in a penetrating way and bearing a cable;

the second part is cylindrical and is of a hollow structure, is arranged at one end of the first part and is used for limiting the cable to slide out of the first part.

2. The inter-subway section cable protection device of claim 1, further comprising a connection portion;

the connecting part is used for connecting the first part and the second part.

3. A subway section cable protection device as claimed in claim 1 or 2, wherein said subway section cable protection device is L-shaped and is made of Q235 carbon steel.

4. An inter-subway cable protection device as claimed in claim 1, wherein said inter-subway cable protection device is adapted for use with a right-angled cable support, said cable support comprising a cable support bracket.

5. A subway section cable protection apparatus as claimed in claim 4, wherein the height of the cavity of the first portion is greater than the height of said cable holder bracket, and the width of the cavity of the first portion is greater than the width of said cable holder bracket.

6. A metro area cable protection device according to claim 1, wherein the first portion comprises a top surface, a bottom surface, and two side surfaces between the top surface and the bottom surface;

the first portion carries the cable through the top surface;

and the joints of the top surface and the two side surfaces are respectively provided with a chamfer structure.

7. A subway section cable protection device as claimed in claim 6, wherein the top surface of the first portion is provided with a plurality of through holes, and the bottom surface is provided with the same through holes at corresponding positions;

or a plurality of through holes are arranged on one side surface of the first part, and the same through holes are arranged on the corresponding positions of the other side surface;

the through holes are round holes or waist-shaped holes.

8. The metro area cable protection device of claim 1, wherein the metro area cable protection device is fixedly connected to the cable support bracket by a fastener.

9. A subway section cable protection device as claimed in claim 8, wherein said fasteners are square neck bolts and mating nuts, or large flat head hexagon socket head bolts and mating nuts.

10. The subway interval cable protection device as claimed in claim 9, wherein said square neck bolt passes through waist-shaped hole to clamp and fix said subway interval cable protection device and cable support bracket;

and the inclined large flat-head inner hexagon bolt penetrates through the circular hole to clamp and fix the subway interval cable protection device and the cable support bracket.

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