CN109638742B

CN109638742B - Cable bridge

Info

Publication number: CN109638742B
Application number: CN201910003738.6A
Authority: CN
Inventors: 张文亮; 周驰; 程旎; 席志成; 李海
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-01-03
Filing date: 2019-01-03
Publication date: 2020-08-11
Anticipated expiration: 2039-01-03
Also published as: CN109638742A

Abstract

The invention discloses a cable bridge, and belongs to the field of cable installation. The cable testing bridge includes two terraced limits and a plurality of crosspiece, two terraced limits mutual parallel arrangement, the one end fixed mounting of each crosspiece is on a terraced edge, the other end of each crosspiece is fixed on another terraced edge, and each crosspiece is along the length direction on terraced limit interval arrangement in proper order, the cable testing bridge still includes the air cushion, air cushion fixed mounting is on a plurality of crosspieces, the air cushion extends along the length direction on terraced limit, be provided with a plurality of first fixed orificess on the air cushion, all first fixed orificess all are used for the cartridge ribbon. The invention can absorb the vibration of the cable and prevent the cable from loosening a binding belt for fixing the cable due to the vibration.

Description

Cable bridge

Technical Field

The invention belongs to the field of cable installation, and particularly relates to a cable bridge.

Background

A cable tray is a device for laying cables, a common cable tray generally comprising: two ladder limits and a plurality of crosspiece, two ladder limits parallel arrangement each other, the one end fixed mounting of each crosspiece is on a ladder limit, and the other end of each crosspiece is fixed on another ladder limit, and each crosspiece is arranged along the length direction on ladder limit interval in proper order.

In laying cables through the cable tray, the cables are generally tied directly to the rungs by ties so that the cables are arranged along the length of the ladder sides.

In the process of implementing the invention, the inventor finds that the prior art has at least the following problems:

when the cable circulates heavy current, under the effect of electromagnetic induction phenomenon, the cable can produce the vibration for the crosspiece, and because only through ribbon fixed connection between cable and the crosspiece, so under long-time vibration, in case the ribbon appears becoming flexible, will have the risk that the cable drops.

Disclosure of Invention

The embodiment of the invention provides a cable bridge, which can slow down the vibration of a cable relative to a crosspiece under the action of an electromagnetic induction phenomenon when the cable circulates large current. The technical scheme is as follows:

the embodiment of the invention provides a cable bridge, which comprises: two ladder limits and a plurality of crosspiece, two the mutual parallel arrangement of ladder limits, each the one end fixed mounting of crosspiece is in one the ladder edge, each the other end of crosspiece is fixed in another the ladder edge, and each the crosspiece is followed the length direction on ladder limit is interval arrangement in proper order, the cable testing bridge still includes the air cushion, air cushion fixed mounting is a plurality of on the crosspiece, the air cushion is followed the length direction on ladder limit extends, be provided with a plurality of first fixed orificess on the air cushion, all first fixed orificess all is used for the cartridge ribbon.

In one implementation manner of the present invention, a plurality of first wire passing holes are disposed on the air cushion, and the first wire passing holes are sequentially arranged at intervals along a length direction of the step edge.

In another implementation manner of the invention, at least two first wire passing holes are arranged between every two adjacent rungs.

In another implementation manner of the invention, the cable tray further comprises an insulating plate, the insulating plate is fixedly mounted on each rung, the insulating plate extends along the length direction of the ladder sides, and the insulating plate is clamped between the rung and the air cushion.

In yet another embodiment of the present invention, the insulating plate and the air cushion are bonded together.

In another implementation manner of the present invention, the insulating plate is provided with a plurality of second fixing holes arranged in one-to-one correspondence with the first fixing holes, and all the second fixing holes are used for inserting the tie.

In another implementation manner of the present invention, the insulating plate is provided with a plurality of second wire passing holes arranged in one-to-one correspondence to the first wire passing holes, and the second wire passing holes are sequentially arranged at intervals along a length direction of the step edge.

In another implementation manner of the present invention, at least two second wire passing holes are disposed between every two adjacent rungs.

In another implementation manner of the present invention, the insulating plate is provided with a plurality of transverse mounting holes, the crosspiece is provided with longitudinal mounting holes arranged in a one-to-one correspondence with the transverse mounting holes, and the same bolt is inserted into each of the transverse mounting holes and the corresponding longitudinal mounting hole.

In yet another implementation of the invention, the insulating plate is an epoxy plate.

The technical scheme provided by the embodiment of the invention has the following beneficial effects:

the air cushions are arranged in the cable bridge and fixedly arranged on the rungs, so that the fixed installation of the air cushions on the rungs is realized. And, because the air cushion extends along the length direction of the ladder sides, when the cable is laid by using the cable tray, the cable can be arranged along the length direction of the air cushion. In addition, after the cable laying finishes, a plurality of first fixed orifices cartridge ribbons that set up on the rethread air cushion to make the cable can fix the ligature and connect on the air cushion, thereby utilize the air cushion to absorb the vibration that the cable produced, avoided the ribbon to take off because of the cable vibration, and then improved the installation stability of cable.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a top view of a stile provided according to an embodiment of the invention;

FIG. 2 is a top view of a cable tray provided by an embodiment of the present invention;

FIG. 3 is a schematic view of an air cushion structure provided by an embodiment of the present invention;

FIG. 4 is a cross-sectional view of a cable tray provided by an embodiment of the present invention;

FIG. 5 is a schematic diagram of an insulating board structure according to an embodiment of the present invention;

FIG. 6 is an enlarged view of a cable tray at top view A provided by an embodiment of the present invention;

FIG. 7 is an enlarged view of a cable tray section B provided by an embodiment of the present invention;

the symbols in the drawings represent the following meanings:

1-ladder edge, 11-ribbon, 2-crosspiece, 21-longitudinal installation hole, 3-air cushion, 31-first fixing hole, 32-first wire passing hole, 33-inflation hole, 4-bridge, 5-glue, 6-insulation board, 61-second fixing hole, 62-second wire passing hole, 63-transverse installation hole, 7-bolt, 8-flat cushion, 9-elastic cushion, 10-nut and 100-cable.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

An embodiment of the present invention provides a cable tray, as shown in fig. 1, the cable tray includes: two terraced limit 1 and a plurality of crosspiece 2, two terraced limit 1 mutual parallel arrangement, the one end fixed mounting of each crosspiece 2 is on one terraced limit 1, and the other end of each crosspiece 2 is fixed on another terraced limit 1, and each crosspiece 2 is along the length direction of terraced limit 1 interval arrangement in proper order.

Fig. 2 is a top view of a cable tray according to an embodiment of the present invention, and in combination with fig. 2, in this embodiment, the cable tray further includes an air cushion 3, the air cushion 3 is fixedly mounted on the plurality of rungs 2, and the air cushion 3 extends along the length direction of the ladder sides 1.

Fig. 3 is a schematic structural diagram of an air cushion according to an embodiment of the present invention, and in combination with fig. 3, specifically, a plurality of first fixing holes 31 are provided in the air cushion 3, and all the first fixing holes 31 are used for inserting the binding tape 11.

By arranging the air cushions 3 in the cable bridge, the air cushions 3 are fixedly arranged on the rungs 2, so that the air cushions 3 are fixedly arranged on the rungs 2. Also, since the air mat 3 extends in the longitudinal direction of the stile 1, when the cable 100 is laid using the cable tray, the cable 100 can be laid in the longitudinal direction of the air mat 3. In addition, after the cable 100 is laid, the cable tie 11 is inserted into the first fixing holes 31 formed in the air cushion 3, so that the cable 100 can be fixedly bound to the air cushion 3, the air cushion 3 is utilized to absorb vibration generated by the cable 100, the cable tie 11 is prevented from loosening due to vibration of the cable 100, and the installation stability of the cable 100 is improved.

In this embodiment, the air cushion 3 is provided with a plurality of first thread passing holes 32, and the first thread passing holes 32 are sequentially arranged at intervals along the length direction of the ladder side 1.

In the above implementation, when the cable 100 laid on the cable tray is required to connect with external electric equipment, the first wire passing hole 32 at a proper position can be selected, and the cable 100 can be passed through the first wire passing hole and electrically connected with the corresponding electric equipment. It should be noted that the first wire hole 32 at a suitable position may be the one first wire hole 32 that is most convenient for the cable 100 to be electrically connected to the electric equipment.

Preferably, at least two first wire passing holes 32 are provided between each adjacent two of the rungs 2.

In the above implementation manner, when a plurality of electric devices are relatively close to each other and the plurality of electric devices all need to connect the cable 100, because at least two first wire passing holes 32 are formed between two adjacent rungs 2, the cable 100 is prevented from being connected by the plurality of electric devices, and the cable 100 is prevented from being crowded in one first wire passing hole 32. And a plurality of first wire passing holes 32 can be selected, so that the most convenient and most suitable first wire passing hole 32 can be selected according to the position of the electric equipment to connect the electric equipment with the cable 100.

Alternatively, the shape of the first wire through hole 32 is a rounded rectangle, and the rounded rectangle is a shape in which four right angles are rounded.

In the above implementation, by setting the first wire passing hole 32 to be a rounded rectangle, the cable 100 can be prevented from being cut by a sharp rectangular right angle due to pulling when being connected.

Optionally, the cushion 3 is an inflatable cushion, and the inflatable cushion 3 is provided with an inflation hole 33, and the inflation hole 33 is located at the edge of the inflatable cushion 3, near the first wire passing hole 32.

In the above implementation, since the air cushion 3 is an inflatable air cushion, it is convenient for the air cushion 3 to be installed on the cable tray. When the cable bridge is installed, only the uninflated air cushion 3 needs to be fixed on the cable bridge, and after the air cushion 3 is fixed, the air cushion 3 is inflated through the inflation holes 33.

Preferably, the material of the air cushion 3 may be a TPU-like material, so that the properties of the TPU-like material may be utilized to make the air cushion 3 wear-resistant and have good elasticity, so that the air cushion 3 has good load-bearing capacity, and the air cushion 3 can resist impact and has outstanding shock-absorbing performance.

Fig. 4 is a cross-sectional view of a cable tray according to an embodiment of the present invention, referring to fig. 4, in this embodiment, the cable tray further includes an insulating plate 6, the insulating plate 6 is fixedly mounted on each rung 2, the insulating plate 6 extends along the length direction of the ladder rung 1 (see fig. 2), and the insulating plate 6 is sandwiched between the rung 2 and the air cushion 3.

In the above implementation, when a large current flows through the cable, an induced voltage is generated on the bridge 4 due to an electromagnetic induction phenomenon, and a closed electrical loop is formed between the rungs 2 on the bridge 4, so that an induced circulating current is formed between the rungs 2, and the circulating current generates heat, and when the insulating plate 6 is sandwiched between the rungs 2 and the air cushion 3, the cable 100 and the upper surface of the rung 2 can be physically insulated and isolated, so that the electromagnetic induction is avoided, and the heat generation of the rung 2 is reduced.

Preferably, the insulating plate 6 may be an epoxy resin plate.

It should be noted that, in other embodiments, the material of the insulating plate 6 may be selected according to actual requirements, for example, organic glass, nylon, and the like, which is not limited in the present invention.

Optionally, the insulating plate 6 and the gas cushion 3 are bonded together.

Preferably, in this embodiment, the insulating plate 6 and the air cushion 3 are adhered by glue 5, and the glue is AB glue.

It should be noted that, in other embodiments, glue 5 may be selected according to actual requirements, for example, UV glue, 407 glue, etc., which is not limited by the present invention.

Fig. 5 is a schematic diagram of an insulating plate structure according to an embodiment of the present invention, and with reference to fig. 5, in this embodiment, a plurality of second fixing holes 61 are provided on the insulating plate 6, the second fixing holes 61 being arranged in one-to-one correspondence with the first fixing holes 31, and all the second fixing holes 61 are used for inserting the tie 11.

In the above implementation manner, after the cable 100 is laid, because the plurality of second fixing holes 61 arranged on the insulating plate 6 and the first fixing holes 31 on the air cushion 3 are arranged in a one-to-one correspondence manner, the cable 100 can be fixedly bound to the whole formed by the adhesion of the air cushion 3 and the insulating plate 6 by using the binding tapes 11 through the second fixing holes 61 and the first fixing holes 31 (refer to fig. 4), so that the air cushion 3 is utilized to absorb the vibration generated by the cable 100, the binding tapes 11 are prevented from loosening and falling off due to the vibration of the cable 100, and the installation stability of the cable 100 is further improved.

With continued reference to fig. 5, in the present embodiment, the insulating plate 6 is provided with a plurality of second wire holes 62, and the second wire holes 62 are sequentially arranged at intervals along the length direction of the step 1.

In the above implementation, when the cable 100 laid on the cable tray is required to connect with external electric equipment, the second wire passing hole 62 at a suitable position can be selected, and the cable 100 can be passed through the second wire passing hole and electrically connected with the corresponding electric equipment. It should be noted that the second wire hole 62 at a suitable position may be one second wire hole 62 that is most convenient for the cable 100 to be electrically connected to the electric equipment.

Preferably, at least two second wire passing holes 62 are provided between each adjacent two of the rungs 2.

In the above implementation manner, when a plurality of electric devices are relatively close to each other and the plurality of electric devices all need to connect the cable 100, because at least two second wire passing holes 62 are formed between two adjacent rungs 2, the cable 100 is prevented from being connected by the plurality of electric devices, and the cable 100 is prevented from being crowded in one second wire passing hole 62. And a plurality of second wire through holes 62 are available, so that the most convenient and most suitable second wire through hole 62 can be selected according to the position of the electric equipment to connect the electric equipment with the cable 100.

Alternatively, the shape of the second wire through hole 62 is a rounded rectangle, and the rounded rectangle is a shape in which four right angles are rounded.

In the above implementation, by setting the second wire passing hole 62 to be a rounded rectangle, the cable 100 can be prevented from being cut by a sharp rectangular right angle due to pulling when being connected.

Fig. 6 is an enlarged view of a top view a of a cable tray according to an embodiment of the present invention, and with reference to fig. 6, in this embodiment, a plurality of transverse mounting holes 63 are formed in an insulating plate 6, longitudinal mounting holes 21 are formed in a crosspiece 2, the longitudinal mounting holes 21 are arranged in a one-to-one correspondence with the transverse mounting holes 63, and the same bolt 7 is inserted into each transverse mounting hole 63 and the corresponding longitudinal mounting hole 21.

In the above implementation, since the transverse mounting holes 63 and the longitudinal mounting holes 21 are both in the shape of a long strip, the bolts 7 can move in the long strip holes, when the insulating plate 6 is mounted on the crosspiece 2, the bolts 7 can be moved to adjust the positions of the insulating plate 6 and the crosspiece 2, and then the insulating plate 6 is fastened on the crosspiece 2, so that the mounting deviation of the insulating plate 6 and the crosspiece 2 can be reduced, and the application range is wide.

Fig. 7 is an enlarged view of a cable tray according to an embodiment of the present invention shown in a cross-sectional view B, and referring to fig. 7, the insulating plate 6 and the crosspiece 2 are assembled by passing the bolts 7 through the insulating plate 6, the crosspiece 2, the flat pad 8, the elastic pad 9, and the nuts 10 from top to bottom, and fastening the bolts 7.

In the above implementation, the insulating plates 6 and the crosspieces 2 are fastened together, preventing the cable 100 from being subjected to electrodynamic vibrations that cause the insulating plates 6 to come loose from the crosspieces 2 on the bridge 4.

Alternatively, in the embodiment of the present invention, the bolt 7 may be an inner hexagonal flat round head bolt.

It should be noted that, in other embodiments, the selection may be performed according to actual requirements, for example, the hexagon socket head semicircle head bolt and the hexagon socket head flower-shaped pan head bolt, which is not limited by the present invention.

Referring to fig. 7, in the embodiment of the present invention, two sides of the air cushion 3 extending in the length direction are spaced apart from two sides of the insulating plate 6 extending in the length direction, the air cushion 3 is smaller than the insulating plate 6, and a projection of the air cushion 3 on the insulating plate 6 is located inside the insulating plate 6 (see fig. 4).

In the above implementation, since the air cushion 3 is smaller than the insulating plate 6, a position is provided for the installation of the bolt 7, and heat transfer from the bolt 7 to the air cushion 3 is avoided.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A cable tray, comprising: two ladder sides (1) and a plurality of crosspieces (2), wherein the two ladder sides (1) are arranged in parallel, one end of each crosspiece (2) is fixedly arranged on one ladder side (1), the other end of each crosspiece (2) is fixed on the other ladder side (1), and the crosspieces (2) are sequentially arranged at intervals along the length direction of the ladder edge (1), characterized in that the cable bridge also comprises an air cushion (3), the air cushion (3) is fixedly arranged on a plurality of crosspieces (2), the air cushion (3) extends along the length direction of the ladder side (1), a plurality of first fixing holes (31) are formed in the air cushion (3), all the first fixing holes (31) are used for inserting binding tapes (12), the air cushion (3) is provided with a plurality of first wire passing holes (32), and the first wire passing holes (32) are sequentially arranged at intervals along the length direction of the ladder edge (1).

2. The cable tray according to claim 1, wherein at least two first wire passing holes (32) are provided between each adjacent two of the rungs (2).

3. Cable tray according to claim 1, characterized in that it further comprises insulating plates (6), said insulating plates (6) being fixedly mounted on each crosspiece (2), said insulating plates (6) extending along the length of said ladder sides (1), and said insulating plates (6) being sandwiched between said crosspieces (2) and said air cushion (3).

4. A cable tray according to claim 3, characterized in that said insulating plate (6) and said air cushion (3) are glued together.

5. A cable tray according to claim 3, characterized in that said insulating plate (6) is provided with a plurality of second fixing holes (61) arranged in a one-to-one correspondence with said first fixing holes (31), all said second fixing holes (61) being adapted to receive said tie (12).

6. The cable tray as claimed in claim 3, wherein the insulating plate (6) is provided with a plurality of second wire passing holes (62) arranged in one-to-one correspondence to the first wire passing holes (32), and the second wire passing holes (62) are sequentially arranged at intervals along the length direction of the step edge (1).

7. The cable tray according to claim 6, wherein at least two second wire passing holes (62) are arranged between each two adjacent rungs (2).

8. A cable tray according to claim 3, characterized in that a plurality of transverse mounting holes (63) are provided in the insulating plate (6), and in that longitudinal mounting holes (21) are provided in the crosspiece (2) in a one-to-one correspondence with the transverse mounting holes (63), and in that the same bolt (7) is inserted in each transverse mounting hole (63) and in the corresponding longitudinal mounting hole (21).

9. A cable tray according to claim 3, characterized in that said insulating plate (6) is an epoxy plate.