CN210142884U - Cable assembly and rail vehicle - Google Patents

Abstract

The utility model provides a cable subassembly and rail vehicle. The utility model discloses a cable subassembly includes that cable fixing device and two piece at least cables carry out the relatively fixed, and cable fixing device includes first bandage and an at least second bandage, and the circumference outside at all cables is binded to first bandage, and the second bandage is binded in the outside at the position that is located between two cables of first bandage to form the isolation structure who is used for keeping apart two adjacent cables. The utility model discloses a cable subassembly is used flexibility height, application scope wide.

Description

Cable assembly and rail vehicle

Technical Field

The utility model relates to a transportation equipment field especially relates to a cable subassembly and rail vehicle.

Background

After the wires of the locomotive and the vehicle are wired, the adjacent wires are contacted and rubbed due to vibration generated in the running process of the locomotive and the vehicle, so that the insulating layers of the wires are abraded, and faults such as grounding, short circuit and the like occur.

In the prior art, a wire clamping plate is adopted to isolate and protect a circuit. Fig. 1 is a schematic structural diagram of a wire clamping plate in the prior art. As shown in fig. 1, the wire clamping plate includes an upper clamping plate 101, a lower clamping plate 102, a fastening bolt 103, and a nut 104. Generally, a lead is fixed in a groove of a lower clamp plate 102, a surface of the upper clamp plate 101 with the groove is covered on a surface of the lower clamp plate 102 for fixing the lead, and finally the upper clamp plate 101 and the lower clamp plate 102 are pressed by a fastening bolt 103 and a nut 104. The wire clamping plate is made of epoxy cloth plates or nylon materials.

The number of the wires which can be fixed by the wire clamping plate and the wire diameter of the wires are determined, and when the number of the wires or the wire diameter of the wires are changed, the wire clamping plate needs to be replaced, so that the wire clamping plate is low in application flexibility and narrow in application range.

SUMMERY OF THE UTILITY MODEL

The utility model provides a cable subassembly and rail vehicle to solve and use the problem that the flexibility is low, application scope is narrow.

In a first aspect, the present invention provides a cable assembly, including cable fixing device and at least two cables for relative fixation, the cable fixing device includes a first bandage and at least one second bandage, the first bandage is bound in the circumference outside of all cables, the second bandage is bound in the outside of the first bandage in the position between two cables, and an isolation structure for isolating two adjacent cables is formed.

Optionally, the first strap is looped around the circumferential outer side of all the cables; and/or the second strap is looped around the outside of the first strap.

Optionally, the second strap is strapped around the outside of the opposing lengths of the first strap.

Alternatively, the first strap is arranged in a radial direction of the cable.

Optionally, the extending direction of the second strap and the extending direction of the first strap are perpendicular to each other.

Optionally, the width of the isolation structure is between 2 mm and 10 mm.

Optionally, the first strap and the second strap are straps.

Optionally, the first strap and the second strap are insulators.

Optionally, the number of cables is less than or equal to 10.

In a second aspect, the present invention provides a rail vehicle, including a vehicle body and a cable assembly as described above, the cable assembly being mounted on the vehicle body.

The utility model discloses a cable subassembly and rail vehicle, cable subassembly include that cable fixing device and two piece at least cables carry out relatively fixed, and cable fixing device includes first bandage and an at least second bandage, and the circumference outside at all cables is binded to first bandage, and the second bandage is binded in the outside at the position that is located between two cables of first bandage to form the isolation structure who is used for keeping apart two adjacent cables. The cable assembly has high application flexibility and wide application range.

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 inventive labor.

FIG. 1 is a schematic view of a wire clamp plate according to the prior art;

fig. 2 is a schematic structural diagram of a cable assembly according to an embodiment of the present invention;

fig. 3 is a left side view of the cable assembly of fig. 2.

Description of reference numerals:

101: an upper splint;

102: a lower splint;

103: fastening a bolt;

104: a nut;

20: a cable fixing device;

21: a cable;

22: an isolation structure;

201: a first strap;

202: a second strap.

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 will be clearly and completely described below with reference to the accompanying 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 efforts belong to the protection scope of the present invention.

Example one

Fig. 2 is a schematic structural diagram of a cable assembly according to an embodiment of the present invention; fig. 3 is a left side view of the cable assembly of fig. 2. As shown in fig. 2 and 3, the cable assembly provided by the present embodiment includes a cable fixing device 20 and at least two cables 21 for relative fixing, the cable fixing device 20 includes a first strap 201 and at least one second strap 202, the first strap 201 is bound on the circumferential outer side of all the cables 21, the second strap 202 is bound on the outer side of the first strap 201 at the position between two cables 21, and an isolation structure 22 for isolating two adjacent cables 21 is formed.

The first binding band 201 and the second binding band 202 are flexible strips which can be bent and have certain toughness; based on the structure and composition of the cable fixture 20, the first strap 201 may be all types of straps that can implement the binding of the cable 21; the second strap 202 may be all straps that enable binding outside the first strap 201 at the location between the two cables 21 and form an isolation structure 22 isolating the two adjacent cables, and the edges of these straps must not be too sharp to scratch the cables.

Since the first strap 201 needs to be bound to the circumferential outer sides of all the cables 21, a strap having a length enough to surround the circumferential outer sides of all the cables for at least one turn may be selected, and the first strap 201 may surround two or more turns as needed.

In order to isolate two adjacent cables 21 and prevent the two adjacent cables 21 from rubbing against each other to cause abrasion, it is necessary to bind a second strap 202 outside the first strap 201 at a position between the two cables 21 to form an isolation structure 22 for isolating the two adjacent cables, and the second strap 202 can flexibly select a suitable binding mode or structure according to actual needs, for example:

one possible binding method is: the second strap 202 may be looped around one, two or more circles when binding the portion of the first strap 201 between the two cables 21. When the loop is looped for more than one turn, it may be looped side by side in the extending direction of first strap 201 to increase the width of isolation structure 22; an outer layer that may be superimposed around the previous perimeter to increase the thickness of the insulation structure 22; or the two surrounding ways can be combined, and the width and the thickness of the isolation structure 22 are increased;

another possible binding method is: one, two or more second straps 202 are tied to the first strap 201 at a position between the two cables 21 according to actual needs. When a plurality of second straps 202 are bound, they may be bound side by side along the extending direction of the first strap 201 to increase the width of the partition structure 22; may be a tie-down overlying the outer layer of the previous second strap 202 to increase the thickness of the isolation structure 22; or two binding modes can be combined, and the width and the thickness of the isolation structure 22 are increased simultaneously;

under the circumstance of no conflict, the above two binding modes of the second strap 202 can also be used in combination to form a third possible binding mode, which is not described herein again.

The binding manner of the second strap 202 includes, but is not limited to, the three possible binding manners, and in practical application, the specific binding manner of the second strap 202 may be selected according to the condition of the cable, the state of the first strap 201, the field requirement, and the like, and is not limited herein.

Generally, for easier handling, the first strap 201 is looped around all the cables 21 at the outer side in the circumferential direction; and/or the presence of a gas in the gas,

second strap 202 is looped around the outside of first strap 201.

For example: the first strap 201 may be looped around the outside of all the cables 21 in the circumferential direction, and the second strap 202 may be looped around the outside of the first strap 201 in the circumferential direction;

it is also possible that the first strap 201 is looped around one circumference outside all the cables 21, and the second strap 202 is looped around more than one circumference outside the first strap 201, such as two, three or more circumferences;

it is also possible that the first strap 201 is looped around more than one turn, such as two, three or more turns, outside the circumference of all the cables 21, and the second strap 202 is looped around the outside of the first strap 201.

Among the three implementation manners, the simplest operation is as follows: the first strap 201 is wound around the outside of all the cables 21 in the circumferential direction, and the second strap 202 is wound around the outside of the first strap 201 in the circumferential direction.

In addition, the second strap 202 is bound on the outer side of the first strap 201 at the position between the two cables 21, and forms an isolation structure 22 for isolating the two adjacent cables, including but not limited to the following three possible implementations:

one possible implementation is: the second strap 202 is bound to one of the opposite lengths of the first strap 201 between the two cables 21.

Another possible implementation is: the second strap 202 is bound on two opposite segments of the first strap 201 between the two cables 21, and specifically, the way of wrapping the second strap 202 around the two opposite segments of the first strap 201 may be adjusted according to actual situations, and may be, for example: second strap 202 is looped around the outside of the opposing lengths of first strap 201, or second strap 202 may be looped around one of the opposing lengths of first strap 201 and then crossed around the other.

Yet another possible implementation is: two second straps 202 are respectively bound to opposite segments of the first strap 201 between the two cables 21.

Optionally, the second strap 202 is bound to the outer sides of the two opposite sections of the first strap 201, the binding mode is simple and convenient to operate, and the formed isolation structure 22 is stable and good in isolation effect.

In practical applications, the specific implementation of second strap 202 binding first strap 201 and forming isolation structure 22 may be determined based on field conditions, and is not limited herein.

In order that the first strap 201 is not displaced or loosened by vibration after binding the cable 21, resulting in a reduced or even failed function of the cable fixing device 20 to isolate the protection cable, when binding the first strap 201, it is generally selected to arrange the first strap 201 in a radial direction of the cable 21.

Specifically, the first strap 201 is bound to all the cables 21 in a direction orthogonal to the cables 21, then the second strap 202 is bound to two opposite sections of the first strap 201 between two adjacent cables 21 one by one between the two adjacent cables 21 to form an isolation structure for isolating the two adjacent cables 21, and finally the first strap 201 is further tensioned, so that the first strap 201 has no room for loosening, the cable fixing device 20 is facilitated to isolate the adjacent cables 21, and contact friction between the adjacent cables 21 is prevented, and abrasion is caused.

Of course, in practical applications, there may be some situations where it is not suitable to arrange the first strap 201 along the radial direction of the cable 21, and in these situations, the arrangement direction of the first strap 201 may be determined according to the layout of the cable 21 and the needs of the field.

Further, in order that the second strap 202 is bound to the portion of the first strap 201 between the two cables 21, the isolation structure 22 for isolating the two adjacent cables is formed so as not to be inclined and displaced due to vibration, which may reduce or even fail the effect of the cable fixing device 20 in isolating the protection cables, and therefore, when the second strap 202 is bound, the extending direction of the second strap 202 and the extending direction of the first strap 201 are generally perpendicular to each other.

One specific implementation is as follows: first, the first strap 201 is bound to all the cables 21 in the direction orthogonal to the cables 21; then, binding two opposite sections of the first bandage 201 between two adjacent cables 21 one by one with the second bandage 202 in a direction orthogonal to the first bandage 201 to form an isolation structure 22 for isolating the two adjacent cables; finally, the first bandage 201 and the second bandage 202 are further tensioned, so that the cable fixing device 20 consisting of the first bandage 201 and the second bandage 202 has no room for displacement and looseness; meanwhile, the isolation structure 22 formed by the second strap 202 is more stable and reliable, and cannot be easily inclined and displaced even in a vibrating environment, so that the cable fixing device 20 is facilitated to isolate the adjacent cables 21, and contact friction and abrasion between the adjacent cables 21 are prevented.

Of course, in practical applications, there may be some cases where it is not appropriate to set the extending direction of the second strap 202 and the extending direction of the first strap 201 perpendicular to each other, and in these cases, the setting of the extending direction of the second strap 202 may be adjusted according to the layout of the cables 21, the setting state of the first strap 201, the needs of the field, and the like.

In order to ensure the effect of the second strap 202 in isolating the two adjacent cables 21 to prevent the adjacent cables 21 from being worn by binding the portion of the first strap 201 between the two cables 21, the isolating structure 22 is provided with a width that does not serve to isolate and protect the cables if the isolating structure 22 is too narrow; if the isolation structure 22 is too wide, it takes up space resources and wastes material.

In practical applications, the width of the isolation structure 22 may be determined according to the sectional area of the cable 21 to be isolated, the number of cables 21, the distance between the cable fixtures 20, and the application environment, for example:

the cables with larger cross sections need to select isolation structures with larger widths; the more the number of cables needing isolation protection is, the larger the width of the isolation structure is selected; when a plurality of cable fixing devices fix the same group of cables, the larger the distance between the adjacent cable fixing devices is, the larger the width of the isolation structure should be; and, the more severe the environmental vibration to which the cable fixing device is applied, the larger the width of the isolation structure is selected; in addition, there are other factors that need to be considered in determining the width of the isolation structure 22, which are not listed here.

Typically, the width of the insulation structure 22 formed by the bundling of the second straps 202 is between 2 mm and 10 mm.

The specific value of the width of the isolation structure 22 can be determined according to the actual application scenario, and is not limited herein.

Specific implementations of controlling the width of the isolation structure 22 to be between 2 mm and 10 mm include, but are not limited to, the following three possible implementations:

the first possible implementation manner is: the second strap 202 with the width of 2 mm to 10 mm is selected, and the second strap 202 is bound to the first strap 201 at the position between the two cables 21, so that the isolation structure 22 meeting the width requirement is formed.

A second possible implementation is: the second strap 202 may be configured to surround a plurality of circles in parallel along the extending direction of the first strap 201 to form the isolation structure 22 meeting the width requirement when binding the portion of the first strap 201 between the two cables 21, and the specific number of circles is determined according to the width of the second strap 202 and the required width of the isolation structure 22.

A third possible implementation is: a plurality of second straps 202 may be bound in parallel along the extending direction of the first strap 201 on the portion of the first strap 201 between the two cables 21 to form the isolation structure 22 meeting the width requirement, and the number of the second straps 202 to be bound is determined according to the width of the second straps 202 and the required width of the isolation structure 22.

The width of the isolation structure 22 can be controlled to be between 2 mm and 10 mm in all of the three possible implementation manners, and in practical applications, there may be other possible implementation manners, which implementation manner is specifically adopted to form the isolation structure 22 meeting the width requirement, which may be determined after comprehensive consideration is given according to a specific application scenario of the cable fixing device 20, specifications of the first strap 201 and the second strap 202, a distribution condition of cables to be isolated, and the like, and no specific limitation is made herein.

Alternatively, first strap 201 and second strap 202 may be twist ties.

The binding that ribbon self has characteristics such as ligature is quick, auto-lock fastening and convenient to use can make the cable fixing device in the cable subassembly operate more simple and efficient, save time, and the cable fixing device who forms simultaneously is small, saves space and with low costs.

Further, considering that the first strap 201 and the second strap 202 are applied as the cable fixing device 20 in the cable assembly, generally, the first strap 201 and the second strap 202 are insulators.

Therefore, even if the cable 21 near the cable fixing device 20 is worn, the first binding band 201 and the second binding band 202 are fixed and isolated, and the first binding band 201 and the second binding band 202 are made of insulating materials, so that the probability of faults of grounding, short circuit and the like of the cable 21 can be reduced.

For example: can choose for use the nylon ribbon as first bandage 201 and second bandage 202 use, the nylon ribbon still has fine insulating nature except having that the ligature is quick, auto-lock fastening and convenient to use's characteristics to can make cable fixing device 20 still have better reliability when easy and fast to handle, the specification of the nylon ribbon of specifically choosing for use can be confirmed according to the practical application scene, the specification of the nylon ribbon of first bandage 201 and second bandage 202 choosing for use can be the same also can be different, do not specifically limit here.

In addition, the number of the cables 21 in the cable assembly may be 2, 3, 4 or more, and the specific number of the cables may be determined according to the actual application scenario and the material selected by the cable fixing device 20; however, in consideration of the structure of the cable assembly, and in order to secure the cable assembly's cable-isolating effect, generally, the number of cables 21 in the cable assembly is less than or equal to 10.

During the installation of the cable assembly, if the number of cables 21 changes, it is only necessary to adjust the number of cables 21 bound by the first strap 201 and increase or decrease the number of cables 202 used.

The sectional areas of the cables 21 in the same cable assembly can be the same or different, and in the process of installing the cable assembly, if the sectional area of the cable changes, only the degree of tightness of the binding of the first binding band 201 and the second binding band 202 needs to be adjusted.

In this embodiment, the cable assembly includes a cable fixing device and at least two cables for relative fixation, the cable fixing device includes a first strap and at least one second strap, the first strap is bound to the outer side of the circumference of all the cables, and the second strap is bound to the outer side of the first strap at the position between the two cables, and forms an isolation structure for isolating the two adjacent cables. The cable assembly is characterized in that after all cables are bound by the first binding band, the first binding band is bound between the adjacent cables by the second binding band to form an isolation structure, so that the adjacent cables are isolated, the contact friction between the adjacent cables is prevented, the abrasion is prevented, and further faults such as grounding, short circuit and the like are caused; in addition, when the number of cables in the cable assembly and the sectional area of the cables are changed, only the first binding band and the second binding band need to be adjusted in an adaptive mode, and the installation, use and isolation and protection effects of the cable fixing device in the cable assembly cannot be influenced, so that the cable assembly is high in application flexibility and wide in application range.

Example two

Fig. 2 is a schematic structural diagram of a cable assembly according to an embodiment of the present invention; fig. 3 is a left side view of the cable assembly of fig. 2. The technical solution in the present embodiment will be described below with reference to fig. 2 and 3.

The cable assembly provided by the present embodiment is a specific implementation manner of the cable assembly described above on the basis of the above embodiment, and the cable assembly provided by the present embodiment includes a cable fixing device 20 and at least two cables 21 for relative fixing, the cable fixing device 20 includes a first strap 201 and at least one second strap 202, the first strap 201 is bound to the outer side of all the cables 21 in the circumferential direction, and the second strap 202 is bound to the outer side of the first strap 201 at the position between the two cables, and forms an isolation structure 22 for isolating the two adjacent cables.

Specifically, 1 long nylon tie with a width of 7 mm is selected as the first tie 201 in the embodiment; the second bandage 202 is 3 shorter nylon bandages with the width of 7 mm; 4 wires with the cross section area of 16 square millimeters are selected for the cable; the long nylon cable tie is bound around the circumferential outer sides of the 4 wires along the radial direction of the wires; the short nylon cable tie is bound around the outside of two relative sections between two wires of long nylon cable tie along the direction of the long nylon cable tie extending direction of perpendicular to a week, forms the isolation structure that the width is 7 millimeters and keeps apart two adjacent wires.

This embodiment binds 4 wires in a direction orthogonal to the wires for one turn with a long nylon cable tie, and then binds a portion of the long nylon cable tie between two wires for one turn with a short nylon cable tie orthogonal to the long nylon cable tie, and forms an isolation structure with a width of 7 mm. The nylon cable tie has the characteristics of quick binding, good insulation, self-locking fastening, convenience in use and the like, so that the cable fixing device consisting of the nylon cable tie is simple, convenient and quick to operate, good in flexibility and wide in application range; in addition, the nylon cable tie also has the characteristics of light weight and low cost.

EXAMPLE III

The utility model also provides a rail vehicle, including the cable subassembly of automobile body and above-mentioned embodiment one, the cable unit mount is on the automobile body.

For example, in general, a plurality of cables are distributed at the bottom or the top of a rail vehicle, and the rail vehicle vibrates during running, so that contact friction between adjacent cables is caused, the cable insulation layer is abraded, and faults such as grounding, short circuit and the like occur; a plurality of cable assemblies can be arranged on the same group of cables, so that the effect of isolating and protecting the cables is better.

In this embodiment, the rail vehicle includes a vehicle body and a cable assembly, and the cable assembly is mounted on the vehicle body. The cable assembly comprises a cable fixing device and at least two cables which are fixed relatively, the cable fixing device comprises a first bandage and at least one second bandage, the first bandage is bound on the outer side of the periphery of all the cables, the second bandage is bound on the outer side of the part, located between the two cables, of the first bandage, and an isolation structure used for isolating the two adjacent cables is formed. The cable assembly mounted on the railway vehicle is characterized in that after all cables are bound by the first binding band, the first binding band is bound between the adjacent cables by the second binding band to form an isolation structure, so that the adjacent cables are isolated, and the faults of grounding, short circuit and the like caused by contact friction between the adjacent cables are prevented; in addition, when the number of cables in the cable assembly on the railway vehicle and the sectional area of the cables are changed, only the first binding band and the second binding band need to be adjusted in an adaptive mode, and the installation, use and isolation and protection effects of the cable fixing device in the cable assembly cannot be influenced.

In the description of the present invention, it is to be understood that the terms "comprises" and "comprising," and any variations thereof, as used herein, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integral to one another; either directly or indirectly through intervening media, such as through internal communication or through an interaction between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; 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 or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (10)

1. A cable assembly is characterized by comprising a cable fixing device and at least two cables, wherein the cable fixing device comprises a first binding belt and at least one second binding belt, the first binding belt is bound on the outer side of the circumferential direction of all the cables, the second binding belt is bound on the outer side of the part, located between the two cables, of the first binding belt, and an isolation structure used for isolating the two adjacent cables is formed.

2. The cable assembly of claim 1, wherein the first strap is looped around a circumference outside of all of the cables; and/or the presence of a gas in the gas,

the second strap is looped around the outside of the first strap.

3. The cable assembly of claim 2, wherein the second strap is strapped to an outer side of the opposing lengths of the first strap.

4. The cable assembly of any one of claims 1-3, wherein the first strap is disposed radially of the cable.

5. The cable assembly of claim 4, wherein the direction of extension of the second strap and the direction of extension of the first strap are perpendicular to each other.

6. The cable assembly of any one of claims 1-3, wherein the width of the spacer structure is between 2 millimeters and 10 millimeters.

7. The cable assembly of any one of claims 1-3, wherein the first strap and the second strap are twist ties.

8. The cable assembly of any one of claims 1-3, wherein the first strap and the second strap are insulators.

9. The cable assembly of any one of claims 1-3, wherein the number of cables is less than or equal to 10.

10. A rail vehicle comprising a vehicle body and the cable assembly of any one of claims 1-9 mounted to the vehicle body.

Images