Data cable for data transmission by locomotive

Abstract

The present invention relates to the technical field of cables, and in particular, to a data cable for data transmission by a locomotive. The data cable comprises a data transmission line core, an outer side of the data transmission line core being provided with an inner protective layer, an outer side of the inner protective layer being provided with a buffer layer, an outer side of the buffer layer being provided with an outer protective layer, and an outer side of the outer protective layer being provided with a protective sleeve. By means of the above-provided data cable for data transmission by a locomotive, during operation, the amplitude of swinging of the data cable itself can be reduced, a buffering effect is achieved, and thus cracking of the data cable is avoided, improving the usage stability of the data cable and prolonging the service life of the data cable.

Description

A data cable for transmitting data on a locomotive Technical Field

[0001] The present invention relates to the technical field of cables, and in particular to a data cable for transmitting data on a locomotive. Background Art

[0002] In the existing technology, the use of cables is indispensable for locomotives and rolling stock. With the increase in population, the number of locomotive and rolling stock lines and frequencies is also increasing. Therefore, the requirements for the power system on railway locomotives and rolling stock are becoming higher and higher. Cables are an indispensable element in the power system. There are countless cables required on railway locomotives and rolling stock.

[0003] In the prior art, on a locomotive, the end of the cable is fixed to the vehicle computer through a connector. During operation, due to the movement of the vehicle computer, the position of the cable near the connector will continue to shake or vibrate, causing the connector at the opposite end of the cable to swing to a certain extent. During the long-term swing process, cracks and aging will appear at the swinging position of the cable end, and the performance and service life of the cable will be relatively reduced.

[0004] Summary of the Invention

[0005] (1) Technical problems solved

[0006] In view of the deficiencies of the prior art, the present invention provides a data cable for transmitting data on a locomotive, which can reduce the swing amplitude of the data cable itself, play a buffering effect, thereby avoiding cracking of the data cable and improving the stability and service life of the data cable.

[0007] (2) Technical solution

[0008] To achieve the above-mentioned purpose, an embodiment of the present application provides a data cable for transmitting data on a locomotive, comprising a data transmission core, an inner protective layer being arranged on the outside of the data transmission core, a buffer layer being arranged on the outside of the inner protective layer, an outer protective layer being arranged on the outside of the buffer layer, and a protective cover being arranged on the outside of the outer protective layer.

[0009] Preferably, the data transmission line core includes a first conductor core in a central position, and the outside of the first conductor core is wrapped with a first insulating layer; a plurality of second conductor cores are arranged at intervals on the circumferential side of the first conductor core, and a second insulating layer is provided on the outside of each second conductor core; the first insulating layer and the second insulating layer are wrapped with a shielding sleeve on the outside; the shielding sleeve includes an inner shielding layer wrapped around the outside of the second insulating layer, and a shielding partition is provided between adjacent second insulating layers, and an outer shielding layer is provided on the periphery of all second insulating layers, and one end of the shielding partition is connected to the inner shielding layer, and the other end is connected to the outer shielding layer.

[0010] Preferably, the buffer layer includes an elastic barrier layer located between the inner protective layer and the outer protective layer, a plurality of inner support bars are provided at equal angles on a side of the elastic barrier layer close to the inner protective layer, and a plurality of outer support bars are provided at equal angles on a side of the elastic barrier layer close to the outer protective layer; the length directions of the inner support bars and the outer support bars are parallel to the length direction of the data transmission core; the inner support bars and the outer support bars are staggered and distributed on both sides of the elastic barrier layer.

[0011] Preferably, an outer buffer cavity is formed between the plurality of outer support bars, and an inner buffer cavity is formed between the plurality of inner support bars.

[0012] Preferably, limiting grooves are provided at intervals on the outside of the protective cover, and a plurality of limiting grooves are provided at intervals along the length direction; a buffer assembly is detachably connected to the outside of the limiting groove, and the buffer assembly is connected to the locomotive.

[0013] Preferably, the buffer assembly includes a support plate, a connecting hole is opened in the middle of the support plate, and the diameter of the connecting hole is larger than the outer diameter of the protective cover; buffer covers are formed on both sides of the support plate, the buffer covers are made of elastic material, and the end of the buffer cover away from the support plate is connected to the protective cover.

[0014] Preferably, the buffer cover is shaped like a truncated cone, and a connecting hole and a mounting port are respectively formed at both ends of the buffer cover in the axial direction; the connecting hole has a smaller diameter, and the mounting port has a larger diameter; a fixing sleeve is provided in the connecting hole, and the fixing sleeve is located on the inner side of the buffer cover, and one end of the fixing sleeve is fixedly connected to the connecting hole, and the fixing sleeve is sleeved in the limiting groove.

[0015] Preferably, a plurality of elastic bands are arranged at intervals on the outer side of the fixing sleeve and at one end away from the connecting hole, and the other end of the elastic bands is connected to the inner wall of the buffer cover.

[0016] Preferably, a mounting ring is integrally formed on one end of the buffer cover close to the support plate, a locking bolt is provided on the mounting ring, and the locking bolt is threadedly connected to the support plate.

[0017] (3) Beneficial effects

[0018] The present invention provides a data cable for transmitting data on a locomotive. By arranging a first protective layer and a second protective layer on the outside of a data transmission core and a buffer layer located therebetween, as well as a buffer assembly installed at the end, during operation, when the cable swings due to movement of the locomotive, the amplitude of the swing of the data cable itself is greatly reduced, thereby achieving a buffering effect, thereby avoiding cracking of the data cable and improving the stability and service life of the data cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] FIG1 is a cross-sectional view of a data cable for transmitting data on a locomotive according to the present invention;

[0020] FIG2 is a cross-sectional view of a protruding data transmission core in a data cable for transmitting data on a locomotive according to the present invention;

[0021] FIG3 is a schematic diagram of a protruding buffer assembly in a data cable for transmitting data on a locomotive according to the present invention;

[0022] FIG4 is a schematic diagram of a protruding fixing sleeve in a data cable for transmitting data on a locomotive according to the present invention.

[0023] Markings in the accompanying drawings: 100, data transmission core; 110, first conductor core; 120, first insulation layer; 130, second conductor core; 140, second insulation layer; 150, shielding sleeve; 151, inner shielding layer; 152, shielding partition; 153, outer shielding layer; 200, inner protective layer; 300, buffer layer; 310, elastic partition; 320, inner support bar; 330, outer support bar; 340, outer buffer cavity; 350, inner buffer cavity; 400, outer protective layer; 500, protective sleeve; 510, limiting groove; 600, buffer assembly; 610, support plate; 611, connecting hole; 620, buffer cover; 621, connecting hole; 622, installation port; 630, fixing sleeve; 640, elastic band; 650, installation ring. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example

[0026] The present invention provides a data cable for transmitting data on a locomotive. Referring to Figures 1-4 , the cable comprises a data transmission core 100, an inner protective layer 200 disposed on the outer side of the data transmission core 100, a buffer layer 300 disposed on the outer side of the inner protective layer 200, an outer protective layer 400 disposed on the outer side of the buffer layer 300, and a protective sheath 500 disposed on the outer side of the outer protective layer 400. When the data cable is in use, the buffer layer 300 mitigates any impact on the data transmission core 100 during swinging near the end connection.

[0027] Specifically, the data transmission core 100 includes a first conductor core 110 at the center, which is wrapped with a first insulation layer 120. A plurality of second conductor cores 130 are arranged at intervals around the circumference of the first conductor core 110, and a second insulation layer 140 is arranged on the outside of each second conductor core 130.

[0028] The first and second insulating layers 120 and 140 are wrapped with a shielding sleeve 150. The shielding sleeve 150 includes an inner shielding layer 151 wrapped around the outer sides of the second insulating layers 140, shielding partitions 152 positioned between adjacent second insulating layers 140, and an outer shielding layer 153 positioned around the periphery of all second insulating layers 140. The shielding partitions 152 are connected to the inner shielding layer 151 at one end and to the outer shielding layer 153 at the other end. The shielding sleeve 150 shields each first and second conductor cores 110 and 130 to prevent mutual interference.

[0029] The buffer layer 300 includes an elastic barrier layer 310 positioned between the inner protective layer 200 and the outer protective layer 400. A plurality of inner support bars 320 are arranged at equal angles on a side of the elastic barrier layer 310 adjacent to the inner protective layer 200. A plurality of outer support bars 330 are arranged at equal angles on a side of the elastic barrier layer 310 adjacent to the outer protective layer 400. The lengths of the inner and outer support bars 320 and 330 are parallel to the length of the data transmission core 100.

[0030] The inner support bars 320 and outer support bars 330 are staggered and arranged on both sides of the elastic barrier 310. An outer buffer cavity 340 is formed between the multiple outer support bars 330, and an inner buffer cavity 350 is formed between the multiple inner support bars 320. The staggered arrangement of the inner and outer support bars 320, 330, and the resulting inner and outer buffer cavities 350 and 340, ensures that when the data cable swings, the inner support bars 320 are pressed toward the outer buffer cavities 340, while the outer support bars 330 are pressed toward the inner buffer cavities 350, thereby achieving a buffering effect.

[0031] Limiting grooves 510 are provided at intervals on the outside of the protective cover 500 , and a plurality of limiting grooves 510 are provided at intervals along the length direction; a buffer assembly 600 is detachably connected to the outside of the limiting groove 510 , and the buffer assembly 600 is connected to the locomotive.

[0032] The buffer assembly 600 includes a support plate 610 . A communication hole 611 is defined in the middle of the support plate 610 . The diameter of the communication hole 611 is larger than the outer diameter of the protective cover 500 .

[0033] Buffer covers 620 are formed on both sides of the support plate 610 . The buffer covers 620 are made of elastic material, and one end of the buffer cover 620 away from the support plate 610 is connected to the protective cover 500 .

[0034] The buffer cover 620 is truncated cone-shaped, with a connecting hole 621 and a mounting opening 622 formed at both ends of the buffer cover 620 in the axial direction. The connecting hole 621 has a smaller diameter, and the mounting opening 622 has a larger diameter.

[0035] A fixing sleeve 630 is provided in the connection hole 621. The fixing sleeve 630 is located inside the buffer cover 620. One end of the fixing sleeve 630 is fixedly connected to the connection hole 621. The fixing sleeve 630 is sleeved in the limiting groove 510. The fixing sleeve 630 is made of elastic material.

[0036] A plurality of elastic bands 640 are spaced apart on the outer side of the fixing sleeve 630 and at one end away from the connecting hole 621 , and the other end of the elastic bands 640 is connected to the inner wall of the buffer cover 620 .

[0037] A mounting ring 650 is integrally formed at one end of the buffer cover 620 close to the support plate 610 . A locking bolt is provided on the mounting ring 650 , and the locking bolt is threadedly connected to the support plate 610 .

[0038] Through the above-mentioned arrangement, during operation, when the end of the data cable close to the installation position swings due to external factors such as speed and vibration force, the buffer cover 620 will swing first. During the swinging process, due to the elastic setting of the buffer cover 620 and the setting of the elastic band 640, the swing amplitude of the data cable itself will be greatly reduced, which will have a buffering effect, thereby avoiding cracking of the data cable and improving the stability and service life of the data cable.

[0039] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "front," and "back" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0040] In the description of the present invention, it should be noted that, unless otherwise clearly specified or limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, or internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. In the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0041] The above-described embodiments merely illustrate the implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A data cable for transmitting data in a locomotive, characterized in that: The invention comprises a data transmission core (100), an inner protective layer (200) is arranged on the outer side of the data transmission core (100), a buffer layer (300) is arranged on the outer side of the inner protective layer (200), an outer protective layer (400) is arranged on the outer side of the buffer layer (300), and a protective cover (500) is arranged on the outer side of the outer protective layer (400).

2. A data cable for transmitting data in a locomotive according to claim 1, characterized in that: The data transmission line core (100) comprises a first conductor core (110) at a central position, and the first conductor core (110) is wrapped with a first insulating layer (120) on the outside; A plurality of second conductor cores (130) are arranged at intervals on the circumferential side of the first conductor core (110), and a second insulating layer (140) is arranged on the outer side of each second conductor core (130); The first insulating layer (120) and the second insulating layer (140) are wrapped with a shielding sleeve (150) on the outside; The shielding sleeve (150) comprises an inner shielding layer (151) wrapped around the outer side of the second insulating layer (140), a shielding partition (152) arranged between adjacent second insulating layers (140), an outer shielding layer (153) arranged around the periphery of all second insulating layers (140), and one end of the shielding partition (152) is connected to the inner shielding layer (151), and the other end is connected to the outer shielding layer (153).

3. The data cable for transmitting data in a locomotive according to claim 1, characterized in that: The buffer layer (300) comprises an elastic barrier layer (310) located between the inner protective layer (200) and the outer protective layer (400), a side surface of the elastic barrier layer (310) close to the inner protective layer (200) is provided with a plurality of inner support strips (320) at equal angle intervals, and a side surface of the elastic barrier layer (310) close to the outer protective layer (400) is provided with a plurality of outer support strips (330) at equal angle intervals; The length directions of the inner support bar (320) and the outer support bar (330) are parallel to the length direction of the data transmission line core (100); The inner support bars (320) and the outer support bars (330) are distributed alternately and at intervals on both sides of the elastic barrier layer (310).

4. A data cable for transmitting data in a locomotive according to claim 3, characterized in that: An outer buffer cavity (340) is formed between the plurality of outer support bars (330), and an inner buffer cavity (350) is formed between the plurality of inner support bars (320).

5. The data cable for transmitting data in a locomotive according to claim 1, characterized in that: Limiting grooves (510) are arranged at intervals on the outside of the protective sleeve (500), and a plurality of the limiting grooves (510) are arranged at intervals along the length direction; A buffer assembly (600) is detachably connected to the outside of the limiting groove (510), and the buffer assembly (600) is connected to the locomotive.

6. A data cable for transmitting data in a locomotive according to claim 5, characterized in that: The buffer assembly (600) comprises a support plate (610), a communication hole (611) is opened in the middle of the support plate (610), and the diameter of the communication hole (611) is larger than the outer diameter of the protective sleeve (500); Buffer covers (620) are respectively formed on both sides of the support plate (610), the buffer covers (620) are made of elastic material, and one end of the buffer cover (620) away from the support plate (610) is connected to the protective cover (500).

7. A data cable for transmitting data in a locomotive according to claim 6, characterized in that: The buffer cover (620) is in the shape of a truncated cone, and a connecting hole (621) and a mounting opening (622) are respectively formed at two ends of the buffer cover (620) in the axial direction; the connecting hole (621) has a smaller diameter, and the mounting opening (622) has a larger diameter; A fixing sleeve (630) is disposed in the connection hole (621), the fixing sleeve (630) is located inside the buffer cover (620), and one end of the fixing sleeve (630) is fixedly connected to the connection hole (621). The fixing sleeve (630) is sleeved in the limiting groove (510).

8. The data cable for transmitting data in a locomotive according to claim 7, characterized in that: A plurality of elastic bands (640) are arranged at intervals on the outside of the fixing sleeve (630) and at one end away from the connecting hole (621), and the other end of the elastic band (640) is connected to the inner wall of the buffer cover (620).

9. The data cable for transmitting data in a locomotive according to claim 6, characterized in that: A mounting ring (650) is integrally formed at one end of the buffer cover (620) close to the support plate (610), and a locking bolt is provided on the mounting ring (650), and the locking bolt is threadedly connected to the support plate (610).

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