CN215600128U

CN215600128U - Anti-extrusion super-five shielded cable

Info

Publication number: CN215600128U
Application number: CN202121920264.0U
Authority: CN
Inventors: 童汝佳; 杨承卫; 黄勇
Original assignee: Nanjing Tianyi Huitong Intelligent Technology Co ltd
Current assignee: Nanjing Tianyi Huitong Intelligent Technology Co ltd
Priority date: 2021-08-17
Filing date: 2021-08-17
Publication date: 2022-01-21
Anticipated expiration: 2031-08-17

Abstract

The utility model discloses an anti-extrusion ultra-five shielded cable, which relates to the technical field of cables and comprises an outer shell, wherein a buffer sleeve is arranged in an inner cavity of a shielding sleeve layer, an outer sleeve is attached to the inner wall of the shielding sleeve layer, elastic support bars are uniformly arranged on the inner wall of the outer sleeve at intervals, the tail ends of the elastic support bars are fixedly connected to the outer wall of the inner sleeve, an inner shell sleeve is sleeved in the inner sleeve, buffer cushion blocks are respectively arranged on the outer wall of the inner sleeve between adjacent elastic support bars, a first elastic pull rope and a second elastic pull rope are respectively arranged between the side walls of the elastic support bars outside the buffer cushion blocks, the adjacent elastic support bars are arranged in a splayed shape, when the cable is extruded, the outer sleeve is extruded to push the adjacent elastic support bars to deform and expand towards two sides, when the cable is deformed and expanded, the first elastic pull rope and the second elastic pull rope are pulled and extended by the elastic support bars and the elastic pull ropes, the extrusion impact on the outer sleeve is resisted, and the anti-extrusion anti-breaking protection is carried out on the cable.

Description

Anti-extrusion super-five shielded cable

Technical Field

The utility model relates to the technical field of cables, in particular to an anti-extrusion super-five shielded cable.

Background

The shielding cable is formed in a mode of adding a shielding layer outside a transmission cable and has the capability of resisting external electromagnetic interference. The shielding layer of the cable is mostly woven into a netted metal wire or a metal film, and the cable has a plurality of different modes of single shielding and multi-shielding. Single shield refers to a single shielding mesh or film in which one or more wires may be wrapped. The multi-shielding mode is that a plurality of shielding nets and shielding films are arranged in a cable in a shared mode. Some are used to isolate electromagnetic interference between wires, and some are double-layer shields used to enhance shielding effect. The shielding layer is grounded to isolate the induced interference voltage of the external connection to the conducting wire.

However, most of the existing shielded cable cores are only wrapped with one or more layers of sheaths for insulation protection, and the sheaths with simple arrangement have limited protection performance, so that the cables are easily extruded by gravity when buried at a low place, particularly, the soil layer at the upper part of the cables is not completely firm at the initial stage of laying the cables, some fully-loaded large vehicles run over the upper part of the cables, the cables in the soil layer are particularly subjected to large extrusion force, and once the extrusion force exceeds the bearing limit of the cables, the cables are easily broken and cannot be used.

Therefore, we have proposed a category-five shielded cable that is resistant to extrusion.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an anti-extrusion super-five shielded cable which has good anti-extrusion performance, can effectively prevent the cable from being broken due to gravity extrusion when the cable is buried underground, and fully ensures the safe use of the cable, thereby solving the problems provided by the background.

In order to achieve the purpose, the utility model provides the following technical scheme: an anti-extrusion super-five shielded cable comprises an outer shell, wherein the outer shell is used for protecting cable components arranged in the outer shell, a shielding sleeve layer is arranged in an inner cavity of the outer shell, a buffering sleeve member is arranged in the inner cavity of the shielding sleeve layer, an inner shell sleeve is sleeved in the inner cavity of the buffering sleeve member, and a cable inner core is sleeved in the inner cavity of the inner shell sleeve;

the outer sleeve that buffering external member and shielding jacket layer inner wall laminated mutually, even interval are provided with the elastic support strip on the inner wall of outer sleeve, and elastic support strip's terminal fixed connection is on the outer wall of inner sleeve, and the inner housing cover is cup jointed to the inside of inner sleeve, and is provided with the cushion block on the inner sleeve outer wall between adjacent elastic support strip respectively, is provided with first elasticity stay cord and second elasticity stay cord between the elastic support strip lateral wall in the cushion block outside respectively.

Further, the shell body includes the basic unit that laminates mutually with the shielding jacket layer, is provided with the flame retardant coating on the outer wall of basic unit, and the parcel is provided with fire prevention gasbag on the outer wall of flame retardant coating, and the parcel is provided with the metallic membrane on fire prevention gasbag's the outer wall, and the parcel is provided with the outer shell cover on the outer wall of metallic membrane.

Furthermore, the fireproof air bag is of a cylindrical structure, and at least one gas of nitrogen and carbon dioxide is filled in the fireproof air bag.

Furthermore, the outer casing is a member made of epoxy resin material, and is bonded, pressed and fixedly connected to the outer wall of the metal film.

Furthermore, adjacent the elastic support strip is arranged in a splayed manner, when the elastic support strip is far away from the inner sleeve and is not extruded to deform and expand towards two sides, the first elastic pull rope and the second elastic pull rope between the side walls of the elastic support strip are kept in a normal straightening state.

Further, the cable inner core is provided with the bracing piece including cup jointing in the hexagonal separation sleeve of inner shell cover inner chamber on the diagonal angle department inner wall of hexagonal separation sleeve respectively, the terminal fixedly connected with arc of bracing piece, the outer wall setting of the cambered surface laminating cable conductor of the bracing piece one end of keeping away from of arc, and the arc is overlapped in the cable conductor outside at an interval.

Further, adjacent arc clearance outer wall department be provided with the stiffener, the stiffener is connected with hexagonal isolation cover inner wall, and the stiffener sets up in hexagonal isolation cover edge middle part department.

Compared with the prior art, the utility model has the following beneficial effects:

1. the utility model provides an anti-extrusion ultra-five shielded cable, wherein a buffer sleeve is arranged in an inner cavity of a shielding sleeve layer, an outer sleeve is attached to the inner wall of the shielding sleeve layer, elastic support bars are uniformly arranged on the inner wall of the outer sleeve at intervals, the tail ends of the elastic support bars are fixedly connected to the outer wall of the inner sleeve, an inner shell sleeve is sleeved inside the inner sleeve, buffer cushion blocks are respectively arranged on the outer wall of the inner sleeve between the adjacent elastic support bars, a first elastic pull rope and a second elastic pull rope are respectively arranged between the side walls of the elastic support bars outside the buffer cushion blocks, the adjacent elastic support bars are arranged in a splayed shape, when the cable is extruded, the outer sleeve is extruded to push the adjacent elastic support bars to deform and expand towards two sides, the first elastic pull rope and the second elastic pull rope are pulled and extended by the elastic support bars after the elastic support bars are deformed and expanded, and the elastic support bars are stressed and stretched by the elastic pull ropes, the extrusion impact that outer sleeve received is resisted, and final contact cushion block cushions, has effectively improved the anti extrusion deformation ability of cable, fully prevents disconnected protection to the cable.

2. The utility model provides an anti-extrusion super-five shielded cable, a hexagonal isolation sleeve is sleeved in an inner cavity of an inner shell, supporting rods are respectively arranged on the inner walls of the diagonal positions of the hexagonal isolation sleeve, the tail ends of the supporting rods are fixedly connected with arc-shaped plates, the arc surfaces of the ends of the arc-shaped plates far away from the supporting rods are arranged in a manner of being attached to the outer walls of cable cores, the arc-shaped plates are sleeved outside the cable cores at intervals, reinforcing rods are arranged at the outer walls of the gaps of the adjacent arc-shaped plates, the reinforcing rods are connected with the inner walls of the hexagonal isolation sleeve, the reinforcing rods are arranged at the middle parts of the edges of the hexagonal isolation sleeve, when the cable is extruded seriously, the supporting rods and the arc-shaped plates at the diagonal positions of the hexagonal isolation sleeve are matched to support and protect the cable cores, the anti-deformation capacity of the diagonal positions of the hexagonal isolation sleeve is strong, the damage to the cable cores caused by extrusion can be effectively lower than that the cable cores, the anti-extrusion protection performance of the cable cores is further enhanced, and gaps exist between the hexagonal isolation sleeve and the inner wall of the inner shell, the hollow buffer can be used for hollow buffer of extrusion of cable cores, and is convenient and practical.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a cross-sectional view of a cushioning sleeve of the present invention;

FIG. 3 is a cross-sectional view of the cable core of the present invention;

fig. 4 is a partial cross-sectional view of the outer housing of the present invention.

In the figure: 1. an outer housing; 11. a base layer; 12. a fire barrier layer; 13. a fire-proof air bag; 14. a metal film; 15. an outer shell; 2. a shielding jacket layer; 3. a buffer kit; 31. a jacket; 32. an elastic support bar; 33. an inner sleeve; 34. buffering cushion blocks; 35. a first elastic pull rope; 36. a second elastic pull rope; 4. an inner shell sleeve; 5. an inner core of the cable; 51. a hexagonal spacer sleeve; 52. a support bar; 53. an arc-shaped plate; 54. a cable core; 55. a reinforcing rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, an anti-extrusion super-five type shielded cable includes an outer housing 1, the outer housing 1 is used for protecting a cable component arranged inside the outer housing 1, a shielding jacket layer 2 is arranged in an inner cavity of the outer housing 1, the shielding jacket layer 2 adopts a double-layer shielding mode, and is a component formed by a double-layer shielding film screen and used for resisting interference of external electromagnetism to the cable, a buffering sleeve member 3 is arranged in the inner cavity of the shielding jacket layer 2, an inner housing sleeve 4 is sleeved in the inner cavity of the buffering sleeve member 3, and a cable inner core 5 is sleeved in the inner cavity of the inner housing sleeve 4.

Referring to fig. 1 and 2, the outer sleeve 31 is formed by attaching the buffering kit 3 to the inner wall of the shielding sleeve layer 2, elastic support bars 32 are uniformly arranged on the inner wall of the outer sleeve 31 at intervals, the ends of the elastic support bars 32 are fixedly connected to the outer wall of the inner sleeve 33, the inner shell 4 is sleeved inside the inner sleeve 33, buffer pads 34 are respectively arranged on the outer walls of the inner sleeve 33 between adjacent elastic support bars 32, first elastic pull ropes 35 and second elastic pull ropes 36 are respectively arranged between the side walls of the elastic support bars 32 outside the buffer pads 34, the adjacent elastic support bars 32 are arranged in a splayed shape, when the cable is far away from the inner sleeve 33 and is not extruded to be deformed and expanded to both sides, the first elastic pull ropes 35 and the second elastic pull ropes 36 between the side walls are kept in a normal straight state, when the cable is extruded, the outer sleeve 31 pushes the adjacent elastic support bars 32 to be deformed and expanded to both sides, first elastic stay cord 35 and second elastic stay cord 36 receive its pulling extension after elastic support bar 32 warp, utilize elastic support bar 32's deformation expansion and elastic stay cord's atress tensile, the extrusion impact that outer sleeve 31 received resists, and final contact cushion block 34 cushions, has effectively improved the anti extrusion deformability of cable, fully prevents disconnected protection to the cable.

Referring to fig. 1 and 4, the outer shell 1 includes a base layer 11 attached to the shielding sheath layer 2, a fire-proof layer 12 is disposed on an outer wall of the base layer 11, a fire-proof airbag 13 is wrapped on an outer wall of the fire-proof layer 12, the fire-proof airbag 13 is a cylindrical structure, and is filled with at least one gas of nitrogen and carbon dioxide for fire prevention and extinguishing of the cable, so as to prevent the cable from being easily ignited by external sparks, a metal film 14 is wrapped on an outer wall of the fire-proof airbag 13, and an outer shell 15 is wrapped on an outer wall of the metal film 14, the outer shell 15 is a member made of epoxy resin material, and is fixedly connected to the outer wall of the metal film 14 by bonding and pressing, so as to enhance the acid and alkali corrosion resistance of the cable.

Referring to fig. 1 and 3, the cable core 5 includes a hexagonal isolation sleeve 51 sleeved in the inner cavity of the inner shell 4, support rods 52 are respectively disposed on the inner walls of the diagonal positions of the hexagonal isolation sleeve 51, an arc-shaped plate 53 is fixedly connected to the ends of the support rods 52, the arc-shaped surface of the arc-shaped plate 53, which is far away from the support rods 52, is attached to the outer wall of the cable core 54, the arc-shaped plates 53 are sleeved outside the cable core 54 at intervals, a reinforcing rod 55 is disposed on the outer wall of the gap between the adjacent arc-shaped plates 53, the reinforcing rod 55 is connected to the inner wall of the hexagonal isolation sleeve 51, the reinforcing rod 55 is disposed in the middle of the edge of the hexagonal isolation sleeve 51, the reinforcing rod 55 is a member made of a flexible material, when the cable is severely extruded, the hexagonal isolation sleeve 51 cooperates with the support rods 52 and the arc-shaped plates 53 at the diagonal positions to support and protect the cable core 54, the diagonal positions of the isolation sleeve 51 have strong deformation resistance, and can be effectively lower than the damage to the cable core 54 caused by extrusion, further strengthen the anti extrusion barrier propterty to cable conductor 54, there is the gap simultaneously between hexagonal spacer sleeve 51 and the 4 inner walls of inner shell cover, and it can be used to the extrusion cavity buffering of cable conductor 54, convenient practicality.

The working principle is as follows: when the cable is extruded, the outer sleeve 31 is extruded to push the adjacent elastic support strips 32 to deform and expand towards two sides, the first elastic pull rope 35 and the second elastic pull rope 36 are pulled and extended by the elastic support strips 32 after deformation, the extrusion impact on the outer sleeve 31 is resisted by utilizing the deformation expansion of the elastic support strips 32 and the stress stretching of the elastic pull ropes, and finally the elastic support strips are contacted with the buffer cushion block 34 for buffering, so that the extrusion deformation resistance of the cable is improved, and the cable is fully protected against breakage; when the cable received serious extrusion, the bracing piece 52 and the arc 53 of hexagonal spacer sleeve 51 cooperation diagonal department supported the protection to cable conductor 54, and hexagonal spacer sleeve 51 is strong to diagonal department anti deformability, can be effectively less than the injury that the extrusion led to the fact cable conductor 54, further strengthens the anti extrusion barrier propterty to cable conductor 54, has the gap simultaneously between hexagonal spacer sleeve 51 and the 4 inner walls of inner shell cover, and it can be used to the extrusion cavity buffering to cable conductor 54.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an anti extruded super five types of shielded cable, includes shell body (1), and shell body (1) is used for protecting the cable part of its inside setting, and the inner chamber of shell body (1) is provided with shielding jacket layer (2), its characterized in that: the inner cavity of the shielding sleeve layer (2) is provided with a buffering sleeve member (3), the inner cavity of the buffering sleeve member (3) is sleeved with an inner shell sleeve (4), and the inner cavity of the inner shell sleeve (4) is sleeved with a cable inner core (5);

buffer external member (3) and outer sleeve (31) that shield jacket layer (2) inner wall was laminated mutually, even interval is provided with elastic support strip (32) on the inner wall of outer sleeve (31), the terminal fixed connection of elastic support strip (32) is on the outer wall of inner sleeve (33), inner shell (4) are cup jointed to the inside of inner sleeve (33), and be provided with cushion block (34) on inner sleeve (33) outer wall between adjacent elastic support strip (32) respectively, be provided with first elasticity stay cord (35) and second elasticity stay cord (36) respectively between elastic support strip (32) the lateral wall in the cushion block (34) outside.

2. The anti-extrusion super-five shielded cable according to claim 1, wherein: the outer shell body (1) comprises a base layer (11) which is attached to the shielding sleeve layer (2), a fireproof layer (12) is arranged on the outer wall of the base layer (11), a fireproof airbag (13) is wrapped on the outer wall of the fireproof layer (12), a metal film (14) is wrapped on the outer wall of the fireproof airbag (13), and an outer shell sleeve (15) is wrapped on the outer wall of the metal film (14).

3. The anti-extrusion super-five shielded cable according to claim 2, wherein: the fireproof air bag (13) is of a cylindrical structure, and at least one gas of nitrogen and carbon dioxide is filled in the fireproof air bag.

4. The anti-extrusion super-five shielded cable according to claim 3, wherein: the outer casing (15) is a member made of epoxy resin material, and is adhered, pressed and fixedly connected to the outer wall of the metal film (14).

5. The anti-extrusion super-five shielded cable according to claim 1, wherein: and the adjacent elastic support bars (32) are arranged in a splayed manner, and when the elastic support bars are far away from the inner sleeve (33) and are not extruded to deform and expand towards two sides, the first elastic pull rope (35) and the second elastic pull rope (36) between the side walls of the elastic support bars are kept in a normal straightening state.

6. The anti-extrusion super-five shielded cable according to claim 1, wherein: the cable inner core (5) is provided with bracing piece (52) respectively including cup jointing in hexagonal insulation sleeve (51) of inner shell cover (4) inner chamber on the diagonal department inner wall of hexagonal insulation sleeve (51), the terminal fixedly connected with arc (53) of bracing piece (52), the outer wall setting of the cambered surface laminating cable core (54) of keeping away from bracing piece (52) one end of arc (53), arc (53) spacer ring cover is outside in cable core (54).

7. The anti-extrusion super-five shielded cable according to claim 6, wherein: and a reinforcing rod (55) is arranged at the outer wall of the gap between the adjacent arc-shaped plates (53), the reinforcing rod (55) is connected with the inner wall of the hexagonal isolation sleeve (51), and the reinforcing rod (55) is arranged at the middle part of the edge of the hexagonal isolation sleeve (51).