CN212874115U

CN212874115U - Shielded electric wire

Info

Publication number: CN212874115U
Application number: CN202021789876.6U
Authority: CN
Inventors: 何桃
Original assignee: Yangzhou Haihong Cable Co ltd
Current assignee: Yangzhou Haihong Cable Co ltd
Priority date: 2020-08-21
Filing date: 2020-08-21
Publication date: 2021-04-02
Anticipated expiration: 2030-08-21

Abstract

The utility model belongs to the technical field of shielded wires, and discloses a shielded wire, which comprises a sheath, wherein the outer wall of the sheath is provided with a reinforcing sleeve, the inside of the sheath is connected with four wires, four wires are all provided with an insulating layer, the inner wall of the sheath is fixed with a first shielding layer, the inner wall of the first shielding layer is connected with a flame-retardant layer, the outer wall of the insulating layer is provided with a toughening layer, the outer wall of the toughening layer is connected with a second shielding layer, the outer wall of the reinforcing sleeve is provided with a wear-resistant layer, the outer wall of the wear-resistant layer is connected with a lug, the utility model can greatly enhance the anti-torsion and high-temperature resistance of the cable through the matching of the toughening layer and the flame-retardant layer, avoid the cable from being broken when being twisted, and can greatly enhance the wear resistance of the surface of the reinforcing sleeve through the matching of the wear-, and then can reduce the wearing and tearing consumption of cable, improve the life of cable.

Description

Shielded electric wire

Technical Field

The utility model belongs to the technical field of the shielded cable, concretely relates to shielded wire.

Background

The shielding cable is a cable with external electromagnetic interference resistance formed in a mode of adding a shielding layer outside a transmission cable, most shielding layers of the cable are woven into meshed metal wires or metal films, multiple different modes of single shielding and multiple shielding are provided, the single shielding refers to a single shielding net or shielding film, one or more wires can be wrapped in the shielding net or shielding film, the multiple shielding modes are multiple shielding nets, the shielding films are located in the same cable, some shielding films are used for isolating electromagnetic interference between the wires, some shielding films are used for enhancing a shielding effect and adopt double-layer shielding, and the shielding mechanism is that the shielding layer is grounded to isolate induction interference voltage of an external connection to the wires.

In chinese patent CN201922369016.0, a shielded cable is disclosed, which is provided with a metal shielding layer to improve the anti-interference shielding capability of the cable, but the device still has more defects in practical use, for example, the cable has poor torsion resistance, insufficient toughness, and easy breakage during twisting, thereby affecting the service life of the cable, and is easy to deform and damage due to extrusion, and has poor pressure resistance, and is difficult to meet the practical use requirements.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a shielded wire to the antitorque commentaries on classics ability that proposes is poor among the solution above-mentioned background art, and receives the problem that the extrusion easily takes place the deformation damage.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a shielded wire, includes the sheath, the reinforcement sleeve is installed to the outer wall of sheath, and four wires of the internal connection of sheath, four the insulating layer is all installed to the outer wall of wire, the inner wall of sheath is fixed with first shielding layer, the inner wall connection of first shielding layer has fire-retardant layer, the layer is toughened to the outer wall of insulating layer is installed, the outer wall connection on layer is toughened has the second shielding layer, the wearing layer is installed to the outer wall of reinforcement sleeve, the outer wall connection of wearing layer has the lug.

Preferably, a cavity groove is formed between the inside and the outside of the reinforcing sleeve, a spring is fixed inside the cavity groove, a limiting block is installed at one end of the spring, one end, far away from the spring, of the limiting block extends to the inside of the reinforcing sleeve, and a limiting groove matched with the limiting block is formed in the outer wall of the sheath.

Preferably, the sheath has reinforcing ribs mounted therein, and the reinforcing ribs are located at positions between the four wires.

Preferably, through holes are formed between the inside and the outside of the reinforcing sleeve, and the through holes and the cavity grooves are distributed at intervals.

Preferably, the outer wall of the wear-resistant layer is provided with a waterproof film, and the interval between every two adjacent lugs is equal.

Preferably, the reinforcing rib and the lead are both cylindrical, and the outer diameter of the reinforcing rib is larger than that of the lead.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model discloses a cooperation of toughening layer and fire-retardant layer can strengthen antitorque commentaries on classics, the high temperature resistance of cable greatly, and fracture occurs when having avoided the cable distortion, simultaneously through the cooperation of wearing layer and lug, can strengthen the wear resistance on reinforcement sleeve surface greatly, and has the stable effect of antiskid, and then can reduce the wearing and tearing consumption of cable, has improved the life of cable.

(2) The utility model discloses a cooperation of chamber groove and spring can play the absorbing effect of buffering when the uide bushing receives the extrusion to improved the compressive property of cable, prevented that the cable from warping and damaging, improved the security of device, simultaneously through the cooperation of stopper and spacing groove, can improve the joint strength between uide bushing and the sheath 5 greatly, improved the stability of cable.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is an enlarged view of portion B of FIG. 1;

in the figure: 1. reinforcing ribs; 2. a wear layer; 3. a bump; 4. a reinforcing sleeve; 5. a sheath; 6. a spring; 7. a flame retardant layer; 8. a cavity groove; 9. a first shielding layer; 10. a wire; 11. a second shielding layer; 12. a toughening layer; 13. an insulating layer; 14. a limiting block; 15. a limiting groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides the following technical solutions: a shielded wire comprises a sheath 5, a reinforcing sleeve 4 is installed on the outer wall of the sheath 5, four wires 10 are connected inside the sheath 5, insulating layers 13 are installed on the outer walls of the four wires 10, a first shielding layer 9 is fixed on the inner wall of the sheath 5, a flame retardant layer 7 is connected on the inner wall of the first shielding layer 9, a toughening layer 12 is installed on the outer wall of the insulating layer 13, a second shielding layer 11 is connected on the outer wall of the toughening layer 12, a wear-resistant layer 2 is installed on the outer wall of the reinforcing sleeve 4, the wear-resistant layer 2 is made of polyester fibers and has the characteristics of wear resistance and corrosion resistance, a bump 3 is connected on the outer wall of the wear-resistant layer 2, the toughening layer 12 is made of a glass fiber layer and has excellent high elastic recovery rate and high fracture elongation, the flame retardant layer 7 is made of a ceramic fiber layer and has excellent high temperature resistance, light weight and good thermal stability, and the toughening layer 12, can strengthen antitorque commentaries on classics, the high temperature resistance of cable greatly, fracture when having avoided the cable distortion, simultaneously through wearing layer 2 and lug 3's cooperation, can strengthen the wear resistance on 4 surfaces of reinforcement sleeve greatly, and have the stable effect of antiskid, and then can reduce the wearing and tearing consumption of cable, improve the life of cable.

Further, chamber groove 8 has been seted up between the inside of uide bushing 4 and the outside, the inside of chamber groove 8 is fixed with spring 6, stopper 14 is installed to the one end of spring 6, stopper 14 keeps away from the one end of spring 6 and extends to the inside of uide bushing 4, the outer wall of sheath 5 seted up with stopper 14 assorted spacing groove 15, cooperation through chamber groove 8 and spring 6, can play buffering absorbing effect when uide bushing 4 receives the extrusion, thereby the pressure resistance of cable has been improved, the cable deformation damage has been prevented, the security of device has been improved, simultaneously through stopper 14 and spacing groove 15's cooperation, can improve the joint strength between uide bushing 4 and the sheath 5 greatly, the stability of cable has been improved.

Further, the reinforcing ribs 1 are installed inside the sheath 5, the connection strength of the wires 10 can be improved by the reinforcing ribs 1, and the reinforcing ribs 1 are located at positions between the four wires 10.

Specifically, the through holes are formed between the inside and the outside of the reinforcing sleeve 4, material consumption can be reduced through the through holes, the effect of saving cost is achieved, and the through holes and the cavity grooves 8 are distributed at intervals.

Specifically, the outer wall of the wear-resistant layer 2 is provided with a waterproof film, the waterproof film has a waterproof effect, and the interval between two adjacent convex blocks 3 is equal.

Specifically, the reinforcing rib 1 and the lead wire 10 are both cylindrical, and the outer diameter of the reinforcing rib 1 is larger than that of the lead wire 10.

The utility model discloses a theory of operation and use flow: when the utility model is used, the anti-interference ability of the cable can be improved through the matching of the first shielding layer 9 and the second shielding layer 11, the wear-resisting property of the surface of the reinforcing sleeve 4 can be greatly enhanced through the matching of the wear-resisting layer 2 and the convex block 3, and the anti-skid and stable effects are provided, so that the wear consumption of the cable can be reduced, meanwhile, the anti-torsion and high-temperature resistance of the cable can be greatly enhanced through the matching of the toughening layer 12 and the flame-retardant layer 7, the cable is prevented from being broken when being twisted, the service life of the cable is prolonged, in addition, the buffer and shock absorption effects can be played when the reinforcing sleeve 4 is extruded through the matching of the cavity groove 8 and the spring 6, so that the pressure-resisting property of the cable is improved, the deformation and damage of the cable are prevented, the safety of the device is improved, and simultaneously, the connecting strength between the reinforcing sleeve 4 and the sheath 5 can be greatly improved through the matching, the stability of the cable is improved.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A shielded electric wire characterized in that: including sheath (5), the reinforcement sleeve (4) is installed to the outer wall of sheath (5), and the internal connection of sheath (5) has four wires (10), four insulating layer (13) are all installed to the outer wall of wire (10), the inner wall of sheath (5) is fixed with first shielding layer (9), the inner wall of first shielding layer (9) is connected with fire-retardant layer (7), layer (12) are toughened to the outer wall of insulating layer (13) is installed, the outer wall of layer (12) is connected with second shielding layer (11) toughens, wearing layer (2) are installed to the outer wall of reinforcement sleeve (4), the outer wall of wearing layer (2) is connected with lug (3).

2. The shielded electric wire according to claim 1, wherein: seted up chamber groove (8) between the inside and the outside of reinforcement sleeve (4), the inside of chamber groove (8) is fixed with spring (6), stopper (14) are installed to the one end of spring (6), the one end that spring (6) were kept away from in stopper (14) extends to the inside of reinforcement sleeve (4), the outer wall of sheath (5) seted up with stopper (14) assorted spacing groove (15).

3. The shielded electric wire according to claim 1, wherein: the internal installation of sheath (5) has strengthening rib (1), and strengthening rib (1) is located the position department between four wire (10).

4. The shielded electric wire according to claim 2, wherein: through holes are formed between the inside and the outside of the reinforcing sleeve (4), and the through holes and the cavity grooves (8) are distributed at intervals.

5. The shielded electric wire according to claim 1, wherein: the outer wall of the wear-resistant layer (2) is provided with a waterproof film, and the interval between every two adjacent lugs (3) is equal.

6. A shielded electric wire according to claim 3, wherein: the reinforcing rib (1) and the lead (10) are both cylindrical, and the outer diameter of the reinforcing rib (1) is larger than that of the lead (10).