CN215341989U

CN215341989U - Coaxial cable

Info

Publication number: CN215341989U
Application number: CN202022741209.7U
Authority: CN
Inventors: 朱慧; 胡传洋
Original assignee: Zhejiang Jiahui Cable Co ltd
Current assignee: Zhejiang Jiahui Cable Co ltd
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2021-12-28
Anticipated expiration: 2030-11-24

Abstract

The utility model discloses a coaxial cable which comprises an outer sheath, wherein a transmitting cable and three receiving cables are arranged inside the outer sheath, insulators are arranged on the surfaces of the receiving cables and the transmitting cables, a shielding layer is arranged on the surface of each insulator, an inner sheath is arranged on the surface of each shielding layer, and each shielding layer consists of an aluminum foil and a woven mesh. According to the utility model, by arranging the outer sheath and the inner sheath, the transmitting cable and the receiving cable can be protected, the service lives of the transmitting cable and the receiving cable are prolonged, the sealing performance of the transmitting cable and the receiving cable can be improved by the shielding layer, the influence of external current on the transmitting cable and the receiving cable is reduced, and the problems that the existing special cable is single in function and structure, the requirement for protecting the special cable cannot be met, the service life of the special cable is seriously influenced, and the condition that transmission signals are influenced frequently occurs are solved.

Description

Coaxial cable

Technical Field

The utility model relates to the technical field of special cables, in particular to a coaxial cable.

Background

The special cable is a special cable which can be used in special occasions, can resist high temperature, acid and alkali, and prevent termites, and the special cable is a wire cable used in occasions such as ship, airplane, nuclear power station, and the like, and does not belong to the same classification method with the classification of electric power, control, computer cables, and the like, namely the special cable is also included in the cables.

The function and the structure of the existing special cable are single, the requirement for protecting the special cable cannot be met, the service life of the special cable is seriously influenced, and the condition that a transmission signal is influenced frequently appears.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the background art, the utility model aims to provide a coaxial cable which has the advantage of improving the protection effect and solves the problems that the existing special cable has single function and structure, cannot meet the requirement of protecting the special cable, seriously influences the service life of the special cable and causes frequent occurrence of the condition that a transmission signal is influenced.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a coaxial cable, includes the oversheath, the inside of oversheath is provided with transmitting cable and receiving cable, the quantity of receiving cable is three, the receiving cable all is provided with the insulator with transmitting cable's surface, the surface of insulator is provided with the shielding layer, the surface of shielding layer is provided with the inner sheath, the shielding layer comprises aluminium foil and braided net, the aluminium foil parcel is on the surface of insulator, the braided net parcel is on the surface of aluminium foil, the braided net is woven for the tinned copper wire and is made.

Preferably, the inner sheath is made of LSZH, and the outer sheath is made of halogen-free flame-retardant elastomer.

Preferably, the outer sheath is internally provided with a filler, the filler is made of low-smoke halogen-free flame-retardant filler, and the filler is wrapped on the surfaces of the transmitting cable and the receiving cable.

Preferably, the material of the insulator is a nonpolar resin.

Preferably, the transmitting cable is made of a copper stranded wire, and the receiving cable is made of a silver-plated copper wire.

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

1. according to the utility model, by arranging the outer sheath and the inner sheath, the transmitting cable and the receiving cable can be protected, the service lives of the transmitting cable and the receiving cable are prolonged, the sealing performance of the transmitting cable and the receiving cable can be improved by the shielding layer, the influence of external current on the transmitting cable and the receiving cable is reduced, and the problems that the existing special cable is single in function and structure, the requirement for protecting the special cable cannot be met, the service life of the special cable is seriously influenced, and the condition that transmission signals are influenced frequently occurs are solved.

2. According to the utility model, the shielding layer is formed by the aluminum foil and the woven mesh, so that the influence of external current on the transmitting cable and the receiving cable can be reduced, and the stability and accuracy of signal transmission can be greatly improved.

3. According to the utility model, the LSZH and the halogen-free flame-retardant elastomer are used for manufacturing the outer sheath and the inner sheath, so that the special cable has good ultraviolet resistance, weather resistance and high temperature resistance, and is convenient to be used outdoors for a long time.

4. The special cable is provided with the filler, so that the overall strength of the special cable can be improved, the special cable can be conveniently and quickly reset after being bent, and the phenomena of cracking and the like are avoided.

5. The utility model can improve the tensile strength, the elongation at break and the tearing strength of the transmitting cable and the receiving cable by manufacturing the insulator by the non-polar resin.

6. According to the utility model, the transmitting cable and the receiving cable are manufactured by the copper stranded wires and the silver-plated copper wires, so that the phenomenon of fusing of the transmitting cable in the use process can be avoided, and the silver-plated copper wires can reduce the signal transmission loss and increase the signal transmission accuracy.

Drawings

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

FIG. 2 is a schematic front view of a transmit cable configuration of the present invention;

fig. 3 is a front view of the receiving cable structure of the present invention.

In the figure: 1. an outer sheath; 2. a transmission cable; 3. receiving a cable; 4. an insulator; 5. a shielding layer; 6. an inner sheath; 7. aluminum foil; 8. weaving a net; 9. and (4) filling materials.

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.

As shown in fig. 1 to 3, the coaxial cable provided by the utility model comprises an outer sheath 1, a transmitting cable 2 and a receiving cable 3 are arranged inside the outer sheath 1, the number of the receiving cables 3 is three, insulators 4 are arranged on the surfaces of the receiving cable 3 and the transmitting cable 2, a shielding layer 5 is arranged on the surface of the insulator 4, an inner sheath 6 is arranged on the surface of the shielding layer 5, the shielding layer 5 is composed of an aluminum foil 7 and a woven mesh 8, the aluminum foil 7 is wrapped on the surface of the insulator 4, the woven mesh 8 is wrapped on the surface of the aluminum foil 7, and the woven mesh 8 is woven by tinned copper wires.

As a technical optimization scheme of the utility model, the shielding layer 5 is formed by the aluminum foil 7 and the mesh grid 8, so that the influence of external current on the transmitting cable 2 and the receiving cable 3 can be reduced, and the stability and accuracy of signal transmission can be greatly improved.

Referring to fig. 3, the inner sheath 6 is made of LSZH, and the outer sheath 1 is made of halogen-free flame-retardant elastomer.

As a technical optimization scheme of the utility model, the outer sheath 1 and the inner sheath 6 are manufactured by LSZH and halogen-free flame-retardant elastomer, so that the special cable has good ultraviolet resistance, weather resistance and high temperature resistance, and is convenient to be used outdoors for a long time.

Referring to fig. 1, a filler 9 is disposed inside the outer sheath 1, the filler 9 is made of a low-smoke halogen-free flame-retardant filler, and the filler 9 is wrapped on the surfaces of the transmission cable 2 and the reception cable 3.

As a technical optimization scheme of the utility model, the filler 9 is arranged, so that the overall strength of the special cable can be improved, the special cable can be conveniently and quickly reset after being bent, and the phenomena of cracking and the like are avoided.

Referring to fig. 2, the material of the insulator 4 is a nonpolar resin.

As a technical optimization of the present invention, the tensile strength, elongation at break and tear strength of the transmission cable 2 and the reception cable 3 can be improved by manufacturing the insulator 4 with a nonpolar resin.

Referring to fig. 1, the transmission cable 2 is made of a copper stranded wire, and the reception cable 3 is made of a silver-plated copper wire.

As a technical optimization scheme of the utility model, the transmitting cable 2 and the receiving cable 3 are manufactured by the copper stranded wires and the silver-plated copper wires, so that the phenomenon that the transmitting cable 2 is fused in the using process can be avoided, the silver-plated copper wires can reduce the signal transmission loss, and the signal transmission accuracy is improved.

The working principle and the using process of the utility model are as follows: during the use, send data and utilize receiving cable 3 to receive data through transmitting cable 2, and oversheath 1 and inner sheath 6 can protect transmitting cable 2 and receiving cable 3, improve transmitting cable 2 and receiving cable 3's life, shielding layer 5 can improve transmitting cable 2 and receiving cable 3's leakproofness, reduce the influence that external current caused transmitting cable 2 and receiving cable 3, filler 9 can improve the bulk strength of special cable, avoid the whole phenomenons such as fracture to appear in the in-process of bending of cable.

In summary, the following steps: this coaxial cable, through setting up oversheath 1 and inner sheath 6, can protect transmitting cable 2 and receiving cable 3, improve transmitting cable 2 and receiving cable 3's life, shielding layer 5 can improve transmitting cable 2 and receiving cable 3's leakproofness, reduce the influence that external current caused transmitting cable 2 and receiving cable 3, it is comparatively single with the structure to have solved current special type cable function, can't satisfy the demand of protecting to special type cable, the life of special type cable has seriously been influenced, lead to transmission signal to receive the problem that the condition of influence frequently appears.

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. A coaxial cable comprising an outer sheath (1), characterized in that: the utility model discloses a cable protection device, including oversheath (1), the inside of oversheath is provided with transmitting cable (2) and receiving cable (3), the quantity of receiving cable (3) is three, the surface of receiving cable (3) and transmitting cable (2) all is provided with insulator (4), the surface of insulator (4) is provided with shielding layer (5), the surface of shielding layer (5) is provided with inner sheath (6), shielding layer (5) comprise aluminium foil (7) and mesh grid (8), aluminium foil (7) parcel is on the surface of insulator (4), mesh grid (8) parcel is on the surface of aluminium foil (7), mesh grid (8) are woven for the tinned copper wire and are made.

2. A coaxial cable as defined in claim 1, wherein: the inner sheath (6) is made of LSZH, and the outer sheath (1) is made of halogen-free flame-retardant elastomer.

3. A coaxial cable as defined in claim 1, wherein: the utility model discloses a fire-retardant cable, including oversheath (1), the inside of oversheath (9) is provided with filler (9), the material of filler (9) is low smoke and zero halogen fire-retardant stopping material, filler (9) parcel is on the surface of transmitting cable (2) and receiving cable (3).

4. A coaxial cable as defined in claim 1, wherein: the material of the insulator (4) is nonpolar resin.

5. A coaxial cable as defined in claim 1, wherein: the transmitting cable (2) is made of a copper stranded wire, and the receiving cable (3) is made of a silver-plated copper wire.