Pulling-resistant communication lead

Abstract

The invention belongs to the field of aviation communication lead wire design, and particularly relates to a pulling-resistant communication lead wire. The tensile force of the communication lead used at present is not more than 200N, and the tensile strength of the existing communication lead structure is difficult to increase, so that the phenomenon that the communication lead is fractured due to pulling occurs in many cases. According to the anti-pulling communication lead, an upper connector and a lower connector are arranged at the two ends of the anti-pulling communication lead, and a steel wire, a wire and an outer skin are connected between the upper connector and the lower connector; the length of the wire is larger than that of the steel wire, and the wire is provided with at least one wound annular ring. On the basis that the appearance of an existing communication lead is not changed, the two steel wires are additionally arranged, and the cable is optimized to be bent into a circle, so that when the communication lead is pulled by 300 N, the cable or a welding position is not broken, and the use durability and reliability of the communication lead are improved.

Description

Technical Field

[0001] The invention belongs to the field of aviation communication lead design, and in particular relates to a pull-resistant communication lead. Background Art

[0002] During daily flight and when leaving the aircraft, the pilot needs to separate the helmet cable from the communication lead, which will exert a certain pulling force on the communication lead. The current communication lead has a pulling force of no more than 200N, and it is difficult to increase the pulling strength of the existing communication lead structure. In many cases, it will break due to pulling.

[0003] Therefore, a communication lead wire with greater tensile strength resistance is needed so that it will not be damaged when subjected to greater forces, thereby increasing the durability and reliability of the communication lead wire. Summary of the invention

[0004] The purpose of the present invention is to provide a pull-resistant communication lead wire, which can withstand a pulling force of more than 300N and increase the durability and reliability of the communication lead wire.

[0005] The technical solution of the present invention is: a pull-resistant communication lead, which has an upper connector and a lower connector at both ends, and a steel wire, a conductor and an outer sheath are connected between the upper connector and the lower connector; the length of the conductor is greater than the length of the steel wire, and the conductor has at least one wound annular ring.

[0006] Advantageously, solder cups are provided inside the upper connector and the lower connector, and two ends of the wire are soldered to the solder cups on both sides.

[0007] Advantageously, two ends of the steel wire are welded to the housings of the upper connector and the lower connector.

[0008] Advantageously, the housing of the upper connector and the housing of the lower connector are made of metal material.

[0009] Advantageously, there are two or more steel wires.

[0010] Advantageously, the outer sheath is made of insulating material, covering the steel wires and conducting wires.

[0011] Advantageously, the radius of the annular ring should be greater than 5 mm.

[0012] The advantages of the present invention are: without changing the shape of the existing communication lead, two steel wires are added and the cable is optimized to be bent into a circle, so that when the communication lead is subjected to a pulling force of 300N, the cable or the welding part will not break, thereby increasing the durability and reliability of the communication lead. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the anti-pull communication lead wire of the present invention. DETAILED DESCRIPTION

[0014] The present invention is described in further detail below.

[0015] See also Figure 1 The embodiment of the anti-pull communication lead wire shown includes an upper connector 1, steel wires 2, conductors 3, outer sheath 4 and a lower connector 5. The shell of the upper connector 1 is made of metal material, and a welding cup is provided at the lower part of the upper connector 1. The shell of the lower connector 5 is also made of metal material, and a welding cup is provided at the upper part. The shell of the upper connector 1 is welded to the upper ends of the two steel wires 2, and the lower ends of the steel wires 2 are welded to the shell of the lower connector 5.

[0016] The upper end of the wire 3 is welded to the welding cup of the upper connector 1, and the lower end is welded to the welding cup of the lower connector 5, and the wire 3 is wound with an annular loop near the lower connector 5. There is a layer of outer skin 4 outside the steel wire 2 and the wire 3 to protect the internal structure and insulation.

[0017] When the communication lead is pulled, the steel wire 2 can withstand a large force, and the annular ring of the wire 3 can also buffer a certain amount of pulling displacement, which is equivalent to leaving a certain length margin, which can buffer a small force, so that the force on the cable and the cable welding point can be ignored, and the wire will not be subjected to a large pulling force, thereby increasing the durability and reliability of the communication lead. The welding cup and the shell should be relatively fixed and should not be able to produce relative displacement. The tensile force of a single steel wire should be greater than 300N. The circular radius of the cable bend should be greater than 5mm. The outer skin material is an insulating material. The tensile force of the communication lead is greater than 300N.

Claims

1. A pull-resistant communication lead wire, characterized in that: The anti-pull communication lead has an upper connector (1) and a lower connector (5) at both ends, and a steel wire (2), a conductor (3) and an outer sheath (4) are connected between the upper connector (1) and the lower connector (5); the length of the conductor (3) is greater than the length of the steel wire (2), and the conductor (3) has at least one wound annular ring.

2. The pull-resistant communication lead according to claim 1, characterized in that: The upper connector (1) and the lower connector (5) have solder cups on their inner sides, and the two ends of the wire (3) are soldered to the solder cups on both sides.

3. The pull-resistant communication lead wire according to claim 2, characterized in that: The two ends of the steel wire (2) are welded to the housings of the upper connector (1) and the lower connector (5).

4. The pull-resistant communication lead wire according to claim 3, characterized in that: The housing of the upper connector and the housing of the lower connector are made of metal material.

5. The pull-resistant communication lead wire according to claim 4, characterized in that: The number of the steel wires (2) is more than two.

6. The pull-resistant communication lead wire according to claim 5, characterized in that: The outer skin (4) is made of insulating material and covers the steel wire (2) and the conducting wire (3).

7. The pull-resistant communication lead wire according to claim 1, characterized in that: The radius of the annular ring should be greater than 5 mm.

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