A coaxial radio frequency cable penetration seal

Abstract

The invention provides a coaxial radio frequency cable run-through sealing part. The sealing part comprises a circular adhesive pouring cylinder, a cable fixing board, an isolation assembly and cables, wherein more than two cable fixing holes for fixing and sealing cables are formed in the cable fixing board; the cable runs through the cable fixing holes and the adhesive pouring cylinder to enter a sealed container; the outer sheath on one section, in the middle of the adhesive pouring cylinder, of the corresponding cable is peeled off to form an adhesive permeating section; the exterior of the adhesive permeating section is surrounded by the isolation assembly; an adhesive inlet hole is formed in the isolation assembly; one end of the adhesive pouring cylinder is connected with the cable fixing board through a second flange; and the adhesive pouring cylinder is full of liquid sealant for sealing and blocking slot leakage among cables and the internal slot leakage of cable external conductors. According to the coaxial radio frequency cable run-through sealing part, the problem existing in sealing multiple cables led out of the sealed container is solved; meanwhile, the cable inner sealing and cable outer sealing are realized; and therefore, the coaxial radio frequency cable run-through sealing part has the advantages of no extra attenuation in signal transmission, simple structure, and reliable sealing performance.

Description

technical field [0001] The invention relates to a cable sealing structure, and more specifically, provides a coaxial radio frequency cable penetrating seal. Background technique [0002] In the signal acquisition of some airtight container experiments, a variety of coaxial radio frequency cables (referred to as cables) are used to connect the signal source and signal acquisition equipment, and the cables pass through the seal of the wall of the airtight container, which becomes the signal transmission in the airtight container experiment. Critical issues that must be addressed upfront. [0003] Analyzing the state of the cable passing through the closed container, it can be found that the leakage formed by it usually includes: 1. Leakage from the external gap between the cable and the cable; 2. Leakage from the internal gap of the cable outer conductor structural material itself formed by flexible metal wire braiding; 3. . Leakage from gaps in the inner conductor structure ...

AI Technical Summary

Problems solved by technology

The design of the cable sealing transfer device is usually complicated, and the transfer cost is high; the inner and outer cables of the airtight container are divided into two sections, which destroys the uniformity of the original structure of the cable. The phenomenon of reflected waves (for example, the publication number is 103066467A "a multi-coaxial cable seal penetrating sealing device"); at the same time, when the sealing adapter is connected to multiple cables, the outer conductor is often a common outer conductor (for example, the public No. 203983661U "a solid-core RF coaxial cable transfer device"), this type of sealing structure often causes mutual interference of transmitted signals when strong and weak signals are transmitted at the same time

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