Leaky cable fixture with multiple self-locking functions

Abstract

The invention discloses a leaky cable fixture with multiple self-locking functions. The leakage cable fixture comprises a fixing seat for fixing a leaky cable and a clamping cover, and the fixing baseis provided with a first clamping jaw and a second clamping jaw. The clamping cover is provided with a rotating part and a clamping part, the clamping part of the clamping cover is connected with thesecond clamping jaw in a buckled mode, anti-loosening structures capable of being installed in a matched mode are arranged on the clamping part and the hooking and clamping face of the second clamping jaw respectively, each anti-loosening structure comprises a limiting hole and a limiting protrusion, and when the clamping part is connected with the second clamping jaw in a buckled mode, the limiting protrusions are located in the limiting holes. The rotating part of the clamping cover is rotatably connected with the first clamping jaw, and the first clamping jaw, the second clamping jaw and the clamping cover form a containing cavity for the leaky cable to penetrate through. The leaky cable fixture disclosed by the invention is integrally mounted and is convenient to mount; and an expansion anchor bolt fastening mode is adopted, multiple self-locking is achieved, safety and reliability are achieved, and the tensile bearing capacity and the shear bearing capacity are high.

Description

technical field [0001] The invention relates to the technical field of urban rail transit wireless communication, in particular to a leaky cable clamp with multiple self-locking functions. Background technique [0002] As of the end of 2018, a total of 35 cities in my country's non-Hong Kong, Macao and Taiwan regions have opened 185 urban rail transit operating lines, with a total length of 5,761.4 kilometers. In that year, the length of new operating lines was 728.7 kilometers. The accumulative total length of new operating lines is 2143.4 kilometers. The total length of the lines under construction is 6,374 kilometers. By the end of 2018, a total of 63 cities had been approved for urban rail transit network planning. [0003] With the rapid development of my country's urban rail transit and the mature application of 5G mobile communication technology, leaky cables, the best signal transmission medium in the field of urban rail transit wireless communication technology, h...

AI Technical Summary

Problems solved by technology

Changes in the outer diameter of the leaky cable can easily cause the nylon buckle 16 to be different in tightness, and the outer diameter of the leaky cable will become larger or smaller, which will easily cause the nylon buckle 16 to disengage;

[0007] 2. The junction 15 of the nylon clip 12 is easy to break

The leaky cable clamp is laid for a long time in a low-temperature working environment or in a low-temperature environment, and the joint 15 will be subject to stress from multiple directions, which can easily cause fracture at this place;

[0008] 3. The tensile bearing capacity and shear bearing capacity are small

Because the nylon buckle 16 is only a function of a hook and does not have a self-locking function, the buckle is very easy to disengage when the leaky cable clamp is subjected to tensile bearing capacity and shear bearing capacity;

[0009] 4. Installation is inconvenient and prone to installation problems

The thickness change of the outer diameter of the leaky cable and the action of the external force on the leaky cable will still cause the cover to be disengaged;

[0012] 2. The connecting rope 23 or connecting belt is easy to break

Because the connecting rope 23 or the connecting belt is small, the leaky cable fixture is subjected to the impact load, impact force and wind vibration produced by the piston effect when the train passes by during the installation process or for a long time, which may easily cause the connecting rope 23 or the connecting belt to break, affecting the clamping. safe;

[0013] 3. Inconvenient installation

When installing, first install the expansion anchor 29 firmly, and then install the metal connecting rod 25, the nylon base 11, the nylon clamp 12 and the fastening bolt 24 in sequence, and there are many installation parts, so the installation efficiency is low

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