FIELD: electricity.
SUBSTANCE: invention relates to protective device against wire break as it is pulled through hole in wall in connecting coupling of hose or pipe, in particular vacuum cleaner hose. Device comprises mount base and support elastic spiral arranged as a whole with mount base. Connecting coupling is equipped with output nozzle, which adjoins opening in wall. Wire is embraced with mount base and support elastic spiral, and mount base is embraced with output nozzle and has the possibility of movement till it is engaged with output nozzle with geometric closure.
EFFECT: invention increases reliability of joint.
9 cl, 12 dwg
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