Cable connecting assembly

A cable connecting assembly for being connected to a cable, said cable connecting assembly comprising:

• a hollow barrel member extending in a lengthwise direction and defining an accommodating space and including
• a main body that has a first end portion, and a second end portion opposite to said first end portion in the lengthwise direction and being formed with an internal thread, and
• an extending portion that extends from said first end portion away from said second end portion, said accommodating space extending in the lengthwise direction through said main body and said extending portion;
• a tubular member disposed in said accommodating space, and including a tubular body that defines a receiving space adapted to receive the cable therein, and that has an outer surface formed with two annular grooves spaced apart from each other in the lengthwise direction;
• a securing member having
• a coupling portion that has an external thread threadedly engaging said internal thread of said second end portion of said main body of said barrel member, and that abuts against said tubular member, and
• an abutment portion that is connected to said coupling portion, that abuts against said second end portion of said main body and is located outside of said accommodating space, and that cooperates with said coupling portion to form a through hole extending in the lengthwise direction and communicating spatially with said receiving space, said through hole being adapted for extension of the cable therethrough into said receiving space;
• and
• a seal unit including two first seal rings that are respectively disposed in said annular grooves of said tubular member and that sealingly contact an inner surface of said main body of said barrel member, and a second seal ring that is sleeved on said coupling portion of said securing member and that sealingly contacts said inner surface of said main body and said abutment portion of said securing member.