A line tube adapter assembly comprising: a housing provided with an accommodation cavity ; a connector comprising a base and a transmission line , wherein the base is accommodated in the accommodation cavity , and the transmission line is connected to one end of the base ; a line storage device accommodated in the accommodation cavity , wherein the line storage device is provided with an accommodation space configured to accommodate part of the transmission line ; a line tube provided at one end of the line storage device away from the base , the line tube being connected to the housing ; a third limiting part, and a fourth limiting part adapted to the third limiting part, wherein the third limiting part is located in the accommodation cavity and is provided on an inner wall of the housing , the fourth limiting part is provided on an outer wall of the line storage device , and the third limiting part and the fourth limiting part match to circumferentially fix the line storage device and the housing , wherein the inner wall of the housing is provided with a third plane, the third plane being the third limiting part, and the outer wall of the line storage device is provided with a fourth plane , the fourth plane being the fourth limiting part, and the third plane is fitted with the fourth plane , characterized in that the accommodation space is a through-hole extending through the line storage device from one end close to the base to one end away from the base ; the outer wall of the line storage device is further provided with a side opening communicating with the accommodation space , and the accommodation space always communicates with the side opening from one end close to the base to one end away from the base ; the side opening divides the fourth plane into two parts. a housing provided with an accommodation cavity ; a connector comprising a base and a transmission line , wherein the base is accommodated in the accommodation cavity , and the transmission line is connected to one end of the base ; a line storage device accommodated in the accommodation cavity , wherein the line storage device is provided with an accommodation space configured to accommodate part of the transmission line ; a line tube provided at one end of the line storage device away from the base , the line tube being connected to the housing ; a third limiting part, and a fourth limiting part adapted to the third limiting part, wherein the third limiting part is located in the accommodation cavity and is provided on an inner wall of the housing , the fourth limiting part is provided on an outer wall of the line storage device , and the third limiting part and the fourth limiting part match to circumferentially fix the line storage device and the housing , wherein the inner wall of the housing is provided with a third plane, the third plane being the third limiting part, and the outer wall of the line storage device is provided with a fourth plane , the fourth plane being the fourth limiting part, and the third plane is fitted with the fourth plane , characterized in that the accommodation space is a through-hole extending through the line storage device from one end close to the base to one end away from the base ; the outer wall of the line storage device is further provided with a side opening communicating with the accommodation space , and the accommodation space always communicates with the side opening from one end close to the base to one end away from the base ; the side opening divides the fourth plane into two parts. <EOS>