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.