Novel aerogel heat insulation oil casing

The invention provides a novel aerogel heat insulation oil casing, and relates to the technical field of heat insulation oil casings. Comprising an inner sleeve, an annular groove is formed in the outer side face of the inner sleeve, an outer sleeve is arranged on the outer side of the inner sleeve in a sleeving mode, an aerogel heat insulation layer is arranged in an annular cavity of the inner sleeve and the outer sleeve in a sleeving mode, and a thread is arranged at one end of the inner sleeve. One end, far away from the upper thread, of the inner sleeve is provided with blind holes at equal intervals in the circumferential direction, sliding columns are connected in the blind holes of the inner sleeve in a sliding mode, sealing rubber sleeves are jointly and fixedly connected between the sliding columns at equal intervals in the circumferential direction, and the sealing rubber sleeves are connected with the inner sleeve in a sliding mode and matched with the inner sleeve in a sealing mode. The adjacent