▎ 摘　　要

NOVELTY - The tube has a lid assembly and a lipstick tube whose bottom assembly are buckled together to form a tube body. The bottom assembly includes a middle beam core assembly (1) and a bottom cover (2). A threaded sleeve (104) of the center beam core assembly is provided with a ring gear on one end of outer diameter. An inner cover (3) is provided with a cover rib on the outer diameter of one end of the cover. The groove ring of the inner diameter of the inner cover is provided with a sealing rib (303) protruding inward. The upper outer diameter of the groove ring of the inner cover is provided with upper adhesive ribs. The upper viscose ribs of the inner cover are sleeved into the aluminum outer cover. The inner cover is fixed inside the aluminum outer cover. The inner cover and the aluminum outer cover are connected. The inner cover is fastened to the upper ring rib at the lid opening of the bottom cover through the sealing ribs. USE - Lightweight and pressure-resistant oblique mouth square lipstick tube. ADVANTAGE - Lightweight and pressure-resistant oblique mouth square lipstick tube with excellent pressure resistance is achieved, and the problems of inconvenient production and assembly due to poor structural design of the existing tube, high production cost, and poor stability and air tightness of existing tube are solved. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a material preparation method of the lightweight and pressure-resistant oblique mouth square lipstick tube. DESCRIPTION OF DRAWING(S) - The drawing shows an exploded perspective view of the lightweight and pressure-resistant oblique mouth square lipstick tube. Middle beam core assembly (1) Bottom cover (2) Inner cover (3) Threaded sleeve (104) Sealing rib (303)