Mounting back frame of advertising machine

• Main Author: CHENG HANWEI
• Format: Patent
• Language: Chinese; English
• Published: 03.07.2020
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; FRAMES, CASINGS, OR BEDS OF ENGINES OR OTHER MACHINES ORAPPARATUS NOT SPECIFIC TO AN ENGINE, MACHINE, OR APPARATUSPROVIDED FOR ELSEWHERE; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; STANDS OR SUPPORTS; THERMAL INSULATION IN GENERAL; WEAPONS

The utility model relates to the technical field of advertising machines. The utility model relates to an advertising machine, in particular to an advertising machine mounting back frame. The device comprises a first supporting piece and a second supporting piece, the first supporting piece is provided with a cavity, a shaft rod is arranged in the cavity, a plurality of barbs are arranged on the second supporting piece, clamping grooves are formed in the barbs, first guide faces are arranged at the tail ends of the barbs, the second supporting piece is covered with the first supporting piece,and the shaft rod is in lap joint with the interiors of the clamping grooves in a guided mode through the barbs. The advertising machine has the beneficial effects that the advertising machine is fixed to an external stable component through the first supporting piece and the second supporting piece, and the shaft rod is in lap joint in the clamping groove through barb guiding, so that the secondsupporting piece is tightl