US 12,214,543 B1
Auxiliary device for applying protective film
Ziqiang Li, Shenzhen Guangdong (CN)
Filed by Ziqiang Li, Shenzhen Guangdong (CN)
Filed on Apr. 22, 2024, as Appl. No. 18/642,457.
Int. Cl. B29C 63/22 (2006.01); B29C 63/00 (2006.01); B29C 63/02 (2006.01); B29L 31/34 (2006.01)
CPC B29C 63/0004 (2013.01) [B29C 63/0047 (2013.01); B29C 63/02 (2013.01); B29C 63/22 (2013.01); B29C 2063/0008 (2013.01); B29L 2031/3437 (2013.01); B29L 2031/3475 (2013.01)] 7 Claims
OG exemplary drawing
 
1. An auxiliary device for applying a protective film comprising a film application box (1), one end of the film application box (1) is provided with an accommodation cavity (2), two symmetrical sliding groove holes (3) are opened on the film application box (1), each sliding groove hole (3) is provided with a moving block (4), a front end of each moving block (4) is fixedly installed with an installation box (5), a rear end of each moving block (4) is fixedly installed with a stop block (6), two limiting rings (7) are fixedly installed inside the accommodation cavity (2), and one side of the film application box (1) is provided with the protective film (8).