2results about How to "Consistent shape and size" patented technology

This utility model discloses a glue-free self-locking handle packaging box, including a box body and a box bottom. The box bottom is located at one end of the box body and also includes a first cover, a second cover, a first locking plate, and a second locking plate. The first cover, second cover, first locking plate, and second locking plate are distributed around the perimeter of the box body. A first handle is attached to the first cover, and a second handle is attached to the second cover. A first locking opening is provided on the first cover, and a second locking opening is provided on the second cover. When the box is sealed, the first cover and the second cover are in the same plane, and the first handle and the second handle are parallel, close together, and tightly fitted. This packaging box has the following advantages: after sealing, the force is borne by the first and second locking plates. Compared to point contact, surface contact has a larger force-bearing surface, preventing the box from stretching and cracking, and making it less prone to tearing.

The utility model discloses hinge parts, including first pressure plate, with the side pin shaft that connects with first pressure plate to the swing arm, second pressure plate and first elastic piece that set up in turn in side pin shaft and along side pin shaft slidably, swing arm is rotatable relative to second pressure plate, and the boss and the crater that cooperate with boss are equipped on second pressure plate and swing arm respectively, and the shape of first pressure plate and second pressure plate is consistent. The utility model discloses novel structure, and the shape of first pressure plate and second pressure plate is consistent, reduces the spare parts category, does not need to deliberately distinguish first pressure plate and second pressure plate in the assembly process, can effectively improve the assembly efficiency of hinge parts, reduces the assembly and production cost of hinge parts.