3results about How to "Damage prevention" patented technology

The application relates to the field of optical fiber winding, and discloses a mesh multi-core optical fiber winding device which comprises a rack, a winding component and a feeding assembly arranged on the rack, the winding component comprises a winding assembly, a first linear module and a driving assembly, the winding assembly comprises two movable supports, the opposite sides of the two movable supports are provided with rotating shafts, the opposite ends of the two rotating shafts are coaxially provided with winding shafts, the opposite ends of the two winding shafts are coaxially provided with side discs, the rotating shafts are in the shape of hollow shafts and are provided with avoiding openings on the outer circular surfaces, the guiding directions of the avoiding openings are parallel to the axial line directions of the rotating shafts, the rotating shafts coaxially have second lead screws inside, the movable supports are provided with movable discs outside, the inner annular surfaces of the movable discs are provided with support bodies, the support bodies are in threaded connection with the second lead screws, the support bodies are in sliding guiding cooperation with the avoiding openings, the side of the movable disc facing the winding shaft is provided with a limiting lug, and the limiting lug is made of elastic material.

This utility model relates to the technical field of pre-cooling devices, and provides a pre-cooling device for preserving fruits and vegetables after harvesting. It includes a shell, a box for storing ice packs fixedly installed on the bottom inner wall of the shell; two support blocks fixedly installed on the inner walls of both sides of the box, with placement frames for storing fruits and vegetables placed on the two support blocks, each placement frame having multiple first through holes; a cover plate disposed on the shell; two mesh frames fixedly installed on the inner walls of both sides of the shell, each mesh frame having an odor-removing box for deodorization and sterilization inside; a cover fixedly installed on the cover plate; and a fixing mechanism assembled on the cover for pressing the fruits and vegetables. The pre-cooling device for preserving fruits and vegetables after harvesting provided by this solution solves the problem of existing pre-cooling devices for preserving fruits and vegetables after harvesting lacking a fixing function, leading to easy collision damage to fruits and vegetables during transportation.