Anti-falling structure with replaceable four corners of mobile phone shell

By designing a replaceable four-corner structure for the phone case, and using three layers of drop-proof corner pieces and a connecting mechanism, the problem of resource waste and poor drop protection caused by replacing the entire case is solved, achieving convenient replacement and efficient protection.

CN224367883UActive Publication Date: 2026-06-16DONGGUAN LINZE COMM EQUIP CO LTD
0 Cites 0 Cited by

Patent Information

Application Number
CN202521690449.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-11
Publication Date
2026-06-16
Estimated Expiration
2035-08-11

AI Technical Summary

Technical Problem

Existing phone cases require complete replacement after all four corners are damaged, leading to resource waste and increased costs, and their drop protection is inadequate.

Method used

Design a phone case with replaceable four corners for drop protection. The three-layer drop protection corner pieces include an outer protective layer, a buffer layer, and an inner support layer. The design allows for detachable installation via a connecting mechanism. Silicone and PC+ABS alloy materials are combined to enhance protection and cushioning performance.

Benefits of technology

It enables convenient replacement of the drop-proof corner pieces, reduces usage costs, improves the drop-proof effect of the phone, provides sufficient protection, and enhances the phone's drop resistance and lifespan.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The utility model relates to the technical field of mobile phone accessories, and discloses a mobile phone shell four-corner replaceable anti-drop structure, which comprises a mobile phone shell main body, the mobile phone shell main body is used for wrapping the side surface and the back surface of a mobile phone, and the four corners of the mobile phone shell main body are respectively provided with a mounting groove. According to the anti-falling structure with the replaceable four corners of the mobile phone shell, the anti-falling corner pieces can be stably mounted in the mounting grooves through the connecting mechanisms, a user can conveniently replace the anti-falling corner pieces, and when a certain corner of the mobile phone shell is damaged due to falling, the user only needs to replace the damaged anti-falling corner pieces instead of replacing the whole mobile phone shell; in addition, the anti-falling corner fitting is of a three-layer structural design, the outer-layer protection part can be in direct contact with the outside to play a preliminary protection role, the buffer layer is located between the outer-layer protection part and the inner-layer supporting part, impact force generated when a mobile phone falls can be effectively dispersed and absorbed, and the service life of the anti-falling corner fitting is prolonged. And the inner-layer supporting part is connected with the mounting groove to provide stable support.
Need to check novelty before this filing date? Find Prior Art