Soft and hard rubber combined structure

By designing local concave and convex structures and through-hole convex column structures in soft and hard bonding structures, increasing the bonding area and friction force, the problem of unstable bonding of soft and hard bonding in the prior art is solved, and stronger bonding strength and stability are achieved.

CN222689518UActive Publication Date: 2025-03-28SHENZHEN YIHENG IND TECH CO LTD
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Patent Information

Application Number
CN202421101007.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-20
Publication Date
2025-03-28
Estimated Expiration
2034-05-20

AI Technical Summary

Technical Problem

In the prior art, products combining soft glue and hard glue are prone to cracking and peeling at the bonding position during tensile test, resulting in unstable and unreliable bonding structure.

Method used

By setting partial recesses at the bottom of both sides of the hardware and partial convex parts at the corresponding positions on both sides of the software to fit and increase the bonding area; at the same time, multiple through holes are set at the bottom of both sides of the hardware, and multiple convex columns are set at the corresponding positions of the software to fit and further increase friction.

Benefits of technology

The friction force of soft and hard rubber bonding is increased, the bonding strength is improved, the stability of the bonding position in the tensile test is improved, and cracking and peeling is avoided.

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Abstract

A soft and hard rubber combination structure comprises a hard rubber part and a soft rubber part attached to the periphery of the hard rubber part, local concave parts are arranged at the bottoms of the edges of the two sides of the hard rubber part, and local convex parts are arranged at the positions, corresponding to the local concave parts, of the tops of the edges of the two sides of the soft rubber part. The local concave part comprises a concave part inner wall face, a concave part side wall face and a concave part flat bottom face, the local convex part comprises a convex part end face, a convex part side face and a convex part horizontal face, the concave part inner wall face is attached to the convex part end face, the concave part side wall face is attached to the convex part side face, and the concave part flat bottom face is attached to the convex part horizontal face. A plurality of through holes are formed in the positions, corresponding to the local concave parts, of the bottoms of the two sides of the hard rubber piece, a plurality of convex columns are arranged at the positions, corresponding to the through holes, of the local convex parts, and the convex columns and the through holes are in one-to-one correspondence and embedded, so that the soft and hard rubber combined structure is large in bonding area, high in bonding strength, simple in structure and easy to popularize.
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