Rubber piston with good wear resistance

By introducing a wear-resistant mechanism and steel ring structure into the cylinder piston, the problems of deformation and breakage of the cylinder piston under media impact and axial compression are solved, the compressive and tensile strength is improved, the sealing performance is ensured, and the normal use of the wear-resistant rubber piston is realized.

CN224453646UActive Publication Date: 2026-07-03XINGTAI TONGYI MASCH EQUIP CO LTD
0 Cites 0 Cited by

Patent Information

Application Number
CN202521927036.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-08
Publication Date
2026-07-03
Estimated Expiration
2035-09-08

AI Technical Summary

Technical Problem

The existing hydraulic cylinder pistons have poor wear resistance and are prone to deformation and breakage under the impact of the medium or axial compression, resulting in a decrease in sealing performance and affecting the normal use of the hydraulic cylinder.

Method used

The piston ring employs a wear-resistant mechanism, including a buffer system consisting of first and second elastic rings, a buffer bladder, and a spring within the first piston ring, combined with first and second anti-compression rings of a steel ring structure to enhance compressive and tensile strength, and an anti-corrosion coating is applied to the piston ring surface.

Benefits of technology

It improves the pressure resistance and wear resistance of the rubber piston, avoids deformation and damage, enhances the sealing effect, and ensures the normal operation of the hydraulic cylinder.

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

Abstract

The utility model discloses a rubber piston with good wear resistance, which relates to the technical field of oil cylinder pistons and comprises a first piston ring, a second piston ring fixedly sleeved on the outer side of the first piston ring, an annular cavity arranged inside the first piston ring, and a wear-resistant mechanism arranged at the annular cavity of the first piston ring. The wear-resisting mechanism comprises a first elastic ring and a second elastic ring, a plurality of springs are arranged between the first elastic ring and the second elastic ring, a plurality of buffering air bags are arranged between the first elastic ring and the second elastic ring, and the buffering air bags and the springs are arranged at intervals. A first piston ring extrudes a first elastic ring and a second elastic ring to buffer and absorb external force, the first elastic ring and the second elastic ring are connected into a whole through a plurality of springs, the effect of resisting external force is improved, and pressure borne by the first elastic ring and the second elastic ring is absorbed through a plurality of buffer air bags; and therefore, the effect of buffering and absorbing external force is improved, and the overall compression resistance and wear resistance of the rubber piston are improved.
Need to check novelty before this filing date? Find Prior Art