Mechanical structure for sealing a petroleum pump
By introducing a connecting disc, sealing disc, and air bladder structure into the oil pump, and utilizing the mechanical connection of the snap-fit and slot and the inflation of the air bladder to achieve self-adaptive sealing, the problem of poor sealing in the oil pump is solved, and the effect of preventing leakage is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- OSERO SEALING TECH SHANGHAI
- Filing Date
- 2025-08-20
- Publication Date
- 2026-06-26
AI Technical Summary
Existing oil pumps are prone to loosening or poor sealing after mechanical connection, leading to leakage problems during transportation.
It adopts a pump body, connecting plate, sealing plate and air bag structure, and achieves self-adaptive sealing by mechanical connection of buckle and slot, combined with air bag inflation to squeeze and fit the second sealing ring with the first sealing ring.
It effectively prevents the sealing disc from loosening and slipping, achieves air-filled sealing to prevent leakage, and improves the sealing effect of the oil pump.
Smart Images

Figure CN224413847U_ABST