A self-adjusting bellows-sealed circulating pump device
By introducing a self-adjusting bellows design and an electric telescopic rod into the circulating pump, the sealing problem of the bellows-sealed circulating pump under pressure changes is solved, achieving stable sealing under different pressures and preventing liquid leakage.
CN224282994UActive Publication Date: 2026-05-26SUZHOU SUMI SEALING TECH CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU SUMI SEALING TECH CO LTD
- Filing Date
- 2025-05-16
- Publication Date
- 2026-05-26
AI Technical Summary
Technical Problem
Bellows-sealed circulating pumps cannot automatically adjust their shape and compression when the system pressure changes, which makes it easy for the stationary ring and the rotating ring to separate, reducing the sealing performance and leading to liquid leakage.
Method used
The design employs a self-adjusting bellows system. By placing a bellows between the rotating and stationary rings and using an electric telescopic rod to drive the adjusting plate to compress or open the bellows, the system maintains a tight fit between the stationary and rotating rings, achieving self-adaptive sealing.
Benefits of technology
It maintains a stable sealing effect under different working pressures, prevents the static ring and the dynamic ring from separating, and avoids liquid leakage.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224282994U_ABST
Abstract
This utility model discloses a self-adjusting bellows-sealed circulating pump device, including a circulating pump body. The circulating pump body has a flow chamber inside, and an inlet and an outlet are respectively located at both ends. A motor is mounted on the top of the circulating pump body, and a pump shaft is mounted on the output end of the motor. A sealing chamber is located above the flow chamber. A first stationary ring and a second stationary ring are respectively installed at the top and bottom of the sealing chamber. A first rotating ring and a second rotating ring are respectively located on one side of the first and second stationary rings. A first bellows and a second bellows are respectively fitted onto the pump shaft on one side of the first and second rotating rings. This utility model enables the bellows to have an automatic adjustment function, allowing the pump to maintain a stable sealing effect under different operating pressures, preventing separation of the stationary and rotating rings, and preventing liquid leakage.
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