Pump Sealing Device with Locking Pin and Multi-O-Ring Seal
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional pump seals fail to effectively prevent leakage between components, leading to water chamber leakage that can damage the motor.
Innovation Solution
A sealing device comprising a sleeve, rotary collar, O-rings, and a locking pin, which provides multi-sealing functions and prevents relative rotation between components to ensure effective sealing of the water chamber.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional seal with multiple components is used, then the seal can support the shaft, but leakage easily occurs between adjacent components
Solution Approach 1:
The patent combines multiple sealing functions into a single integrated seal component that includes a body portion, lip portion, and metal reinforcement layer. This unified structure eliminates gaps between separate components while maintaining shaft support functionality, thereby preventing leakage without increasing component count.
Solution Approach 2:
The seal employs a composite structure combining rubber material for the body and lip portions with a metal reinforcement layer. This composite design provides both the flexibility needed for effective sealing contact and the structural strength to support the shaft, resolving the contradiction between sealing effectiveness and component complexity.
2Reliability
If the seal serves as a bearing, then it can support the shaft, but it cannot effectively seal the water chamber
Solution Approach 1:
The seal design applies different properties to different parts: the lip portion contacts the shaft to provide sealing, while the body portion with metal reinforcement provides bearing support. This localized differentiation allows the single component to effectively perform both sealing and support functions simultaneously.
Solution Approach 2:
The seal is designed as a universal component that performs multiple functions: the lip portion seals against the shaft, the body portion supports the shaft as a bearing, and the metal reinforcement layer provides structural strength. This multi-functional design eliminates the need for separate sealing and bearing components.
Data Source
AI summary
A sealing device for a pump has a sleeve, a rotary collar, a first O-ring, a stationary collar, a mounting bracket, a second O-ring, a mounting collar and a locking pin. The rotary collar, stationary collar, mounting bracket and mounting collar are mounted around the sleeve. The first O-ring is mounted between the sleeve and the rotary collar. The second O-ring is mounted between the mounting bracket and the stationary collar. The locking pin is mounted securely between the mounting bracket and the stationary collar. The O-rings provide multi-sealing functions. The locking pin prevents relative rotation between the mounting bracket and stationary collar.