Pump Casing with Embedded Metal Members Preventing Distortion
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Solution Overview
Problem
Conventional pump casings made entirely of metal are difficult to process into desired shapes and have high manufacturing costs, while casings made entirely of plastic are prone to distortion when combined with piping.
Innovation Solution
A pump casing design that incorporates a metal member within a plastic body, where the metal members surround the liner and are embedded in the plastic body, preventing distortion and enhancing strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the casing is made entirely of metal, then strength and resistance to distortion are improved, but manufacturing cost and processing difficulty increase
Solution Approach 1:
The patent applies composite materials by combining a plastic body with embedded metal members. The plastic body provides ease of manufacture and cost-effectiveness, while the metal members (such as ribs or reinforcement structures) provide the necessary strength and distortion resistance. This composite structure resolves the contradiction by integrating the advantages of both materials.
Solution Approach 2:
The patent applies local quality by strategically placing metal members only in specific locations within the plastic body where strength is needed, rather than making the entire casing metal. The metal members are positioned to prevent distortion at critical areas while maintaining overall cost-effectiveness and ease of manufacture for the plastic portions.
2Ease of manufacture
If the casing is made entirely of plastic, then manufacturing cost and processing ease are improved, but resistance to distortion deteriorates
Solution Approach 1:
The patent uses composite materials with a plastic body as the base material, which provides ease of manufacture and cost-effectiveness. Metal members are embedded within the plastic to provide the necessary rigidity and distortion resistance, creating a composite structure that combines the manufacturing advantages of plastic with the structural advantages of metal.
Solution Approach 2:
The patent implements local quality by placing metal reinforcement members only in specific locations within the plastic body where distortion resistance is critical. This allows the majority of the casing to remain as easy-to-manufacture plastic while providing targeted strength where needed.
3Stability of the object's composition
If the casing is made entirely of metal, then resistance to distortion is improved, but manufacturing cost increases
Solution Approach 1:
The patent applies composite materials by using a plastic body as the primary structure, which is more cost-effective to manufacture than metal. Metal members are embedded within the plastic body only where distortion resistance is required, providing the necessary stability at a lower overall manufacturing cost compared to an all-metal construction.
4Strength
If metal members are added to the plastic body, then strength and distortion resistance are improved, but device complexity increases
Solution Approach 1:
The patent applies the nesting principle by embedding metal members within the plastic body. The metal members are integrated into the plastic structure during the molding process, with the plastic material surrounding and encapsulating the metal components. This nested arrangement provides structural reinforcement while maintaining a unified, relatively simple overall structure that does not require complex assembly procedures.
Data Source
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AI summary
Various pumps capable of preventing distortion are disclosed. A casing of the pump comprises a metal member configured to have at least two sub metal members and a body. Here, the sub metal members are included in the body, and the body is formed of plastic.