Integrated Check Valve Assembly for Replaceable Pump Components
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Solution Overview
Problem
Existing pumping devices face challenges in component assembly and disassembly, leading to difficulties in reusing or replacing individual parts, and experience decreased pumping efficiency over time due to weakened adhesion between piston and cylinder members and malfunctioning check valves.
Innovation Solution
An integrated check valve design featuring a cylindrical valve body with a connected cylindrical check valve and S-shaped connecting parts, facilitating easy assembly and disassembly, and maintaining efficient operation by attaching to a hole for opening and closing functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the pumping device uses a traditional integrated structure where components are permanently coupled, then the device is compact and simple to manufacture, but the components cannot be easily disassembled or replaced, and the entire device must be exchanged when one component fails
Solution Approach 1:
The pumping device is divided into separable components: the piston member with its integrated check valve can be independently removed from the cylinder member. The piston member includes a piston body, piston rod, and integrated check valve assembly, while the cylinder member contains the cylinder body and check valve housing. This segmentation allows individual components to be replaced without discarding the entire pumping device, resolving the contradiction between manufacturing simplicity and component replaceability.
Solution Approach 2:
The check valve is integrated with the piston member through a unified structure where the check valve body is formed as part of the piston assembly. The connecting strap integrates the check valve disc with the piston rod, creating a combined component that maintains functional unity while enabling independent replacement of the piston assembly from the cylinder, thus achieving both structural simplicity and repairability.
2Duration of action of moving object
If the pumping device operates for a long period, then it provides sustained functionality, but the adhesion between piston member and cylinder member weakens and check valve function degrades, lowering pumping efficiency
Solution Approach 1:
The check valve function is extracted from the cylinder member and integrated with the piston member. The check valve disc is connected to the piston rod via a connecting strap, allowing the check valve to move with the piston. This extraction enables independent replacement of the piston assembly if the check valve degrades, maintaining reliability over extended operational periods while preserving sustained functionality.
Solution Approach 2:
The check valve is designed with dynamic connectivity through the connecting strap, which allows the check valve disc to move freely with piston motion while maintaining a firm connection. This dynamic structure ensures reliable opening and closing function throughout the operational duration, preventing degradation of pumping efficiency even after prolonged use.
3Reliability
If the check valve is firmly assembled to ensure proper function, then the opening and closing function is reliable, but the assembly complexity increases and defect rate increases due to assembly difficulties
Solution Approach 1:
The check valve is merged with the piston member into a single integrated assembly. The check valve body, disc, and connecting strap are unified with the piston rod, eliminating separate assembly steps for attaching the check valve to the piston. This merging maintains reliable opening and closing function while reducing assembly complexity and minimizing defects associated with multi-step assembly procedures.
Data Source
AI summary
The present invention relates to an integrated check valve comprising: a valve body (31) which is a cylindrical member having open upper and lower parts, and which is insertedly provided at the outer periphery of a center hole (21) of a cylinder (20) at which a pump body (10) is provided; and a cylindrical check valve (33) fitted and coupled to the upper surface of the valve body (31) by being connected thereto by means of a connecting strap (32) which is connected to the side surface of the valve body (31). The present invention attaches the valve body to a hole to be opened and closed, and assembles, on the valve body, the check valve connected to the valve body, thereby facilitating the assembly and disassembly of components and maintaining excellent pumping efficiency even when used for a long term.