Waterproofness Testing Jig With Sliding Block Mechanism
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Solution Overview
Problem
Existing waterproofness testing apparatuses for half-finished products are costly and require high precision to prevent air leakage, increasing the number of parts and jig volume, and are not effective in identifying waterproofness issues before the manufacturing of finished products.
Innovation Solution
A waterproofness testing apparatus that uses a sliding block with a blocking member and a pushing member to move the block forward and backward without separate power, reducing the number of parts, manufacturing costs, and jig volume, while forming a chamber space to test the waterproofness of half-finished products by separating areas of holes and parts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If air injection method is used to block holes of half-finished product, then waterproofness test can be performed, but number of parts increases and manufacturing cost increases
Solution Approach 1:
The patent extracts the air injection system from the testing apparatus and replaces it with a simple sliding block mechanism. The blocking function is achieved through mechanical means (sliding block with sealing member) rather than pneumatic means, thereby removing the complex air injection parts while maintaining the waterproofness testing capability.
Solution Approach 2:
The sliding block with sealing member is designed as a simple, inexpensive mechanical component that can be easily manufactured and replaced if needed. This replaces the more expensive and complex air injection system, aligning with the principle of using simpler, cheaper components when possible.
2Reliability
If air injection method is used to block holes, then waterproofness test can be performed, but manufacturing cost of apparatus increases
Solution Approach 1:
The patent removes the air injection system (compressor, valves, hoses, control systems) and replaces it with a simple mechanical sliding block. This extraction of the pneumatic system dramatically reduces manufacturing costs while preserving the essential waterproofness testing function.
Solution Approach 2:
The sliding block mechanism uses simple mechanical components that are inexpensive to manufacture compared to the pneumatic system. The sealing member can be made from simple rubber or elastomeric materials, significantly reducing the overall apparatus cost.
3Reliability
If air injection method is used, then holes can be blocked, but high precision is required to prevent leakage of compressed air
Solution Approach 1:
The sliding block incorporates a sealing member (rubber or elastomeric) that provides effective sealing through simple compression when the block moves into position. This mechanical sealing approach is less sensitive to manufacturing tolerances compared to pneumatic sealing, reducing the precision requirements for assembly.
4Reliability
If air injection method is used, then waterproofness test can be performed, but volume of jig increases
Solution Approach 1:
The patent removes the bulky air injection system (compressor tank, piping, control valves) from the testing jig. The sliding block mechanism requires minimal space, allowing the overall jig volume to be significantly reduced while maintaining the waterproofness testing function.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The apparatus effectively reduces the sensitivity to air leakage, minimizes the volume of the jig, and lowers manufacturing costs by eliminating the need for separate power to move the sliding block, enabling accurate waterproofness testing of half-finished products before they are used in finished product manufacturing.
Implementation Method 1
a pushing member provided on a lower surface of the cover and pushing the sliding block to move the sliding block forward when the body and the cover are coupled to each other
Implementation Method 2
a sealing means including a sealing pad provided between the body and the cover and sealing inner and outer surfaces of the half-finished product such that areas of the holes and the parts of the half-finished product are separated from each other, the sealing means being configured to form a chamber space
Implementation Method 3
high-pressure air is injected into the chamber space, thereby performing a waterproofness test on the half-finished product
Data Source
AI summary
Provided is an apparatus for testing waterproofness of a half-finished product, wherein the apparatus is configured to form a chamber space such that areas of holes and parts of the half-finished product are separated from each other, and high-pressure air is injected into the chamber space, thereby performing a waterproofness test. In addition, a sliding block is provided such that a hole blocking means blocking the holes of the half-finished product is moved forward and backward through engagement and disengagement of a body and a cover without requiring a separate power, and the apparatus includes the body, the cover, a sealing means, and a hole blocking means including a sliding block moved in a lateral direction of the half-finished product, a blocking member blocking a side hole of the holes, and a pushing member pushing the sliding block to be moved forward when the body and the cover are combined.