Vacuum Blender Lid Assembly with Visual Indicator and Pressure Relief
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Solution Overview
Problem
Existing vacuum blenders lack intuitive methods to determine if vacuum pumping is complete and make it inconvenient to perform pressure relief operations after food processing.
Innovation Solution
A vacuum blender design featuring a deformable vacuum state indicator and a pressure relief device with a lever system, allowing users to visually confirm vacuum completion and facilitate pressure balance before opening the cup cover.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a vacuum pumping device is used to create vacuum in the cup body, then food materials can be kept fresh and oxidation prevented, but it becomes difficult to intuitively observe whether vacuum pumping has been finished
Solution Approach 1:
The patent employs a vacuum indicator that changes color or displays different visual states to indicate vacuum completion. The indicator is positioned on the cup cover assembly and provides intuitive visual feedback to users, solving the problem of observing vacuum status without adding complex measurement devices.
2Reliability
If the cup cover is sealed tightly to maintain vacuum, then vacuum pumping effectiveness is improved, but pressure relief operation becomes inconvenient after stirring is completed
Solution Approach 1:
The patent incorporates an automatic pressure relief mechanism that activates when the cup cover is opened. The mechanism automatically equalizes pressure between the cup interior and exterior, eliminating the need for manual pressure relief operations and improving ease of use while maintaining reliable sealing during vacuum processing.
3Productivity
If the cup cover is opened directly after vacuum pumping, then operation speed is improved, but dangerous pressure difference may cause injury or damage
Solution Approach 1:
The patent implements a pressure equalization mechanism that automatically activates before the cup cover can be fully opened. This preliminary action equalizes the pressure difference between cup interior and exterior, preventing sudden pressure equalization that could cause injury or damage, while still allowing quick operation.
4Difficulty of detecting and measuring
If a vacuum indicator is added to show vacuum status, then observation of vacuum completion is improved, but device complexity increases
Solution Approach 1:
The patent extracts the vacuum indication function from complex measurement systems and implements it through a simple visual indicator integrated into the cup cover assembly. This approach provides clear vacuum status information while minimizing added complexity by using a straightforward indication mechanism rather than sophisticated sensors or displays.
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
Enables users to clearly observe vacuum completion and conveniently perform pressure relief, ensuring safe operation by preventing accidental opening due to pressure differences.
Implementation Method 1
the vacuum state indicator includes a deformable part so that the vacuum state indicator is compressively deformable toward an inner cavity of the vacuum stirring cup under an atmospheric pressure
Implementation Method 2
the pressure relief device further includes an elastic piece for automatically resetting the pressure relief lever, and the elastic piece is mounted on at least one end of the pressure relief lever
Data Source
AI summary
The present disclosure provides a vacuum food processor, comprising: a base, a vacuum blender jar, and a lid assembly. A vacuum air extraction device is disposed inside the base; and the lid assembly comprises a lid body, a main sealing ring, a vacuum status indicator, a first vacuum air extraction channel, a second vacuum air extraction channel, and a pressure relief device, wherein the vacuum status indicator comprises a deformable deforming portion, such that under the action of atmospheric pressure, the vacuum status indicator is compressively deformed toward an inner cavity of the vacuum blender jar.