Cavity Vacuum Sealer with Segmented Dual-Head Pump
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Solution Overview
Problem
Prior cavity-type vacuum sealing machines are unsuitable for household use due to their complex structure, high cost, large volume, and inability to package liquid-containing products effectively, while small household machines lack the capability to handle liquids and have inefficient pumping systems.
Innovation Solution
A cavity-type vacuum sealing machine with a simple structure, small volume, and low cost, featuring a dual-head motor-driven vacuum pump set with four air pumps, one-way valves, and a tray with an oblique bottom to manage liquids, allowing for efficient vacuuming and sealing of packaging bags.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a large vacuum pump is used in cavity-type vacuum sealing machines, then pumping speed and pumping pressure are improved, but device volume and cost increase
Solution Approach 1:
The vacuum pump is divided into multiple independent air pumps (first air pump and second air pump) that can operate separately or together. Each air pump has its own piston, cylinder, and valve mechanism, allowing the system to achieve high pumping speed through parallel operation while maintaining a compact overall structure suitable for household use.
2Productivity
If a dual-pump structure is used, then pumping speed is improved, but device complexity increases
Solution Approach 1:
The first air pump and second air pump share common components including the driver mechanism, valve assembly, and integration with the cavity-type vacuum sealing machine structure. This merging approach enables the system to achieve enhanced pumping speed through dual-pump operation while minimizing the increase in overall device complexity.
3Device complexity
If a direct-current motor with one suction port and one exhaust port is used, then device simplicity is maintained, but pumping pressure and pumping speed are reduced
Solution Approach 1:
The motor-driven pumping system is segmented into multiple air pumps (first air pump and second air pump), each with its own suction port and exhaust port. This segmentation allows the system to achieve high pumping pressure and speed through parallel operation of multiple pumps while maintaining the simplicity of individual pump units driven by the same direct-current motor.
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 machine achieves higher pumping efficiency, increased vacuum pressure, and the ability to package liquid-containing products, making it suitable for households and small workshops with reduced volume and cost, ensuring effective sealing and extended shelf life of food.
Implementation Method 1
The vacuum pump set is a vacuum pump, comprising a housing, a driver and air pumps driven by the driver... four air pumps are arranged... one-way valves are arranged between the suction ports and the air pumps and between the exhaust ports and the air pumps
Implementation Method 2
the cavity is internally provided with a hot-pressing bar and a heating and sealing component for sealing the packaging bags
Data Source
AI summary
The utility model discloses a cavity-type vacuum sealing machine, comprising a machine body and a cover which covers the machine body. The machine body is internally provided with a tray; an airtight cavity for holding packaging bags is formed between the tray and the cover; the cavity is internally provided with a hot-pressing bar and a heating and sealing component for sealing the packaging bags; the machine body is internally provided with a vacuum pump set for vacuumization; and the suction ports of the vacuum pump set communicate with the airtight cavity for holding the packaging bags via tubes. The cavity-type vacuum machine disclosed by the utility model has the advantages of smaller volume and small occupied space.