Side-open left-right-door arbitrary-opening structure of refrigerator
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Solution Overview
Problem
In small kitchen or recreational vehicle spaces, traditional refrigerators with a single door opening direction are inconvenient for use, requiring users to stand at a fixed location to access contents.
Innovation Solution
A side-open left-right-door arbitrary-opening structure for refrigerators, featuring handle frame bars, hinge shafts, hinge shaft stoppers, springs, and transmission bodies, allowing the door to open from either side by sliding hinge shaft stoppers out of their necks, driven by handle frame bars, ensuring stable opening and closing with spring compression and positioning mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a single door opening direction is used, then the structure is simple, but the convenience of use deteriorates in small spaces
Solution Approach 1:
The door opening function is segmented into two independent sides, each with its own handle frame bar and hinge shaft stopper mechanism. This allows the door to be opened from either side independently, improving convenience in small spaces without requiring a completely complex overall structure.
Solution Approach 2:
The door structure is designed with universal functionality to open from both left and right sides. The symmetric arrangement of hinge shafts, stoppers, and handle frame bars on both sides enables the same door to serve multiple opening directions, enhancing adaptability to different usage scenarios.
2Ease of operation
If hinge shaft stoppers are made freely movable, then the door can open easily, but the door may fall off when both handles are pulled simultaneously
Solution Approach 1:
The spring mechanism applies a preliminary counteracting force to the hinge shaft stopper, creating a pre-compressed state that resists unintended movement. When one handle is pulled, the spring force prevents the stopper from moving freely, thereby preventing the door from falling off even when both handles are pulled simultaneously.
Solution Approach 2:
The hinge shaft stopper is designed with dynamic characteristics, allowing it to move horizontally when needed for door opening while being restrained by spring force during normal operation. This dynamic design enables controlled movement for opening while maintaining stability during closed state.
3Adaptability or versatility
If the door opens from both sides, then accessibility is improved, but the appearance may become incomplete on front faces
Solution Approach 1:
While the internal mechanism is symmetric to allow opening from both sides, the external appearance maintains asymmetry with handle frame bars positioned only on the left and right end faces. This asymmetric placement of operating elements preserves the complete appearance of front faces while enabling bidirectional opening functionality.
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 convenient access to refrigerator contents from either side, prevents door fall-off during simultaneous handle pull, maintains a complete appearance, and ensures horizontal displacement of hinge shaft stoppers for stable operation.
Implementation Method 1
one spring is arranged between two hinge shaft stoppers in each pair
Implementation Method 2
a first end of the spring is connected to one hinge shaft stopper, and a second end of the spring is connected to the other hinge shaft stopper
Data Source
AI summary
A side-open left-right-door arbitrary-opening structure of a refrigerator comprises four hinge shafts are fixedly connected at left and right sides of a refrigerator body in pairs respectively, left and right sides of upper and lower end faces of a refrigerator door are all provided with an opening neck, each hinge shaft is correspondingly placed in one opening neck, four hinge shaft stoppers are slidably arranged on the upper and lower end faces of the refrigerator door in pairs respectively, one spring is arranged between two hinge shaft stoppers in each pair, tail ends of the hinge shaft stoppers on the upper and lower end faces of the refrigerator door extend into the opening necks at the corresponding sides, and the hinge shafts at the corresponding sides are positioned in the opening necks.