Reusable fixed tissue holder
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Solution Overview
Problem
Existing tissue holders face challenges with inefficient and labor-intensive fixation and removal due to the need for high squeezing forces and varying sizes of sucking discs, which limits their usability and reusability.
Innovation Solution
A reusable tissue holder design featuring a bar frame with a sucking disc and a button structure that generates negative pressure through a pipe barrel and linkage mechanism, allowing for easy and secure attachment and detachment from smooth surfaces without excessive force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a sucking disc is used to fix the tissue holder on a wall surface, then the tissue holder can be mounted on different locations and reused, but vigorous squeezing is required to form negative pressure and the fixation process is labor-intensive
Solution Approach 1:
The patent employs a pneumatic mechanism where a piston moves within a cylinder to compress air into the cavity between the suction cup and the wall surface. This pneumatic approach replaces manual vigorous squeezing with a controlled air pressure system, reducing labor effort while achieving the necessary negative pressure for secure fixation
Solution Approach 2:
The tissue holder system performs self-fixation through the pneumatic mechanism. Once the piston is actuated, the compressed air automatically creates the negative pressure needed for mounting, eliminating the need for continuous manual intervention or repeated squeezing operations
2Reliability
If a large sucking disc is used to increase adsorption capacity, then the tissue holder can be effectively borne, but the squeezing effort and complexity increase
Solution Approach 1:
The pneumatic system generates concentrated air pressure within the cavity through the piston-cylinder mechanism. This allows for effective adsorption capacity with a compact sucking disc design, as the force is concentrated through pressure rather than distributed through a large area requiring manual compression
Solution Approach 2:
The patent changes the parameter of pressure generation from mechanical compression (squeezing) to pneumatic compression (air pressure). This allows the same adsorption capacity to be achieved with a smaller, less complex sucking disc structure, as the pneumatic system can generate high pressure in a compact volume
3Stability of the object's composition
If the tissue holder is firmly fixed by the sucking disc, then stable attachment is achieved, but it becomes very difficult to remove and reposition
Solution Approach 1:
The fixation system is made dynamic and reversible through the pneumatic mechanism. The piston can be retracted to release the negative pressure, allowing easy removal and repositioning. This dynamic control of the air pressure enables both stable attachment during use and easy detachment when relocation is needed
Solution Approach 2:
The fixation and release process can be performed periodically through the piston mechanism. The system transitions between fixed and released states by periodic actuation of the piston, enabling stable attachment during the fixed phase and easy removal during the release phase
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 design enables rapid and secure attachment to surfaces with reduced effort, improved adsorption capacity, and easy repositioning, addressing the limitations of previous solutions by minimizing the number of presses required for fixation and ensuring effective vacuum formation.
Implementation Method 1
a structure for exhausting a gas between the sucking disc body and a smooth surface when the sucking disc body is adsorbed on the smooth surface
Implementation Method 2
by pressing the second bar frame, the pipe barrel generates a negative pressure between the sucking disc body and the smooth surface by virtue of the second channel
Data Source
AI summary
The present invention relates to the technical field of furniture items, in particular to a reusable fixed tissue holder including: a bar frame including a first bar frame and a second bar frame sleeving the first bar frame; a base fixed to one end of the first bar frame; a disc seat mounted in the base; a sucking disc body mounted on the disc seat, wherein a first channel is disposed on the disc seat, and a second channel connected with the channel is disposed on the sucking disc body; and a button structure mounted on the base and used for connecting the first channel and the second channel to the outer atmosphere. According to the present invention, a cavity is exhausted by using a pipe barrel to form a negative pressure, the tissue holder can be adsorbed on the wall surface without applying a great pressing force.