Telescoping Support Stand Trigger Lock With Airflow Venting
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Solution Overview
Problem
Existing telescoping support stands with internal locking mechanisms face issues such as accidental trigger activation, restricted airflow leading to resistance in height adjustments, and the need for two hands to overcome vacuum and dampening effects.
Innovation Solution
A telescoping support stand design featuring a handle with a trigger that actuates a release assembly within the connection housing, allowing the inner and outer tubes to move longitudinally relative to each other, while also incorporating air exchange apertures to facilitate airflow and reduce resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If an internal locking mechanism is used to secure the inner tube to the outer tube, then the stand can be adjusted quickly with one hand, but the trigger may be accidentally activated during use
Solution Approach 1:
A safety lever is introduced as an intermediary component between the user and the trigger mechanism. The safety lever must be deliberately moved to the 'unlock' position before the trigger becomes operational, preventing accidental activation while preserving quick-adjustment capability when intentionally desired
Solution Approach 2:
The trigger mechanism is designed to be dynamically controlled through the safety lever position. When the safety lever is in the 'lock' position, the trigger is mechanically disabled; when moved to 'unlock' position, the trigger becomes active. This dynamic control allows the system to switch between safe and operational states
2Strength
If the internal lock is sized to fit snugly within the inner tube and press securely against the outer tube, then the locking mechanism is secure, but the flow of air between the inner and outer tubes is restricted
Solution Approach 1:
The internal lock component is designed with porous or perforated structures that allow air to pass through while maintaining mechanical locking function. The porous design enables airflow channels within the lock body, preventing vacuum and dampening effects during tube extension and retraction
Solution Approach 2:
The internal lock is segmented into multiple sections with integrated air passages. The locking surface is divided into functional zones that maintain secure engagement while incorporating channels for air flow, separating the locking function from the airflow restriction problem
3Object-affected harmful factors
If the stand is sealed tightly to keep water and debris out, then protection against elements is improved, but air cannot freely flow in and out of the stand
Solution Approach 1:
The seal system incorporates porous components or selective permeability features that allow air molecules to pass through while blocking larger particles like water droplets and debris. This enables the seal to simultaneously provide environmental protection and maintain airflow channels
Solution Approach 2:
The sealing system uses composite material structures combining hydrophobic/oleophobic properties with breathable characteristics. The composite seal allows air flow while preventing water and debris penetration, resolving the contradiction between protection and airflow
4Strength
If the user holds the inner tube in position while fastening the lock, then the locking can be secure, but two hands are required for adjustment
Solution Approach 1:
The safety lever and trigger mechanism are merged into a coordinated single-hand operation system. The safety lever provides structural support and positioning while the trigger delivers the locking action, combining functions that would otherwise require separate hand operations into one integrated mechanism
Data Source
AI summary
A telescoping support stand comprising handle mounted below a connection housing and a plurality of extendable legs pivotably engaged near the top of the connection housing.