Pressure Lever Lock with Internal Trigger and Sealing
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Solution Overview
Problem
Conventional pressure lever locks are unable to be opened from the inside and lack a seal, allowing liquid ingress, which can damage the lock and its components.
Innovation Solution
The pressure lever lock design includes an internal facing portion and external facing portion with a lever assembly, a housing cover, and a trigger button accessible from the inside, along with a silicon sleeve for sealing, enabling the lock to be opened from two sides and preventing liquid entry.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the lock is designed with a conventional single-sided operation mechanism, then the structure is simple, but the lock cannot be opened from the inside
Solution Approach 1:
The lock is divided into two distinct operational systems: an external key-operated barrel mechanism and an internal trigger button mechanism. This segmentation allows independent operation from either side while maintaining separate functional pathways, resolving the contradiction between versatility and complexity.
Solution Approach 2:
The lock assembly is designed to serve multiple functions: it can be operated externally via key rotation and internally via trigger button depression. The shared lever assembly and catch mechanism provide universal locking functionality regardless of the activation method, achieving multi-functionality without proportionally increasing complexity.
2Reliability
If the lock is designed without a seal, then the structure is simple, but liquid can enter the housing and damage components
Solution Approach 1:
A flexible sealing element is introduced between the button cap and housing cover to create a watertight barrier. This thin film approach provides effective liquid protection while adding minimal structural complexity, as the seal integrates into the existing button assembly rather than requiring a separate sealing system.
3Reliability
If the button cap and housing cover are sealed with a silicon sleeve, then liquid ingress is prevented, but the button cap must extend into a groove engaging the sleeve
Solution Approach 1:
The button cap is designed to nest within the housing cover, with the cap extending into a groove that engages the silicon sealing element. This nested configuration integrates the sealing mechanism within the existing button assembly structure, providing watertight protection while minimizing additional complexity through space-efficient design.
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 improved lock can be opened from both inside and outside, providing a watertight seal that prevents damage from liquid ingress, enhancing usability and reliability in various weather conditions.
Implementation Method 1
A button cap on the external facing portion of the lock extends into a first groove of the housing cover and engages a silicon sleeve sealing the button cap and the housing cover
Implementation Method 2
A housing includes a trigger button and an inner seal to engage a second groove sealing the housing and the housing cover
Implementation Method 3
a spring biased lever 12 pivotably mounted on a housing 14
Data Source
AI summary
A lock includes an internal facing portion and an external facing portion, a lever assembly, a housing cover on the external facing portion of the lock including a lock assembly having a locked position and a unlocked position and a button cap. The button cap extends into a first groove of the housing cover and engages a silicon sleeve sealing the button cap and the housing cover. A housing includes a trigger button and an inner seal to engage a second groove sealing the housing and the housing cover, and an anchoring frame on the internal facing portion of the lock coupled to the housing. The trigger button extends through the anchoring frame, and the trigger button is accessible from the internal facing portion of the lock to releasably actuate the lock assembly.