Automatically Resettable Passive Swing Bolt Lock Mechanism
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Solution Overview
Problem
Conventional passive locks are inconvenient to use, large in size, high in power consumption, require complex structures and high motor performance, and need motor power for resetting, making them costly and complex.
Innovation Solution
An automatically resettable passive swing bolt lock with a simplified structure and reduced power consumption, comprising a lock body with a rotary compartment, reset spring, pin spring, motor, cam, reset pusher block, and key components that allow for automatic resetting without continuous motor power, using a key to insert and align components for locking and unlocking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If conventional passive locks are used, then locking function is provided, but the structure is complex and size is large
Solution Approach 1:
The lock body is divided into separate functional modules: rotary compartment for motor and cam mechanism, lock cover for pin assembly, and lock housing for overall structure. This segmentation allows each module to be optimized independently, reducing overall complexity while maintaining reliability.
Solution Approach 2:
The cam is nested within the rotary compartment, the pin is nested within the lock cover, and the steel ball is nested within the key hole cavity. This nested arrangement reduces the overall size and simplifies the structure by eliminating the need for separate housing for each component.
2Use of energy by moving object
If conventional passive locks are used, then locking function is provided, but power consumption is high and motor performance requirements are high
Solution Approach 1:
The motor operates in periodic cycles: rotating the cam during locking, then stopping to allow the reset spring to automatically reset the cam during unlocking. This periodic operation reduces average power consumption and motor performance requirements compared to continuous operation.
Solution Approach 2:
The reset spring automatically resets the cam mechanism after the motor rotates it during locking. This self-service feature eliminates the need for motor-powered resetting, significantly reducing power consumption and motor performance requirements.
3Ease of operation
If conventional passive locks are used, then locking function is provided, but resetting requires motor power
Solution Approach 1:
The reset spring is pre-loaded and automatically resets the cam mechanism after the motor rotates it during locking. This passive elastic energy storage and release mechanism eliminates the need for motor-powered resetting, making the system easier to operate with lower energy consumption.
Solution Approach 2:
The reset spring is pre-loaded during assembly to store elastic energy. This preliminary action prepares the system for automatic resetting without requiring additional power during the resetting phase, improving ease of operation.
4Ease of operation
If conventional passive locks are used, then locking function is provided, but the lock is inconvenient to use
Solution Approach 1:
The traditional complex multi-component locking mechanism is replaced with a simplified motor-cam-pin system. The motor rotates the cam, which directly actuates the pin through controlled contact, eliminating the need for complex linkages and reducing operational complexity.
Solution Approach 2:
The cam profile is specifically designed with varying radii to control the pin's movement parameters. By changing the cam rotation angle and speed, the system achieves different locking states, simplifying the operation to a single rotational action.
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 solution results in a compact, low-power, and cost-effective lock with a simple structure that automatically resets, enhancing user convenience and reducing operational costs while maintaining safety and functionality.
Implementation Method 1
a reset spring (14), a pin spring (15)... The reset spring is disposed between the reset pusher block and a wall of the rotary compartment internal cavity
Implementation Method 2
The pin spring is sleeved on the pin. Two ends of the pin spring lean against the lock cover and the cam, respectively
Implementation Method 3
a motor (18), a cam (19)... The cam is fixedly sleeved on an output shaft of the motor
Data Source
AI summary
Disclosed is an automatically resettable passive swing bolt lock consisting of a lock body and a key. The key can be inserted into a locking hole of the lock body. In the present invention, the lock body comprises a lock housing, a rotary compartment, a lock cover, a reset spring, a pin spring, a pin, a lock body PCB, a motor, a cam, a reset pusher block, and two locking contacts. In the lock body, the rotary compartment is installed inside the lock housing. The lock body PCB, the motor and the cam are installed in an internal cavity of the rotary compartment formed by the lock cover and the rotary compartment. The invention has a small size and a simple structure, and the motor thereof has low power consumption.