Locking Handle Mechanism for Terminal Block Plug
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional terminal blocks lack sufficient means to maintain the connection between the electrical connection plug and socket, leading to detachment under external forces greater than the tight fit and clamping force.
Innovation Solution
A locking-type electrical connection plug with a housing, guide groove, and locking handle that includes a pressing part, latch body, and elastic component, allowing the plug to lock onto the socket and unlock by pressing the pressing part, utilizing the elastic force to enhance the resistance to unplugging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional terminal blocks rely only on tight fit and clamping force to maintain connection, then the structure remains simple, but the connection becomes unstable under external forces
Solution Approach 1:
The patent applies the dynamics principle by introducing a movable locking handle that can transition between locked and unlocked states. The locking handle includes a latch body that engages with the locking part of the socket, creating a dynamic locking mechanism that actively maintains connection stability under external forces while allowing easy detachment when needed
Solution Approach 2:
The patent applies segmentation by dividing the connection maintenance function into multiple components: the locking handle, latch body, locking part, and elastic component. This segmentation allows each component to perform its specific function, with the elastic component providing continuous locking force and the latch body providing the actual mechanical engagement, thereby improving reliability without requiring a completely complex integrated structure
2Reliability
If a locking mechanism is added to improve resistance to unplugging, then connection stability improves, but the ease of operation decreases
Solution Approach 1:
The patent applies the self-service principle through the elastic component (spring) that automatically maintains locking force on the locking handle. The elastic component continuously pushes the locking handle to engage the latch body with the locking part, providing self-maintaining locking action without requiring additional user effort. When the pressing part is released, the elastic force automatically returns the locking handle to its locked position
Solution Approach 2:
The locking mechanism uses dynamic movement of the locking handle that swings between locked and unlocked positions. The handle includes a pressing part that, when pressed, causes the locking handle to swing and disengage the latch body from the locking part. This dynamic design allows easy one-handed operation for detachment while maintaining secure locking during normal use
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 provides improved resistance to unplugging, ensuring a secure and stable connection by storing elastic energy during unlocking, allowing smooth detachment when desired.
Implementation Method 1
an elastic component that exerts an elastic force on the housing, wherein upon pressing the pressing part, the first shaft and the second shaft slide within the first segment and the second segment, respectively, the locking handle swings in a direction relative to the housing, the latch body moves with the locking handle along the direction to be elevated relative to the housing, and the elastic component stores elastic energy through the locking handle swinging along the unlocking direction
Data Source
AI summary
A terminal block device and its locking-type electrical connection plug are provided. The terminal block device includes the locking-type electrical connection plug and an electrical connection socket connected with each other. The locking-type electrical connection plug includes a housing and a locking handle. The housing includes a guide groove divided into two segments. The locking handle includes a pressing part, a latch body, and an operating section. The latch body snaps onto the electrical connection socket. The operating section includes two shafts and an elastic component. The two shafts are guided by the two segments. The elastic component exerts an elastic force on the housing. When the pressing part is pressed, the locking handle is guided by the two shafts to swing, causing the latch body to lift and disengage from the electrical connection socket, and making the elastic component store elastic energy.