Rotating Locking Pin Housing Assembly
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Solution Overview
Problem
Existing signaling devices require complex and time-consuming installation methods due to the use of multiple screws or multi-part connecting mechanisms, increasing installation time and complexity.
Innovation Solution
The use of one-piece locking pins with a rotating mechanism that can be inserted and locked into the housing base body, eliminating the need for additional components like screws or sleeves, and allowing for a form-fitting connection with a limited rotational angle, enabling quick and simple assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If screws are used to connect the housing top to the housing base, then a secure connection is achieved, but the installation time increases due to tightening over a large number of threads
Solution Approach 1:
The connection process is segmented into two distinct phases: insertion of the locking pin through the housing top and base, followed by a separate rotation action to engage the locking lugs. This segmentation allows the insertion phase to be quick and the locking phase to be secure, resolving the contradiction between fast installation and reliable connection.
Solution Approach 2:
The locking pin transitions from a static insertion component to a dynamic locking mechanism through rotation. The rotation action transforms the pin's function from mere connection to active locking, enabling both quick installation and secure connection by changing the component's state during the assembly process.
2Reliability
If multiple connecting components like screws, sleeves, and locking mechanisms are used, then a secure connection is achieved, but the device complexity increases
Solution Approach 1:
Multiple functions previously requiring separate components (connection, locking, and positioning) are merged into a single locking pin component. The pin integrates the shaft for insertion, locking lugs for securing, and head for rotation control, eliminating the need for separate screws, sleeves, and locking mechanisms while maintaining connection security.
Solution Approach 2:
The locking pin serves multiple functions simultaneously: it acts as a connection element, a locking mechanism, and a positioning device. The shaft provides structural connection, the locking lugs provide security, and the head enables controlled rotation, making the single component universal and eliminating the need for multiple specialized parts.
3Loss of time
If a rotating locking mechanism is used instead of screws, then installation time is reduced, but the ease of operation decreases due to the need for rotation
Solution Approach 1:
The locking pin's head is designed to be gripped and rotated directly by the installer's hand, eliminating the need for external tools. This self-service approach maintains ease of operation while enabling the faster rotating locking mechanism, as the human hand naturally provides sufficient torque for the rotation action.
Solution Approach 2:
The rotation action transforms the static insertion process into a dynamic locking sequence. The limited angular rotation required to engage the locking lugs provides tactile feedback and visual confirmation of proper engagement, making the operation intuitive and simple despite the rotational motion.
Data Source
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AI summary
The device (100) has a housing upper part (11) connected with a housing base body (10) by connectors. A receiving area is formed by the upper part and the base body, where an electrical assembly (13) is accommodated in the receiving area. Each connector includes multiple locking pins (12) held at the upper part. The pins include a shaft (15) inserted into an opening (18) of the base body. A locking lug (16) is arranged at the shaft. The pins are locked with the lug in the base body by rotation around a partial angle of a full circle.