Lamp Snap Spring Guide Structure for Smooth Disassembly
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Solution Overview
Problem
The snap spring of existing lamps interferes with the mounting hole during maintenance and disassembly, making it difficult or impossible to disassemble the lamp tube.
Innovation Solution
A snap spring design featuring a rotating shaft, torsion spring, and a plate buckle with a guide surface inclined from one side surface to another, allowing the plate buckle to smoothly pass through the mounting hole during disassembly by transitioning from a guide surface to a second side surface, avoiding structural interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the snap spring protrudes from the side wall of the housing for easy installation, then the installation convenience is improved, but the snap spring interferes with the mounting hole during maintenance and disassembly, making it difficult or impossible to disassemble
Solution Approach 1:
The snap spring is segmented into multiple functional parts: a rotating shaft connected to the housing, a plate buckle with body portion and connecting portion, and a torsion spring. The plate buckle can rotate relative to the rotating shaft, allowing it to transition between extended and retracted positions. This segmentation enables the snap spring to protrude during installation for ease of operation, then retract during maintenance to avoid interference with the mounting hole.
Solution Approach 2:
The snap spring transitions from a static structure to a dynamic one through the introduction of the torsion spring and rotating connection between the plate buckle and rotating shaft. The plate buckle can dynamically adjust its position - extending outward during installation and rotating inward during disassembly. This dynamic capability resolves the contradiction by allowing the snap spring to serve different functions at different stages of the lamp's lifecycle.
2Stability of the object's composition
If the snap spring is designed to clamp firmly between the housing and mounting foundation, then the mounting stability is improved, but the snap spring becomes stuck on the upper surface of the ceiling during disassembly
Solution Approach 1:
The plate buckle is designed with a guide surface that preliminarily guides the mounting foundation during installation, ensuring proper alignment and firm clamping. During disassembly, the guide surface preliminarily contacts with the hole wall to initiate the retraction motion, allowing the plate buckle to smoothly transition from the clamped position back to the retracted position without getting stuck on the ceiling surface.
Solution Approach 2:
The guide surface acts as an intermediary element between the plate buckle and the mounting foundation. During disassembly, the guide surface mediates the interaction by contacting the hole wall first, facilitating the controlled retraction of the plate buckle. This intermediary function allows the snap spring to maintain firm clamping during normal operation while enabling smooth disassembly without the plate buckle getting stuck.
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
Enables convenient disassembly of the lamp by allowing the snap spring to pass through smaller mounting holes without interference, ensuring a stable mounting structure.
Implementation Method 1
a torsion spring sleeved on the rotating shaft... the plate buckle is elastically connected with the housing through the torsion spring
Data Source
Figure 1~2
Figure 3
Figure 4
AI summary
A snap spring (100) and a lamp. The snap spring (100) comprises: a rotating shaft (11), which is adapted to connect to a housing (200); a torsion spring (12), which is sleeved on the rotating shaft (11); and a plate buckle (13), which comprises a body portion (131) and a connecting portion (132) that are connected to each other, wherein the connecting portion (132) is rotationally connected to the rotating shaft (11), the body portion (131) is provided with a first side surface (1301) and a second side surface (1302) which are opposite each other, one end of the second side surface (1302) close to the rotating shaft (11) is connected to a guide surface (1303), and the guide surface (1303) inclines from the second side surface (1302) to the side where the first side surface (1301) is located; and when the snap spring (100) and the housing (200) are assembled, one elastic end (121) of the torsion spring (12) abuts against the first side surface (1301), and the plate buckle (13) is elastically connected to the housing (200) by means of the torsion spring (12). The problem of structural interference between the snap spring (100) and a mounting base (300) when disassembling a lamp can be solved, such that smooth disassembly of the lamp is achieved.