Symmetric Dustproof Strip Assembly in Linear Transmission Modules
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Solution Overview
Problem
Existing linear transmission modules face challenges in assembly precision due to asymmetric dustproof strips, leading to manufacturing difficulties and high mold repair complexity, as well as inconsistent assembly directions requiring careful orientation.
Innovation Solution
A linear transmission module design featuring symmetrical dustproof members with contact portions that can be assembled in either direction, integrated with end caps and slider body grooves, allowing for flexible assembly and enhanced dustproofing without orientation constraints.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an asymmetric cross-sectional shape dustproof strip is used, then the dustproof strip can be tightly attached to the slide rail, but the assembly direction must be confirmed and assembly cannot be performed arbitrarily
Solution Approach 1:
The patent applies asymmetry in reverse by making the dustproof strip symmetric in cross-section. This allows the dustproof strip to be assembled in any direction without needing to confirm assembly orientation, while still maintaining effective dustproofing through the symmetric contact surfaces that can engage with the slide rail regardless of insertion direction.
2Reliability
If an asymmetric cross-sectional shape dustproof strip is used, then sealing can be achieved, but manufacturing precision control becomes difficult due to inconsistent cooling and contraction
Solution Approach 1:
The patent uses a symmetric cross-sectional shape for the dustproof strip, which ensures uniform cooling and contraction during injection molding or pressing processes. This symmetry eliminates the manufacturing precision control difficulties associated with asymmetric shapes, as heat distribution and material flow are more consistent throughout the mold cavity.
3Reliability
If an asymmetric cross-sectional shape dustproof strip is used, then dustproofing can be achieved, but mold opening must be performed respectively for different cross-sectional shapes and mold repair difficulty is high
Solution Approach 1:
The symmetric cross-sectional shape serves multiple functions: it provides effective dustproofing through contact surfaces, enables easy assembly in any direction, ensures uniform manufacturing during injection or pressing, and simplifies mold design and repair. This universal shape eliminates the need for different mold openings for different cross-sectional shapes.
4Ease of operation
If a symmetric cross-sectional shape dustproof member is used, then assembly can be performed in either direction, but the structure must accommodate both assembly and dustproof contact portions
Solution Approach 1:
The patent merges the assembly contact portion and dustproof contact portion into a single integrated dustproof strip structure. The symmetric cross-section allows one end to serve as the assembly contact portion while the other end serves as the dustproof contact portion, eliminating the need for separate components and reducing overall structural complexity.
Data Source
AI summary
A linear transmission module is provided, including a slider body, two end caps, and two dustproof members. The two end caps are respectively arranged at two opposite ends of the slider body. Each of the end caps includes two assembly grooves extending through the end cap in a direction. The two dustproof members extend in a direction. One end of each of the dustproof members is assembled in an assembly groove of one of the end caps, and the other end of each of the dustproof members is assembled in an assembly groove of the other end cap. Each of the dustproof members includes a dustproof member body, a first contact portion, and a second contact portion. The first contact portion and the second contact portion are) respectively located on two opposite sides of the dustproof member body, protrude from the dustproof member body, and are in a symmetrical shape.