Sliding wheel assembly, guide assembly and shower door
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Solution Overview
Problem
Existing shower door pulley assemblies experience uneven surfaces and noise due to debris accumulation on guide rails, leading to poor movement and potential entanglement, which affects the smooth operation of the movable door plate.
Innovation Solution
A pulley assembly with integrated cleaning brushes and a housing design that keeps the pulley in constant contact with the guide rail, preventing debris accumulation and ensuring smooth movement, along with a rotating shaft and bearing system for secure installation and adjustable height.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the guide rail is disposed on the floor for sliding door operation, then the door can open and close smoothly, but debris accumulates on the guide rail causing uneven pulley surfaces and noise
Solution Approach 1:
The cleaning brush performs preliminary cleaning action on the guide rail surface before the pulley contacts it. The brush continuously removes debris and water from the guide rail, ensuring that when the pulley rolls on the guide rail, the contact surface is always clean and smooth, preventing noise and uneven movement
Solution Approach 2:
The cleaning system is self-powered by the motion of the pulley itself. As the pulley moves along the guide rail during normal door operation, it drives the cleaning brush to clean the guide rail surface, eliminating the need for external power sources or separate cleaning mechanisms
2Ease of operation
If the pulley moves on the guide rail with debris present, then the door can still slide, but the pulley jumps and produces noise
Solution Approach 1:
The cleaning brush performs preliminary cleaning action on the guide rail surface before the pulley contacts it. The brush continuously removes debris and water from the guide rail, ensuring that when the pulley rolls on the guide rail, the contact surface is always clean and smooth, preventing noise and uneven movement
Solution Approach 2:
The cleaning brush acts as an intermediary between the pulley and the guide rail. It mediates the interaction by maintaining a clean contact surface on the guide rail, ensuring smooth and stable pulley movement while preventing direct contact between the pulley and debris-contaminated rail surfaces
3Object-affected harmful factors
If cleaning brushes are added to the pulley assembly, then debris is removed from the guide rail, but the device complexity increases
Solution Approach 1:
The cleaning brush function is merged with the pulley assembly structure. The brush is integrated into the pulley housing and driven by the pulley's own motion, combining the cleaning function with the existing door sliding mechanism, thereby reducing the need for separate cleaning systems and minimizing additional complexity
Solution Approach 2:
The pulley assembly is given multiple functions: it serves both as the driving element for door sliding and as the power source for the cleaning brush. The same motion that enables door operation also drives the cleaning action, making the system multi-functional and reducing overall system complexity
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 pulley assembly moves steadily and quietly, maintaining cleanliness of the guide rail surface, preventing noise and entanglement, and simplifying maintenance and installation, while ensuring reliable operation of the shower door.
Implementation Method 1
When a pulley moves on the guide rail, the dust is easy to be mixed with water and bonded on the pulley, causing a surface of the pulley fitted with the guide rail to be uneven
Implementation Method 2
a pulley, where the pulley assembly further includes a housing and two cleaning brushes, the housing has an installation position, the pulley is installed in the installation position, the pulley may rotate around a rotation axis of the pulley
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
Provided are a pulley assembly (100, 72), a guide assembly (7), and a shower door (8). The pulley assembly (100, 72) includes a pulley (1), a housing (2), cleaning brushes (3), a separator (4), a rotating shaft (5), and a bearing (6). The guide assembly (7) includes a guide rail (71) and a pulley assembly (72). The shower door (8) includes a movable door plate (81) and a guide assembly (82).The structure of the pulley assembly (100, 72), the guide assembly (7), and the shower door (8) can be configured to clean the guide rail (71) and produce low sliding noise.