Two-screw adjustable position limiting device
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Solution Overview
Problem
Existing curtain position limiting devices can only fix either the upper or lower limit, making them inconvenient for adjusting curtain heights.
Innovation Solution
A two-screw adjustable position limiting device comprising a connecting rod base, screw rod base, fixing plate, and movable fixing device, allowing for both upper and lower limit adjustments through a novel structure with screw engagement gaps, rotary wheels, and cross core rod bodies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an ordinary position limiting device is used, then the structure is simple, but only the upper limit or lower limit can be fixed, reducing adaptability
Solution Approach 1:
The device is divided into two independent screw adjustment systems: one for upper limit adjustment and one for lower limit adjustment. Each system can be adjusted independently, allowing flexible adaptation to different curtain height requirements while maintaining a relatively simple overall structure.
Solution Approach 2:
The position limiting device is designed to perform multiple functions: it can fix both the upper limit and lower limit of curtain movement, and can adjust to different height requirements. This multi-functionality is achieved through the dual-screw mechanism that independently controls both limits.
2Ease of operation
If a fixed position limiting device is used, then the manufacturing cost is low, but the ease of operation is poor due to inability to adjust different heights
Solution Approach 1:
The device transitions from a fixed position limiting mechanism to a dynamic adjustable one. The screw mechanisms allow the upper and lower limit positions to be dynamically adjusted according to different curtain height requirements, significantly improving ease of operation.
Solution Approach 2:
The device enables users to independently adjust the curtain height limits without requiring professional installation or complex tools. The screw adjustment mechanism is designed to be user-friendly, allowing end-users to perform the adjustment themselves.
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 precise adjustment of both upper and lower curtain limits, enhancing usability by accommodating different curtain height requirements.
Implementation Method 1
a spring is provided at bottom portions of the accommodating body c and the cross core rod body
Implementation Method 2
a screw body is provided with a gap from left to right... a screw rod... the screw rod base is inserted into the connecting rod base
Data Source
AI summary
The two-screw adjustable position limiting device of the present invention includes a connecting rod base, a screw rod base, and a fixing plate. A head portion of the connecting rod base is a mounting plate, and an accommodating body (a) passes through the middle of the mounting plate and is connected thereto. A bottom portion of the accommodating body is provided with a screw body. A bottom portion of the connecting rod base is fixed on a fixing base. A head portion of the screw rod base is a fluted disc, and an accommodating body (b) passes through the middle of the fluted disc and is connected thereto. Beneficial effects of the present invention are as follows: the upper limit can be fixed, and the position at which the lower limit is fixed can be adjusted.