Spreader Valve Switch With Elastic Reset And Rotating Tube
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Solution Overview
Problem
Conventional spreader control switches with elastic members in a normally closed state require continuous user effort to maintain operation, leading to laborious and potentially uneven material spreading due to accidental loosening.
Innovation Solution
A spreading control switch structure featuring a spreading tube, positioning member, main tube, and switch unit with a valve and elastic member, allowing for adjustable opening and closing states and spreading amounts through a rotating mechanism and guiding grooves, ensuring the valve remains closed without constant user input.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional push switch with elastic member in normally closed state is used, then the pipeline can be controlled to stop or eject material, but the user must continuously release the switch during operation which is laborious and may cause accidental loosening leading to uneven spreading
Solution Approach 1:
The invention inverts the conventional normally-closed switch design to a normally-open state. The elastic member now maintains the valve in a closed position, and the user only needs to press the push button briefly to open the valve for material ejection. After release, the elastic member automatically returns the valve to closed position. This inversion eliminates the need for continuous user effort while preventing accidental loosening, as the default closed state is maintained by the elastic force rather than continuous pressure.
Solution Approach 2:
The elastic member provides self-service functionality by automatically returning the valve to its default closed position after material ejection. The system serves itself by using the elastic recovery force to reset the switch state without requiring continuous user intervention. This self-resetting mechanism ensures reliable operation and prevents accidental loosening while reducing user labor.
2Ease of operation
If the push switch is designed to maintain closed state without user input, then user effort is reduced, but the spreading amount cannot be adjusted
Solution Approach 1:
The invention introduces a rotatable main tube with a distributing opening that can be oriented in different directions (front, rear, left, right). This dynamic positioning capability allows the user to adjust the spreading direction and amount by rotating the main tube to different angular positions. The distributing opening's movement through different spatial orientations provides adaptability for various spreading requirements while maintaining the simplified normally-open switch operation.
Solution Approach 2:
The spreading control is segmented into two independent functions: (1) the push switch controls the opening/closing of the valve for material flow, and (2) the rotatable main tube with distributing opening controls the spreading direction and amount. This segmentation allows each function to be optimized independently - the push switch provides easy operation with automatic reset, while the rotatable distributing opening provides adjustable spreading characteristics without interfering with the switch operation.
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 solution simplifies and stabilizes the spreading process by allowing for easy adjustment of spreading amounts and preventing accidental loosening, reducing user effort and ensuring even distribution of materials.
Implementation Method 1
An elastic member is disposed between the linkage arm and the spreading tube and ejects the switch unit to maintain the valve closing the spreading tube
Data Source
AI summary
A spreading control switch structure of a spreader has a spreading tube, a positioning member, a main tube and a switch unit. With the positioning member and the switch unit, the opening and closing state and the spreading amount of the present invention can be adjusted by the circular plate of the valve in the spreading tube. The size of the pipe in the spreading tube is opened to control the blanking amount. On the other hand, the circular plate of the valve can be kept opened in the spreading tube all time without the switching handle being pressed. Therefore, it is easier and less laborious to execute the spreading process.