Rotating Bonnet Valve for Friction Reduction
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Solution Overview
Problem
Existing fluid distributor valve systems for swimming pool bottom cleaning suffer from wear due to friction in the opening and closing mechanisms of fluid outlets, particularly in models with angular sliding covers, which complicates operation and reliability.
Innovation Solution
The system employs rotating circular bonnets with conical bases and radial openings, operated by a reducing gear mechanism with lugs of varying heights to facilitate partial rotation and prevent misalignment, reducing friction and simplifying the operation of opening and closing water outlets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If angular sliding covers are used to open and close fluid outlets, then the outlets can be controlled, but wear occurs due to friction in the movement mechanism
Solution Approach 1:
Instead of sliding covers moving linearly to open/close outlets, the invention inverts the mechanism to use rotating bonnets that pivot on a fixed axis. The rotation angle controls the outlet opening degree, transforming a sliding motion problem into a rotational motion solution that eliminates friction wear between moving cover surfaces.
Solution Approach 2:
The invention replaces the mechanical sliding friction system with a gear-driven rotational system. The reducing gear converts motor rotation into bonnet rotation, substituting direct mechanical contact friction with gear meshing and rotational pivoting, thereby reducing wear on the outlet control components.
2Ease of operation
If simplified means are used to operate outlets, then operation is easier, but wear from friction occurs in the movement mechanism
Solution Approach 1:
The bonnet design incorporates self-aligning features where the conical shape and pivot axis automatically guide the rotation movement. The outlet opening degree is directly controlled by the rotation angle, eliminating complex control mechanisms and reducing friction through self-service alignment without requiring additional actuating components.
3Object-affected harmful factors
If rotating bonnets are used instead of sliding covers, then friction wear is reduced, but the device structure becomes more complex
Solution Approach 1:
The reducing gear serves multiple functions: it converts motor rotation to bonnet rotation, controls the opening degree through gear ratio, and provides a compact structural solution. The conical bonnet design simultaneously achieves sealing, rotation guidance, and wear reduction, consolidating multiple functions into unified components that reduce overall structural complexity despite the rotational mechanism.
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
This solution minimizes wear and enhances operational efficiency by using rotating bonnets with a gear-driven mechanism, ensuring reliable and friction-reduced operation of the fluid outlets, thereby improving the longevity and performance of the valve system.
Implementation Method 1
a reducing gear acting by virtue of the action of the inflowing water on a rotor cooperating with said gear
Implementation Method 2
acting by virtue of the action of the inflowing water on a rotor
Data Source
Figure 1~3
AI summary
A device for opening and closing outlets of a fluid distributor valve. It comprises a body having outlets (4), and a bonnet housing a rotor having submitted to the action of the inflowing fluid and being connected to a reducing gear (11) activating the closing device. Is characterised by the fact that the opening of said outlets (4) is carried out with respective angularly sliding shutters being turned by means successively shifting them in opposite directions to thus respectively obtain the opening and closing of said outlets. The means determining the rotation of the bonnets (5) comprise lugs (10a,10b) below a base bushing bearing the reducing gear operating on lugs (5a,5b) fitted onto the edge of the bonnets.