Filter Plate Ball-Snap Attachment for High-Pressure Reassembly
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Solution Overview
Problem
Conventional fastening methods for filter press attachments can lead to impaired functionality due to loose connecting elements and thread blockage under high pressures, especially with stainless steel, making it difficult to detach and reattach components without risking damage.
Innovation Solution
A releasable ball-type snap connection is used to securely attach and detach filter press attachments, utilizing a spherical element with a circular cross-section and elastic coupling to ensure a secure, fluid-tight connection that remains intact under high pressures and allows for easy reassembly without loose parts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional fastening methods (screws, threads) are used to attach filter press components, then the connection can be secure under pressure, but the threads become blocked by solids under high pressure making detachment difficult and causing functionality impairment
Solution Approach 1:
The connection system is divided into separate components: a fastening element with protrusions and a corresponding recess structure. This segmentation allows the connection to be made secure through interlocking geometry while enabling easy detachment by aligning and inserting the components without threaded engagement that can block with solids.
Solution Approach 2:
The conventional threaded mechanical fastening system is replaced with a snap-fit or detent-based mechanical system. This substitution eliminates threads that can be blocked by solids, while maintaining secure connection through elastic deformation and geometric interlocking of the protrusions and recesses.
2Reliability
If conventional threaded fasteners are used, then the attachment can be securely fastened, but loose connecting elements can be lost and thread blockage occurs under high pressure
Solution Approach 1:
The fastening and detent functions are merged into an integrated snap connection system where protrusions and recesses work together as a unified mechanism. This eliminates separate loose connecting elements like nuts and bolts, reducing the risk of loss while maintaining reliable attachment through the interlocking geometry.
Solution Approach 2:
The elastic material in the recess structure provides self-service by automatically deforming to accommodate the protrusions and then snapping back to lock them in place. This self-actuating mechanism ensures reliable attachment without requiring additional fastening elements that could be lost.
3Duration of action of stationary object
If stainless steel components are used in high pressure environments, then durability is improved, but thread blockage occurs making detachment difficult
Solution Approach 1:
Instead of using threaded fasteners that require unscrewing (an operation that becomes difficult when blocked), the design inverts the approach by using a push-to-connect snap system. The components are attached by pushing them together until they snap into place, and detached by releasing the elastic lock, completely avoiding the thread blockage problem while maintaining durability.
4Ease of operation
If snap connections are used for detachable fastening, then ease of assembly and disassembly is improved, but connection strength under high pressure may be compromised
Solution Approach 1:
The connection strength is enhanced by utilizing the elastic properties of the recess material, allowing it to deform and create a strong locking force when the protrusions are inserted. This parameter change from rigid to elastic material enables the snap connection to maintain high connection strength under pressure while preserving ease of assembly and disassembly.
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 ball-type snap connection ensures long-term functionality by preventing thread blockage and ensuring reliable attachment and detachment of filter press components, even under high operational pressures, thus maintaining the filter press's performance and reducing wear on components.
Implementation Method 1
an attachment (9, 9') is fastened to the base body (4) in a detachable manner by means of at least one ball-type snap connection (12, 13), wherein the ball-type snap connection (12, 13) comprises a spherical element (16) and an elastic coupling (13)
Data Source
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AI summary
The invention relates to an assembly comprising a filter plate for filter press and at least one attachment part, wherein the filter plate has a filter chamber boundary surface, by means of which a filter chamber to be formed in the filter press can be bounded. At least one channel for a fluid connection to the filter chamber boundary surface is formed in the filter plate, and the attachment part is detachably fixed to the filter plate at the channel by means of at least one detachable ball-type snap-in connection. The ball-type snap-in connection comprises at least one ball pin and at least one coupling. The invention further relates to an assembly comprising such a filter plate for a filter press and at least one add-on part, in which the add-on part is detachably fixed to the filter plate by means of at least one ball-type snap-in connection and has an opening which is arranged in the channel.