Milking Machine Pressure Control Bayonet Coupling
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Solution Overview
Problem
Existing pressure control devices for milking machines require extensive and time-consuming maintenance due to their complex designs and the need for tools to dismount and mount components, making them difficult to clean and replace worn parts.
Innovation Solution
A pressure control device with a bayonet coupling system that allows for easy removal and replacement of components, such as the solenoid and pilot valve body, without tools, and includes a snap-locking cover for electrical connections, reducing maintenance time and complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional screw fastening is used to attach the holding member to the housing, then the connection is secure and reliable, but the maintenance time increases and tools are required for disassembly and assembly
Solution Approach 1:
The holding member is designed as a separate, modular component that can be independently removed from the housing. This segmentation allows the holding member to be detached as a complete unit with the solenoid and pilot valve body, enabling maintenance without disassembling the entire device or requiring tool removal of multiple fastened components.
Solution Approach 2:
The bayonet coupling mechanism provides a dynamic fastening system that transitions between locked and unlocked states through simple rotational motion. This dynamic connection allows rapid attachment and detachment of the holding member without screws or complex fastening mechanisms, reducing maintenance time while maintaining secure operation during use.
2Adaptability or versatility
If multiple separate components are used in the pressure control device, then the device functionality is comprehensive, but the device complexity increases and maintenance becomes more difficult
Solution Approach 1:
The holding member integrates multiple functional components including the solenoid, pilot valve body, and coupling mechanism into a single removable assembly. This merging reduces the number of separate parts that need to be handled during maintenance while preserving all necessary functionalities. The integrated holding member can be replaced as one unit, simplifying maintenance despite the comprehensive functionality of the device.
Solution Approach 2:
The holding member serves multiple functions simultaneously: it provides structural support, houses the solenoid and pilot valve body, enables rapid attachment/detachment via bayonet coupling, and facilitates maintenance access. This multi-functionality reduces the need for separate components for each function, thereby reducing overall device complexity while maintaining adaptability.
3Reliability
If the solenoid and pilot valve body are permanently mounted, then the structural integrity is maintained, but the ease of repair decreases and component replacement becomes time-consuming
Solution Approach 1:
The holding member is designed as a segmented, removable assembly that contains the solenoid and pilot valve body. This segmentation allows these components to be replaced together as a single unit without permanently mounting them to the housing, maintaining structural integrity during operation while enabling easy replacement during maintenance.
Solution Approach 2:
The bayonet coupling provides a dynamic mounting system that transitions from a secure locked state during operation to an easily removable state during maintenance. This dynamic connection allows the holding member with integrated components to be firmly attached when needed for reliability, yet quickly detached for repair without permanent mounting.
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
Facilitates quick and tool-free maintenance by allowing easy access to internal components, reducing maintenance time and simplifying the process of replacing parts, while also reducing energy consumption with a disk-shaped pilot valve body.
Implementation Method 1
a solenoid (9) controlling the pilot valve body (8) of the pilot passage (7)
Implementation Method 2
the holding member (10) is attached to the housing (1) by means of a first bayonet coupling
Data Source
Figure 1~3
Figure 4~5
Figure 6~7
AI summary
A pressure control device for a milking machine comprises a housing (1), a vacuum inlet (2), and two control circuits (3a, 3b). Each circuit comprises a main vacuum passage (4) extending through the housing from the vacuum inlet to an outlet (5), and including a main valve (6) configured to take one of an open position and a closed position. A pilot passage (7) extends from the main vacuum passage and includes a pilot valve body (8) configured to take one of an open pilot position and a closed pilot position. The pilot passage acts in the open pilot position on the main valve to move to the open position, and permits in the closed pilot position the main valve to move to the closed position. A solenoid (9) controls the pilot valve body. A holding member (10) receives the solenoid and is attached to the housing through a first bayonet coupling.