Tapping Head Lever Locking for Automatic Keg Spear Switching
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Solution Overview
Problem
Conventional keg spear control mechanisms are complicated and inconvenient, requiring users to manually overcome spring forces to switch between open and closed states, making operation cumbersome.
Innovation Solution
An efficient distributor with a locking boss and locking block system that automatically unlocks and locks when switching states, using guide surfaces and a reset member to facilitate easy operation without additional user intervention, allowing the keg spear to be opened or closed by simply moving the operating member forward or backward.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional locking mechanism with spring and ejector rod is used, then the keg spear can be locked in open or closed state, but the operation process becomes complicated and inconvenient requiring manual switching between positions
Solution Approach 1:
The locking mechanism automatically switches between locked and unlocked states based on the operating member's position. The guide surfaces on the locking boss automatically guide the locking block along the guide grooves, enabling self-locking and self-unlocking without manual intervention. The system serves itself by using the operating member's movement to trigger the locking/unlocking sequence.
Solution Approach 2:
The guide surfaces are pre-configured on the locking boss and guide grooves are pre-formed on the locking block. When the operating member moves, these pre-designed geometric features automatically engage and guide the locking block through the required motion path, preparing and executing the locking or unlocking action in advance without requiring user judgment or additional steps.
2Adaptability or versatility
If a movable handle with spring and ejector rod is used for switching states, then the keg spear can be opened or closed, but additional manual operations are required making the process cumbersome
Solution Approach 1:
The locking and unlocking functions are merged into a single automatic process triggered by the operating member's movement. The guide surfaces and guide grooves are combined into an integrated geometric system where the locking boss's movement automatically controls the locking block's position, eliminating the need for separate manual locking and unlocking operations.
Solution Approach 2:
The complex movable handle mechanism with spring and ejector rod from conventional designs is extracted and replaced with a simplified automatic locking system. The patent removes the need for manual handle manipulation by extracting the essential locking function and implementing it through the guide surface-guided locking block system that operates automatically with the operating member.
3Ease of operation
If manual operation to overcome spring force is required, then the handle can be switched between positions, but user effort increases making operation inconvenient
Solution Approach 1:
The locking block uses the operating member's movement to automatically overcome any spring force or resistance. The guide surfaces and guide grooves work together to convert the operating member's linear movement into the locking block's automatic engagement or disengagement, eliminating the need for the user to directly apply force to overcome springs or resistive elements.
Solution Approach 2:
The guide surfaces and guide grooves act as intermediaries between the operating member and the locking block. Instead of the user directly manipulating the locking block against spring force, the guide surfaces mediate the interaction, translating the operating member's movement into automatic locking/unlocking action without requiring the user to directly overcome resistive forces.
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 provides a convenient and efficient method for controlling the keg spear, ensuring automatic locking and unlocking, reducing user effort and enhancing usability by eliminating the need for manual force to overcome spring forces.
Implementation Method 1
a first reset member, wherein the first reset member acts on the locking block so that the locking block tends to move in a direction close to the locking matching member
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
Tapping head comprising a housing 1, an operating lever 2, a locking member 3 and a control member 4 connected to the operating lever 2. The operating lever includes a locking matching member 201 with a locking boss 202 protruding therefrom. The locking boss 202 includes a first locking matching surface 2021 and a second locking matching surface 2022. The locking member 3 includes a locking block 301 capable of moving to or away from the locking matching member 201, and a first reset member 302. The first reset member 302 causes the locking block 301 to tend to get close to the locking matching member 201. The locking block 301 includes a first locking surface 3011 and a second locking surface 3012. The first locking surface 3011 and a first locking matching surface 2021 are provided with first guide surface 5 guiding the locking block 301 to get away from the locking matching member 201. The second locking surface 3012 and a second locking matching surface 2022 are provided with a second guide surface 6 guiding the locking block 301 to get away from the locking matching member 201. The locking boss 202 and the locking block 301 are automatically unlocked when a state of the operating lever 2 is switched and automatically locked after the state is switched.