Threaded Valve Air Chuck With Multi-Jaw Airtight Clamping
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Solution Overview
Problem
Existing quick air chucks, including lever-type and multi-jaw types with sliding sleeves, often fail to provide a reliable connection to threaded valves, leading to air leakages and detachment due to structural limitations and reduced airtightness, especially in narrow spaces.
Innovation Solution
A multi-step cylindrical air chuck with a clamping jaw featuring regularly distributed jaw arms and internal thread teeth matching the valve, a sliding sleeve for controlled clamping, and an elastic retainer ring for enhanced clamping and airtightness, along with a seal washer for secure connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a lever-type single-side clamped structure is used, then the air chuck is convenient to use, but it fails to be reliably connected to the threaded valve due to structural limitations and fabrication precision, leading to air leakages and detachment
Solution Approach 1:
The clamping jaw is divided into multiple jaw arms (at least two) that are regularly distributed around the chuck body. Each jaw arm independently clamps the threaded valve, transforming the single-side clamping structure into a multi-point symmetric clamping structure. This segmentation improves connection reliability while maintaining operational convenience through the sliding sleeve control mechanism.
2Reliability
If multi-jaw quick air chucks with sliding sleeve are used, then air leakages are reduced, but the rigidity limitation of axial stop structure prevents clamping jaws from clamping the threaded valve more deeply, reducing connection airtightness in presence of axial external force
Solution Approach 1:
The jaw arms are designed with elastic deformation capability, allowing them to dynamically adapt to the threaded valve geometry. The elastic retainer ring provides pre-tension to the jaw arms, enabling them to maintain deep clamping engagement even under axial external forces. This dynamic flexibility overcomes the rigidity limitation of traditional axial stop structures.
3Reliability
If multi-jaw quick air chucks with sliding sleeve are used, then air leakages are reduced, but clamping jaws cannot clamp the threaded valve more deeply in narrow spaces, failing to realize normal clamping
Solution Approach 1:
The clamping jaw is segmented into multiple thin jaw arms that can be distributed within a compact radius. This segmentation allows the clamping mechanism to achieve deep engagement with threaded valves in narrow spaces while maintaining the airtightness benefits of multi-point contact. The compact arrangement of jaw arms reduces the overall volume requirement compared to traditional multi-jaw designs.
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
Ensures a quick, reliable, and airtight connection to threaded valves, preventing leaks and detachment, even in narrow spaces, with improved connection rigidity and adaptability to incomplete threads, enhancing usability and application range.
Implementation Method 1
an elastic retainer ring is disposed on an inner side of the front end of the clamping jaw to assist in stretching the jaw arms
Data Source
AI summary
An air chuck capable of quickly clamping a threaded valve comprises a chuck body (1). An air passage is formed in the chuck body (1). The chuck body (1) has one end connected to an elastic clamping jaw (5) and the other end connected to an air source. Jaw arms (52) are regularly disposed at a front end of the clamping jaw (5). Jaw teeth (51) in contact with a threaded valve are disposed at front ends of the jaw arms (52) and are multiple internal thread teeth that of the same specification as an external thread of the valve to be clamped. A sliding sleeve (4) is disposed around the chuck body (1) and slides to control the clamping jaw (5) to be opened or closed in a radial direction.