Automobile Hot Water Hose Joint Pliers for Confined Engine Bay Access
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Solution Overview
Problem
The existing joint connection system for automobile hot water hoses in narrow engine bays is difficult to operate manually due to space constraints, necessitating a specialized tool for connecting or disconnecting the joints.
Innovation Solution
A pliers tool designed specifically for automobile hot water hose joints, featuring two hand grips, a pivoting mechanism, and an elastic element to keep the grips open, along with semi-curved clipping parts to securely engage and rotate the lock ring of the hose joint.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If bare hands are used to operate the joint, then the operation is simple, but the operator cannot reach or operate the joint in the narrow engine bay space
Solution Approach 1:
The pliers are divided into two separate hand grips (first and second hand grips) that can be independently positioned and operated. Each hand grip connects to a plier body through a pivoting part, allowing the operator to reach into narrow spaces with fingers while maintaining control through separate hand movements.
Solution Approach 2:
The pliers extend the operator's reach into the narrow engine bay space by creating a mechanical lever system that projects beyond the operator's hand position, allowing access to locations that would otherwise be inaccessible to bare hands.
2Volume of moving object
If a customized hand tool is used to reach into narrow space, then accessibility is improved, but the tool complexity increases
Solution Approach 1:
The pliers are designed with universal functionality to perform multiple operations: gripping the lock ring, rotating the lock ring for locking and unlocking, and applying clamping force. The semi-curved clipping mouth and pivoting mechanism enable the same tool to handle both tightening and loosening operations, as well as gripping and rotating actions.
Solution Approach 2:
The pliers incorporate dynamic elements including pivoting parts that allow the hand grips to move independently relative to the plier bodies, and an elastic element that provides dynamic force adjustment. The pivoting mechanism enables the tool to adapt to different angles and positions within the narrow engine bay space.
3Ease of operation
If the lock ring is rotated for locking and unlocking, then the joint can be secured or released, but the operation requires sufficient space and leverage
Solution Approach 1:
The clipping mouth is designed with a semi-curved shape that matches the geometry of the lock ring. This curved design allows the pliers to engage with the lock ring at optimal angles and provides mechanical advantage for rotating the lock ring with reduced effort, leveraging the curvature to amplify the operator's rotational force.
Solution Approach 2:
The elastic element is pre-loaded to maintain the hand grips in an open position, ready for immediate engagement with the lock ring. This preliminary positioning of the gripping elements allows the operator to begin rotation without first having to close the grips, saving time and effort.
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 pliers enable easy and stable operation within the confined space of an automobile engine bay, allowing for effortless locking and unlocking of the hot water hose joint, facilitating installation and dismantling tasks.
Implementation Method 1
An elastic element is disposed between the two hand grips. By the elastic force of the elastic element, the two hand grips keep opened normally.
Data Source
AI summary
An automobile hot water hose pliers is installed to a hot water hose on a tube end of an evaporator of the automobile or dismantle the hot water hose from the tube end. The pliers includes two hand grips. An end of each hand grip is connected and fixed to a plier body. A pivoting part of one plier body is overlapped with the other pivoting part of the other plier body, and the two pivoting parts are pivoted together by a spindle. An elastic element is disposed between the two hand grips, and by elastic force of the elastic element, the two hand grips keep opened normally. Each plier body includes a clipping part, wherein a semi-curved clipping mouth is disposed opposite to the clipping part, and is used to clip a lock ring of the hot water hose joint, thereby rotating the pliers to the lock ring.