Spa Sprayer Fixing Structure for Single-Person Installation
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Solution Overview
Problem
Conventional spa sprayers are difficult to mount and remove from foot spa tubs due to the large size of the tubs, requiring two people and increasing installation and maintenance costs, as they involve cumbersome bolt insertion and nut locking mechanisms.
Innovation Solution
A fixing structure for the spa sprayer that includes multiple fixers with rotation elements and drive elements, allowing the bolts to be screwed into threaded apertures of the fixers, which are then rotated to move the abutting portions toward the holder, reducing the number of bolt rotations needed for installation and removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional bolts and nuts are used to mount the spa sprayer, then the sprayer is securely fixed on the foot spa tub, but the installation and removal process becomes cumbersome and requires two people
Solution Approach 1:
The fixing structure is divided into modular components: the holder with integrated fixing holes, the sprayer body with corresponding mounting features, and the waterproof washer assembly. This segmentation allows each component to be independently manufactured and assembled, simplifying the overall installation process while maintaining secure fixation.
Solution Approach 2:
The holder integrates multiple functions into a single component: it provides structural support for the sprayer, incorporates fixing holes for mounting, and includes the waterproof washer assembly. This merging eliminates the need for separate fastening components and reduces the number of installation steps required.
2Reliability
If multiple bolts are inserted through the front face and locked with nuts on the back face, then the sprayer is firmly attached, but the process increases installation and maintenance costs
Solution Approach 1:
The complex nut-locking mechanism is extracted and replaced with a simplified single-side fastening system. The holder includes pre-formed fixing holes that accept fasteners from the front face only, eliminating the need for nuts on the back face and reducing installation complexity and cost.
Solution Approach 2:
The holder is designed with self-aligning fixing holes and integrated waterproof sealing features that automatically position themselves during installation. This self-service design reduces the need for precise alignment and additional fastening components, lowering installation costs while maintaining firm attachment.
3Volume of moving object
If the foot spa tub is large in size, then it provides sufficient space for foot soaking, but mounting the sprayer becomes difficult and requires two people
Solution Approach 1:
The sprayer assembly is segmented into a holder component and a sprayer body component that can be separately handled. The holder, being smaller and more manageable, can be easily mounted by one person using the simplified fixing structure, while the larger sprayer body is attached afterward, solving the mounting difficulty posed by the large tub size.
Solution Approach 2:
The fixing holes in the holder are positioned to accommodate mounting from the front face only, changing the dimensional approach from traditional two-sided fastening. This allows a single person to perform the entire mounting operation from one side of the large tub, eliminating the need for two people despite the tub's large size.
Data Source
AI summary
A fixing structure of a spa sprayer, the spa sprayer comprises: a body, a holder, and a water spray unit. The body includes an insertion segment, a connection segment, a motor, a holder, an annular positioning section, multiple fixers, and multiple bolts. The holder has multiple orifices, the annular positioning section has multiple seats and a receiving groove, the multiple seats has a plurality of recesses, and each of the multiple seats has two opposite notches. Each of the multiple fixers includes a rotation element, a drive element, and a first rotary shaft. The rotation element has a rotatable coupling portion and an abutting portion. The rotatable coupling portion has a second rotary shaft, and the rotatable coupling portion has two opposite first apertures. The drive element has a second aperture and a threaded aperture. The water spray unit is fixed on the holder of the body.