3D Model of Vortex Drain Blade

I need a 3D model of a Vortex Drain-Cleaning Blade for a science project. The model will be used for display purposes.

Project Title Vortiblade: Vortex Drain-Cleaning Blade Attachment for Road Drainage Caps Objectives The main goal of this project is to design and propose a clip‑on drain‑cleaning attachment that: Clips firmly and watertightly to the underside of existing roadside drainage caps Uses two sharp retractable blades to break large trash into smaller pieces so they do not block the drain openings Uses spinning motion to generate a vortex that helps suck water and debris into the drain, promoting smoother water flow off the road surface Is safe, low‑maintenance, and practical to install and remove by drainage workers.

Proposed Invention and Working Principle Overall Concept: The proposed invention is a clip‑on mechanical attachment that fits onto the bottom side of a standard drainage cap or strainer. It consists of: A central rotating shaft Two sharp retractable blades attached to the shaft A simple custom drill that can be attached to a L-shaped tube in order to turn the turbine A firm, waterproof clamp system that grips the edges of the drain strainer from below The device is designed so that when water flows through the drain cover, the blades spin and create both cutting and vortex effects, improving the clearing of debris.

Here is a reference of the entire said design with dimensions:

Front View (mm)

Side View (mm)

Cutting Function: Retractable Blades The two blades are mounted opposite each other on a central rotating shaft beneath the drain cap. When the device is activated, the shaft rotates, and the blades swing outwards due to centrifugal force. ​ When large pieces of trash, leaves, or other blockages collect at the drain openings, the spinning blades make contact and cut them into smaller pieces.

The blades are retractable: When the rotation speed decreases, springs or hinges pull the blades back closer to the shaft, reducing the risk of accidental contact during maintenance.

The cutting action is inspired by cutter‑type sewage pumps, which chops solids into smaller pieces to prevent clogging. ​ By reducing big pieces of trash into smaller fragments, the chance of complete blockage at the grate is lowered, and the debris can pass further into the drainage system where it is less likely to cause surface flooding.

Here is a 2D reference of said turbine with dimensions

Front View (mm)

Vortex Function: Swirling Flow As the blades spin, they do not only cut but also push the water in a circular motion around a centre. This creates a vortex, similar to the swirling water seen when a sink or bathtub drains. ​ The circular motion of the water generates a centrifugal effect, where water and heavier debris are pushed outward, while a region of lower pressure forms near the centre.

This lower‑pressure centre helps suck nearby water and floating debris towards the drain openings and into the rotating region.

As a result, more water and trash are drawn downwards into the drain instead of remaining on the road surface.

This principle will be similar to vortex‑type impellers and centrifugal separators used in water treatment, which use rotational flow to separate and move solids without easily clogging.

Clip‑On Clamp Design To make the invention practical, the attachment must be easy to install on existing drain caps without major modification.

The decludes:

A ring‑shaped clamp that matches the underside circumference of a typical road drain strainer. Multiple adjustable jaws or clips that grip the metal bars or rim of the strainer from below, using bolts or screw‑tightened clamps. A rubber gasket between the clamp and the drain cap to improve grip and provide a waterproof, non‑slip fit, similar to existing drain clamp and collar products used in plumbing.

This clip‑on approach is inspired by commercial clamp‑type drain accessories and main‑drain clip products that can be added to existing drains without replacing the whole structure. It allows maintenance workers to install or remove the device with simple tools, making it suitable for trial use in selected flood‑prone locations.

There is a reference photo

Linked 2D Reference:

The decludes:

Key requirements:

• Medium detail
• File format: STL, OBJ, or STEP

Ideal skills and experience:

• Proficiency in 3D modeling software
• Experience with creating functional and detailed models
• Ability to follow design specifications accurately Budget: HKD 240–2000 Skills: 3D Rendering, Mechanical Engineering, 3ds Max, 3D Modelling, 3D Animation, 3D Design, 3D CAD, 3D Visualization, 3D Print Design, 3D Graphic Design