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Study 06 / Fluid handling

Portable water flosser pump and housing design

The pump, removable tank and electronics share a narrow handle. Section drawings show how the valves control flow, how the pump is retained and how the nozzle lock fits into the top cover.

Owen Wen · Past engineering project · Anonymized

Exploded water flosser showing the pump, tank and handle components

Project overview30 drawings

Drawing index

Which interfaces need sealing?

The pump, tank, USB Type-C port and top cover each create a potential leak path. The section drawings show the tank seal, soft port cover and overmolded buttons alongside the pump and battery mounts.

See drawings Tank seal and cross-section · USB Type-C port seal

Drawing series 01

Product Overview

Water flosser — Product features and tank layout — Product features and tank layout

Drawing series 02

Component Specifications & Layout

Water flosser — Pump components and circuit board — Pump components and circuit board

Water flosser — Motor and battery specifications — Motor and battery specifications

Drawing series 03

Structural Design Details

Water flosser — Pump motor and gear train — Pump motor and gear train

Water flosser — Piston and water pump assembly — Piston and water pump assembly

Water flosser — Pump chamber cross-section — Pump chamber cross-section

Water flosser — Duckbill valve and flow path — Duckbill valve and flow path

Water flosser — Pump valve seating detail — Pump valve seating detail

Water flosser — Water channel routing — Water channel routing

Water flosser — Exploded pump mounting assembly — Exploded pump mounting assembly

Water flosser — Motor mounting cross-sections — Motor mounting cross-sections

Water flosser — Drive gear retention — Drive gear retention

Water flosser — Pump bracket attachment — Pump bracket attachment

Water flosser — Bracket fixing points — Bracket fixing points

Water flosser — Battery bracket retention — Battery bracket retention

Water flosser — Circuit board locating pins and clips — Circuit board locating pins and clips

Water flosser — Overmolded button materials — Overmolded button materials

Water flosser — Overmolded button cross-section — Overmolded button cross-section

Water flosser — Indicator light arrangement — Indicator light arrangement

Water flosser — Water tank assembly components — Water tank assembly components

Water flosser — Tank tube and rotary-lock stop — Tank tube and rotary-lock stop

Water flosser — Tank seal and cross-section — Tank seal and cross-section

Water flosser — Tank finger grip and port — Tank finger grip and port

Water flosser — Tank interface detail — Tank interface detail

Water flosser — USB Type-C port seal — USB Type-C port seal

Water flosser — Top cover assembly components — Top cover assembly components

Water flosser — Sliding lock and button travel — Sliding lock and button travel

Water flosser — Nozzle lock cross-section — Nozzle lock cross-section

Water flosser — Top cover attachment — Top cover attachment

Water flosser — Water flosser design summary — Water flosser design summary