A dual-spray arm structure for a dishwasher and the dishwasher

By introducing a transmission gear structure into the dual spray arm structure of the dishwasher, the problem of inconsistent spray arm speeds was solved, achieving synchronous and stable rotation of the upper and lower spray arms and improving the cleaning effect.

CN224420952UActive Publication Date: 2026-06-30GUANGDONG JIENUO HOUSEHOLD APPLIANCES CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG JIENUO HOUSEHOLD APPLIANCES CO LTD
Filing Date
2025-05-06
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The existing dual-spray arm structure of dishwashers is prone to problems with inconsistent rotation speeds of the upper and lower spray arms under the drive hole, resulting in poor synchronization.

Method used

A transmission gear structure is used to mesh the upper and lower spray arms. The synchronization and stability of the spray arm rotation are ensured by the cooperation of the transmission gear with the upper and lower transmission gear structures.

Benefits of technology

It improves the rotational synchronization and stability of the upper and lower spray arms, thus enhancing the cleaning effect.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224420952U_ABST
    Figure CN224420952U_ABST
Patent Text Reader

Abstract

This utility model relates to a dual-spray arm structure for a dishwasher, comprising a spray arm base, an upper spray arm, and a lower spray arm. The upper and lower spray arms are rotatably mounted on the spray arm base. The upper end of the lower spray arm has an annular lower drive gear structure, and the lower end of the upper spray arm has a lower drive gear structure. A drive gear is disposed between the lower and upper drive gear structures on the spray arm base, and the drive gear meshes with both the upper and lower drive gear structures. This dual-spray arm structure solves the problem of poor synchronization by setting a drive gear structure between the upper and lower spray arms, and also improves the stability of the upper and lower spray arms during operation and rotation.
Need to check novelty before this filing date? Find Prior Art