Adjustable heating and ventilation duct waste heat recovery assembly

CN224382224UActive Publication Date: 2026-06-19SUZHOU RUIDE TIANXIN TECH CO LTD

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner: SUZHOU RUIDE TIANXIN TECH CO LTD
Filing Date: 2025-07-24
Publication Date: 2026-06-19

AI Technical Summary

Technical Problem

Existing adjustable HVAC duct waste heat recovery components require additional parts, such as flanges, clips, or sealing rings, during connection, which leads to complex installation, easy loosening, media leakage, and heat loss, affecting stability and recovery efficiency.

Method used

The sliding connection structure between sleeve one and sleeve two is adopted. Combined with the sealing and fixing components on the outer wall of the inner pipe, a stable connection without additional parts is achieved through connecting pins, levers, fixing pins, etc., and the flexible contact of soft extrusion rings and springs is used to fix inner pipes of different diameters.

Benefits of technology

It enables easy fixing of sleeve one and sleeve two, adapts to different pipe diameters, avoids the use of additional parts, improves the practicality and efficiency of the equipment, and reduces maintenance costs and heat loss.

✦ Generated by Eureka AI based on patent content.

Smart Images

Figure CN224382224U_ABST

Patent Text Reader

Abstract

This utility model relates to the field of waste heat recovery components and discloses an adjustable HVAC duct waste heat recovery component, including a first sleeve, a second sleeve slidably connected to the bottom of the first sleeve, an inner pipe between the first sleeve and the second sleeve, a sealing component on the outer wall of the first sleeve, connecting blocks fixedly connected to the outer walls of both the first and second sleeves, a fixing ring fixedly connected to one side of each connecting block, a fixing component disposed inside each fixing ring, and a waste heat recovery device fixedly connected to one end of the inner pipe. In this utility model, rotating the lever to one side causes the upper connecting pin and fixing pin to slide into the lower fixing ring, thereby easily fixing the first and second sleeves to the outside of the inner pipe, avoiding the need to use other parts to fix the first and second sleeves, thus improving the practicality of the adjustable HVAC duct waste heat recovery component.

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