一种暖通用圆管管口过滤机构
By designing a HVAC round pipe inlet filter mechanism, the cleaning plate is rotated and reciprocated linearly by a connecting shaft. Combined with the spiral external plate of the scraping plate and the inverted U-shaped guide rod, the problem of impurities accumulating in HVAC pipe filters is solved, achieving a highly efficient cleaning effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINAN HEATING POWER ENG CO
- Filing Date
- 2025-08-19
- Publication Date
- 2026-07-17
AI Technical Summary
After prolonged use, existing HVAC duct filtration devices accumulate a lot of impurities on the filter screen, resulting in poor cleaning performance and inconvenience in using the filtration components.
A HVAC-compatible circular pipe inlet filtration mechanism was designed, comprising a circular pipe body, an auxiliary plate, a connecting shaft, a fan, a cleaning plate, a reset assembly, an inner plate, and a filter screen. The cleaning plate is driven to rotate and reciprocate linearly via the connecting shaft. Combined with the spiral outer plate of the scraping plate and the inverted U-shaped guide rod, a multi-functional cleaning effect is achieved.
It effectively removes impurities from the filter screen and the inner wall of the pipe, ensuring the filter screen is clean, avoiding impurity residue, and improving the efficiency and reliability of the filter components.
Smart Images

Figure CN224506555U_ABST
Abstract
Claims
1. A heating and plumbing round pipe mouth filtering mechanism, characterized in that, The device includes a circular tube body, an auxiliary plate, a connecting shaft, a fan, a cleaning plate, a reset assembly, an inner plate, and a filter screen. The circular tube body has a filter screen at its inlet end. The auxiliary plate is installed on the inner wall of the circular tube body. The cleaning plate is located below the auxiliary plate. One end of the connecting shaft passes through the auxiliary plate and is connected to the cleaning plate. The lower end of the connecting shaft is connected to the cleaning plate through the reset assembly. The inner plate is connected to the inner wall of the circular tube body. The upper surface of the inner plate has a protrusion. The length of the cleaning plate is greater than the inner diameter of the inner plate. Both ends of the cleaning plate are placed on the upper surface of the inner plate.
2. A round tube port filter mechanism for heating and ventilation according to claim 1, wherein The reset assembly includes a long pin and a reset spring. The lower end of the long pin is connected to the cleaning plate, the upper end of the long pin is fixedly connected to one end of the reset spring, and the other end of the reset spring is fixedly connected to the inner wall of the connecting shaft.
3. A round tube port filter mechanism for heating and ventilation according to claim 2, wherein The lower inner wall of the connecting shaft is provided with a sliding groove, and the long pin is provided with a protrusion on the outside. The protrusion cooperates with the sliding groove to realize the stable rotation of the long pin and the cleaning plate with the connecting shaft.
4. The round tube port filter mechanism for heating, ventilation and air conditioning according to claim 1, wherein It also includes a scraper and a connecting plate. The middle part of the connecting plate is sleeved and fixedly connected to the connecting shaft. The end of the connecting plate is fixedly connected to the inner wall of the scraper. The outer wall of the scraper is provided with a brush that can clean dirt from the side wall of the round pipe.
5. A filter mechanism for the mouth of a round tube for heating purposes according to claim 4, characterised in that A guide rod is fixedly connected to the inner wall of the scraping plate. The guide rod is inverted U-shaped and passes through the interior of the connecting plate. An outer plate is provided on the outer wall of the scraping plate. The outer plate is spirally arranged. A guide rod that pushes and cooperates with the outer plate is provided on the inner wall of the round tube.
6. A filter mechanism for the mouth of a round tube for heating purposes according to claim 5, characterized in that The guide rods are symmetrically distributed on both sides of the inner wall of the circular tube.
7. A round tube port filter mechanism for heating and ventilation according to claim 1, wherein The inner plate is provided with a number of protrusions, which are distributed at equal angles and are hemispherical in shape.
8. A round tube port filter mechanism for heating and ventilation according to claim 1, wherein The auxiliary plate is fixedly connected to the inner wall of the circular tube, and the upper surface of the auxiliary plate has an arc-shaped structure.