一种可增加稀释风量的管道
By installing a cleaning plate and a tilting frame inside the duct, and utilizing the collaborative work of the drive and transmission components, the problem of dust accumulation on the inner wall of the duct is solved, achieving a seamless switch between efficient cleaning and ventilation, and ensuring the efficient operation and safety of the ventilation system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAANXI BEIYUAN CHEM GROUP
- Filing Date
- 2025-08-13
- Publication Date
- 2026-07-17
AI Technical Summary
Dust buildup on the inner walls of ducts increases air resistance, reduces ventilation efficiency, and may breed microorganisms and release pollutants, which are difficult to remove effectively with existing technologies.
A duct designed to increase the volume of diluted air is used. By installing a cleaning plate and a flipping frame inside the duct, and using the collaborative work of the drive and transmission components, the cleaning plate arches up to fit the inner wall to scrape away dust when needed, and the flipping frame flips up to fit the inner wall without disturbing the airflow. The airflow is precisely controlled in conjunction with the flow control valve.
It achieves efficient cleaning of the inner wall of the air duct, avoids long-term dust accumulation, maintains the efficient operation of the ventilation system, balances ventilation efficiency and safety, and ensures seamless switching between cleaning and ventilation functions.
Smart Images
Figure CN224516981U_ABST
Abstract
Claims
1. A duct with increased dilution air, comprising a duct (1), characterized in that, There are two ducts (1), and each of the two ducts (1) is fixedly connected to a connecting pipe (2) by a flange on one side. A shut-off valve (3) for controlling the airflow is fixedly installed in the inner cavity of the connecting pipe (2). Each of the air ducts (1) has a cleaning plate (4) slidably installed in its inner cavity, which is used to remove dust adhering to the inner wall of the air duct (1). There are two sets of cleaning plates (4), and a drive assembly (5) is installed at the bottom of each set of cleaning plates (4). The drive assembly (5) can control the two sets of cleaning plates (4) to remain horizontal in the non-working state to reduce wind resistance, while in the working state, they are arched to make the outer wall of the cleaning plate (4) fit against the inner wall of the air duct (1). Each of the air ducts (1) has a rotating frame (6) rotatably installed inside its cavity. An auxiliary fan blade (7) for driving airflow is fixedly installed inside the rotating frame (6). A transmission assembly (8) is fixedly installed on the inner wall of the air duct (1) and is rotatably connected to the outer wall of the rotating frame (6). With the help of the transmission assembly (8), when the cleaning plate (4) arches up, the rotating frame (6) is driven to rotate accordingly, so that it fits against the inner wall of the air duct (1) to avoid the auxiliary fan blade (7) interfering with the airflow generated by the movement of the cleaning plate (4).
2. The duct of claim 1, wherein, The drive assembly (5) includes a threaded shaft (501), two of which are fixedly connected to the inner wall of the air duct (1) via connecting blocks. A movable block (502) is fitted on the outer surface of each threaded shaft (501), and the movable block (502) is rotatably connected to the cleaning plate (4).
3. The duct of claim 2, wherein, The air duct (1) is fixedly installed with a motor (503) for providing driving power. The output end of the motor (503) is fixedly connected to one of the threaded shafts (501). Both of the threaded shafts (501) are fixedly fitted with pulleys (504) at the ends near the motor (503), and the two pulleys (504) are rotatably connected by a belt.
4. The duct of claim 1, wherein, The transmission assembly (8) includes a base (801), which is fixedly connected to the inner wall of the air duct (1). A rotating rod (802) and a flipping rod (803) are rotatably connected to the inner wall of the base (801). The corresponding ends of the rotating rod (802) and the flipping rod (803) are hinged to each other, and the ends of the two rods that are far apart are fixedly connected to a positioning bolt (804). A tension spring (805) is fixedly connected between the two positioning bolts (804).
5. The duct of claim 4, wherein, Two limiting bolts (809) are fixedly installed on the inner wall of the base (801), and the two limiting bolts (809) are located on both sides of the rotating rod (802) to limit the rotation range of the rotating rod (802).
6. A duct capable of increasing dilution air volume according to claim 1, characterized in that, The shut-off valve (3) includes a valve plate (301), which has multiple plates and is located in the inner cavity of the connecting pipe (2). Each valve plate (301) has a connecting piece (302) fixedly connected to its bottom surface. A drive plate (303) for driving the valve plate (301) to rotate is installed on one side of the valve plate (301), and the drive plate (303) is rotatably connected to each connecting piece (302).