Axial flow ventilator or fan with automatic oscillating mechanism

Abstract

The invention relates to the technical field of axial flow ventilators (fans) and discloses an axial flow ventilator or fan with an automatic oscillating mechanism. The axial flow ventilator or fan comprises a base, three sectional type wind cylinder units and four connecting parts. The four connecting parts are symmetrically distributed on the exteriors of the sectional type wind cylinder units in pairs. Guide blades are fixedly connected to the right side of the sectional type wind cylinder unit on the right side. According to the axial flow ventilator or fan with the automatic oscillating mechanism, a sectional type wind cylinder is formed by assembling the sectional type wind cylinder units and the connecting parts, so that airflow does not rotate by a long distance in the wind cylinder, and generation of violent airflow noise and vibration is avoided. Meanwhile, when an installing position is limited, input wind can be supplemented through gaps among the disconnected type wind cylinder units. A sliding groove is formed in each connecting part, the sectional type wind cylinder units are provided with sliding blocks matched with the sliding grooves, and thus the sectional type wind cylinder units slide between the four connecting parts conveniently through the sliding blocks and the sliding grooves.

Description

technical field [0001] The invention relates to the technical field of axial flow fans (fans), in particular to an axial flow fan or fan with an automatic head shaking mechanism. Background technique [0002] Axial flow fans are widely used for ventilation in factories, mines, tunnels, cooling towers, vehicles and ships, and can also be used for ventilation or enhanced heat dissipation in metallurgy, chemical industry, light industry, food, medical equipment, mechanical equipment and civil buildings. It can also be used as a free fan. [0003] Existing axial flow fans generally set the impeller in a cylindrical air duct. Since the air flow rotates strongly in the air duct, when it is used as a free fan, it will generate a lot of airflow noise and vibration. At the same time, the blown out Due to the absence of duct constraints, the airflow quickly scatters, showing the phenomenon that there is wind at a short distance, and the wind speed drops sharply at a little distance, ...

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Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides an axial flow fan or fan with an automatic shaking head mechanism, which has the advantages of low noise, small vibration, large air volume, long range, easy maintenance and automatic head shaking, etc., and solves the problem of traditional axial flow. When the flow fan is used as a free fan, it will appear that the noise is large, the vibration is large and the range is short, and when the installation position is limited, it is not easy to maintain and show the situation of insufficient air volume. At the same time, the existing axial flow fan is not easy to adjust its Use orientation so that it has certain limitations

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