A negative pressure industrial ventilation fan with convenient wind direction adjustment

By designing protection and adjustment mechanisms in negative pressure industrial ventilation fans, the problem of difficulty in adjusting the air supply direction and wind tempo is solved, and dust is avoided, improving the practicality and air supply effect of the fan.

CN115013336BActive Publication Date: 2025-01-14SHAANXI HANGNENG POWER TECH CO LTD
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Patent Information

Application Number
CN202210804980.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-07-08
Publication Date
2025-01-14
Estimated Expiration
2042-07-08

AI Technical Summary

Technical Problem

Traditional negative pressure industrial ventilation fans cannot adjust the direction and temperament of the air supply, and lack protective measures, causing external dust and debris to enter the room, affecting the air supply effect.

Method used

A negative pressure industrial ventilation fan including a protective mechanism and a regulating mechanism is designed. The regulating mechanism prevents dust from entering through a dust frame and a dust net, and the regulating mechanism adjusts the air supply direction and wind tempo through a motor drive gear and worm system.

Benefits of technology

Multi-angle adjustment of the air supply direction and style is achieved, the practicality of the fan is improved, and the entry of external dust and debris is effectively avoided through protective measures, and the air supply effect is improved.

✦ Generated by Eureka AI based on patent content.

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    Figure CN115013336B_ABST
Patent Text Reader

Abstract

The present invention discloses a negative pressure industrial ventilation fan that is convenient for adjusting the wind direction, including a negative pressure fan, a protective mechanism is provided at the rear end of the negative pressure fan, and the protective mechanism includes a dustproof frame, a dustproof net, an L-shaped plate, a mounting plate and a threaded knob, the dustproof net is fixedly connected to the frame of the dustproof frame, and the L-shaped plate is fixedly connected to the upper and lower ends of the dustproof frame. The negative pressure industrial ventilation fan that is convenient for adjusting the wind direction described in the present invention belongs to the field of fans, and the second adjustment mechanism is set, and the second bevel gear drives the first bevel gear to rotate after the second motor drives the second bevel gear, and the worm is driven to rotate by the first bevel gear, and finally the rotation of the worm drives the second gear to rotate and complete the front and rear inclination adjustment operation of the air regulating plate, so that the negative pressure fan can be adjusted to realize the upward or downward air supply operation, and the wind speed can be adjusted by the closing degree between the air regulating plates.
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Citation Information

Patent Citations

  • Wind-direction-adjustable direct current fan

    CN107489632A

  • Wind guiding plate moving device and fan

    CN109139561A