Centrifugal fan with air volume of exhaust pipe adjustable

A centrifugal fan and duct air volume technology, applied in mechanical equipment, machines/engines, liquid fuel engines, etc., can solve the problems of dust backflow, small application range, shortening the service life of fans, etc., to extend the service life and have a wide range of applications , good effect of adjustment

Inactive Publication Date: 2019-01-29
JIANGSU SHUANGJU FANS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The air volume at the air outlet pipe of the existing centrifugal fan cannot be adjusted, and the scope of application is small. At the same time, when not in use, the

Method used

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  • Centrifugal fan with air volume of exhaust pipe adjustable

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Example Embodiment

[0009] The specific content of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0010] like figure 1 As shown in the figure, the centrifugal fan that can adjust the air volume of the air outlet includes: a casing 1, an air inlet 2 arranged on the side of the casing 1, and an air outlet 3 arranged on the end face of the casing 1. 3 is provided with a large semi-circular slide rail 4, inside the upper end of the large semi-circular slide rail 4, an upper arc baffle 6 is slid through the upper slider 5, and inside the lower end of the large semi-circular slide rail 4 A lower arc-shaped baffle plate 8 is slidably arranged by the lower slider 7 , an upper arc-shaped toothed plate 9 is arranged inside the upper arc-shaped baffle plate 6 , and a lower arc baffle plate 8 is arranged inside the lower arc-shaped baffle plate 8 A toothed plate 10, a first upper gear 12 meshing with the upper arc toothed plate...

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Abstract

The invention discloses a centrifugal fan with the air volume of an exhaust pipe adjustable. The centrifugal fan comprises a shell, an air inlet formed in the lateral face of the shell and the exhaustpipe arranged on the end face of the shell; the exhaust pipe is provided with a large semicircular sliding rail; an upper arc baffle is slidably arranged in the upper end of the large semicircular sliding rail through an upper sliding block; a lower arc baffle is slidably arranged in the lower end of the large semicircular sliding rail through a lower sliding block; an upper arc toothed disc is arranged on the inner side of the upper arc baffle; a lower arc toothed disc is arranged on the inner side of the lower arc baffle; the upper end of the exhaust pipe is rotationally provided with a first upper gear engaged with the upper arc toothed disc through a first upper rotary shaft; the first upper rotary shaft is provided with a first upper driven chain wheel; and the lower end of the exhaust pipe is rotationally provided with a first lower gear engaged with the lower arc toothed disc through a first lower rotary shaft.

Description

technical field [0001] The invention relates to a fan, in particular to a centrifugal fan capable of adjusting the air volume of an air outlet pipe. Background technique [0002] The fan is a machine that relies on the input mechanical energy to increase the gas pressure and discharge the gas. It is a driven fluid machine. At present, the fan is widely used in various fields. The air volume at the air outlet pipe of the existing centrifugal fan cannot be adjusted, and the scope of application is small. At the same time, when not in use, the dust is easy to flow back from the air outlet, resulting in serious dust accumulation inside the fan, troublesome cleaning, and easy to shorten the use of the fan. life. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a centrifugal fan with good adjustment effect and adjustable air volume of the air outlet pipe. [0004] In order to solve the above-mentioned technical proble...

Claims

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Application Information

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IPC IPC(8): F04D25/08F04D29/42F04D27/00F04D29/70
CPCF04D25/08F04D27/002F04D29/4206F04D29/4226F04D29/703
Inventor 孙广文孙一根
Owner JIANGSU SHUANGJU FANS
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