Pitching mechanism of centrifugal type blower

Abstract

The invention discloses a pitching mechanism of a centrifugal type blower, which comprises an air flue and a housing, wherein the air flue is arranged in the housing. The pitching mechanism of the centrifugal type blower is characterized by also comprising a pitching bracket and a supporting housing, wherein the pitching bracket is shaped as a short ring column body with an outward flange, the housing is provided with an inner flanged circular hole, the end edge of the inner flanged circular hole is provided with a limit groove, the short ring column body of the pitching bracket penetrates through the inner flanged circular hole from the inner side of the housing and is tightly matched with the inner flanged circular hole, a limit rib arranged at the inner side of the flange is matched inthe limit groove and enables the flange to be tightly attached on the end edge of the inner flanged circular hole, the end of the short ring column body is fixed on a support housing, and one end of the air flue, which is towards the pitching bracket, is tightly attached with the flanged end of the pitching bracket. By adopting the structure that the pitching bracket is matched and limited with the supporting housing and the air flue, the pitching mechanism effectively realizes the pitching regulation and the pitching angle stepless regulation of the centrifugal type blower, and has the advantages of simple structure, convenience for installation, stronger mechanical strength, accuracy and reliability in angle positioning and high maneuverability.

Description

technical field [0001] The invention relates to a centrifugal blower, in particular to a pitch mechanism of the centrifugal blower, which belongs to the improvement technology of the pitch mechanism of the centrifugal blower. Background technique [0002] At present, most of the centrifugal blowers on the market do not have a pitch function, and mainly rely on the swing of the air outlet grille to adjust the air supply angle. Due to the small air supply angle, it cannot meet the user's demand for large-angle air supply. Contents of the invention [0003] The purpose of the present invention is to provide a pitching mechanism of a centrifugal blower with accurate positioning, reliable large-angle air supply, strong operability and high mechanical strength in consideration of the above problems. [0004] The technical solution of the present invention is: a centrifugal blower pitching mechanism, including an air duct and a casing, wherein the air duct device is inside the c...

AI Technical Summary

Problems solved by technology

[0002] At present, most of the commercially available centrifugal blowers do not have a pitch function, and mainly rely on the swing of the air outlet grille to adjust the air supply angle. Due to the small air supply angle, it cannot meet the user's demand for large-angle air supply.

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