Pitching mechanism of centrifugal type blower

A pitching mechanism and blower technology, which is applied in the direction of machines/engines, mechanical equipment, non-variable pumps, etc., can solve the problems of unable to meet the needs of users for large-angle air supply, no pitch function, and small air supply angle, etc., to achieve The effect of simple structure, simplified product structure and accurate angle positioning

Inactive Publication Date: 2013-06-05
MIDEA GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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  • Pitching mechanism of centrifugal type blower
  • Pitching mechanism of centrifugal type blower
  • Pitching mechanism of centrifugal type blower

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Embodiment Construction

[0018] like image 3 As shown, the limiting rib 33 is in the shape of a block, and is arranged at the neck corner where the flange 31 and the short ring cylinder 32 meet, and the end edge of the short ring cylinder 32 is provided with two symmetrical positioning bayonets. 35 and more than three installation bayonets 36 that are staggered with the positioning bayonet socket 35, corresponding to each installation bayonet 36, a screw mounting column 34 is provided on the inner surface of the short ring cylinder 32.

[0019] like Figure 5 As shown, the support shell 4 includes a back plate 41 and an arc-shaped half shell 42, wherein the lower part of the back plate 41 and the half shell 42 are connected together, and the middle and upper part is provided with a short ring cylinder 32 connected with the pitch support 3 Corresponding to the circular hole, the vertical diameter line of the circular hole is provided with a positioning rib 43 corresponding to the positioning bayonet ...

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PUM

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D25/10F04D29/00
Inventor 王伟光刘维亮彭建军邓建辉
Owner MIDEA GRP CO LTD
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