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Fan blade mechanism for garden blower and garden blower

A hair dryer and fan blade technology, which is applied to parts of pumping devices for elastic fluids, machines/engines, mechanical equipment, etc., can solve the problem of high noise decibels, reduce decibels, and improve user experience.

Pending Publication Date: 2021-12-03
POSITEC POWER TOOLS (SUZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The fan mechanism will emit various noises caused by different types of reasons at high speeds. Although there are various ways to reduce the noises caused by different types of reasons in the prior art, after reduction The decibels of the noise are still high, and still need to be further reduced to better meet user needs

Method used

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  • Fan blade mechanism for garden blower and garden blower
  • Fan blade mechanism for garden blower and garden blower
  • Fan blade mechanism for garden blower and garden blower

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Embodiment Construction

[0030] The details of the present invention can be understood more clearly with reference to the accompanying drawings and the description of specific embodiments of the present invention. However, the specific embodiments of the present invention described here are only for the purpose of explaining the present invention, and should not be construed as limiting the present invention in any way. Under the teaching of the present invention, the skilled person can conceive any possible modification based on the present invention, and these should be regarded as belonging to the scope of the present invention. It should be noted that when an element is referred to as being “disposed on” another element, it may be directly on the other element or there may also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "mounted", "connec...

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Abstract

The invention discloses a fan blade mechanism for a garden blower and the garden blower, and relates to the field of garden tools. The fan blade mechanism comprises a hub part and fan blades, wherein the hub part can rotate around a rotating shaft; the fan blades are arranged on the hub part; each fan blade is provided with a leeward side, a windward side, a front edge, a rear edge and a top edge; each leeward side and the corresponding windward side are opposite; each front edge and the corresponding rear edge are opposite to each other; each front edge is located in the air incoming flow direction; each rear edge is located in the air flowing direction relative to the corresponding front edge; each top edge is located at the end away from the hub part; a first transition part of a curved surface which is close to the hub part from each top edge is arranged at the joint of each top edge and the corresponding front edge; the cross section of each first transition part is in an arc shape; and the radius length of the arc-shape of each first transition part ranges from 0.5 mm to 5 mm. According to the fan blade mechanism for the garden blower and the garden blower provided by the invention, noise generated when airflow is separated from vortex can be effectively reduced.

Description

technical field [0001] The invention relates to the field of garden tools, in particular to a blade mechanism for a garden blower and the garden blower. Background technique [0002] The blower belongs to a conventional garden tool, and it is mainly used for blowing away debris such as fallen leaves, road dust, accumulated water, and accumulated snow. The blower includes a blade mechanism and a motor that drives the blade mechanism to rotate. Since the blower needs to be easy for the staff to carry and hold, the volume of the fan blade mechanism will not be too large; it needs to generate a wind with high pressure and wind speed to meet the needs of blowing, so the fan blade mechanism with a small volume When working, it must be at a very high speed to generate wind power that meets the requirements. The fan mechanism will emit various noises caused by different types of reasons at high speeds. Although there are various ways to reduce the noises caused by different types ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/32F04D29/38F04D29/66E01H1/08
CPCF04D29/325F04D29/388F04D29/666F04D29/667E01H1/0809
Inventor 刘正伟江雯雯肖海波焦石平杨庆辉
Owner POSITEC POWER TOOLS (SUZHOU) CO LTD
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