CN202381394U

CN202381394U - Adjustable fan blade

Info

Publication number: CN202381394U
Application number: CN201120489391XU
Authority: CN
Inventors: 区觉晖
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-11-29
Filing date: 2011-11-29
Publication date: 2012-08-15
Anticipated expiration: 2021-11-29

Abstract

The utility model relates to an adjustable fan blade. The adjustable fan blade comprises a blade body and a blade root, wherein a spherical surface groove is arranged on the air outlet surface of the blade body, the groove is fully distributed on the air outlet surface of the whole blade body, the blade root is cylindrical, an annular position-limiting groove is arranged at the middle part on the outer side of the cylinder, scale marks for adjusting the angle of the blade body are arranged at the exposed end of the blade root, an anti-skid groove is arranged on the cylindrical surface of the blade root, and the blade root and the blade body are connected into a whole; and the adjustable fan blade further comprises a blade disc, and the blade disc comprises an upper blade disc and a lower blade disc, the upper blade disc and the lower blade disc have the same structure and are buckled and connected, a plurality of blade root connecting holes for fixing a fan are arranged at the joint of the upper blade disc and the lower blade disc, a rotating disc shaft hole is arranged at the middle part, and the upper blade disc and the lower blade disc are fixedly connected through a blade fixing hole via a screw. As the spherical surface groove is arranged on the air outlet surface of the blade body, wind force is centralized and noise is reduced; as resin material is adopted, the adjustable fan blade can realize corrosion resistance and light weight; the scale marks for adjusting the angle of the blade body are arranged at the exposed end of the blade root so as to facilitate precise adjustment of the angle of each blade; and the anti-skid groove is arranged on the cylindrical surface of the blade root, so that the fixing of the blade is firmer and more stable.

Description

A kind of adjustable blower fan fan blade

Technical field

The utility model relates to a kind of fan blade of blower fan, particularly relates to a kind of adjustable blower fan fan blade.

Background technique

Mostly the fan blade of present blower fan is thermoplastic and metal, uses thermoplasticity fan blade easy deformation, influences using effect; Use metallic material, fan blade is heavy, processing difficulties inconvenience moulding; Because the fan blade outlet air surface is a smooth surface at present, noise is bigger, and wind-force is concentrated inadequately; Fan blade angle is non-adjustable, can not suitably adjust as required.

Summary of the invention

The purpose of the utility model overcomes above-mentioned defective exactly, and a kind of adjustable blower fan fan blade is provided.

For achieving the above object, the utility model adopts following technological scheme:

A kind of adjustable blower fan fan blade is characterized in that comprising:

Blade is made up of blade and blade root, and the outlet air surface of blade is provided with spherical groove; Its groove is covered with the outlet air surface of whole blade; Described blade root is cylindrical, and the outer middle side part of cylinder is provided with the restraining groove of annular, and the blade root exposed junction is provided with the scale of blade angular adjustment; The cylndrical surface of blade root is provided with anti-slip tank, and blade root and blade are connected as a single entity;

The leaf dish; Is made up of last leaf dish and inferior lobe dish, it is identical and be fastened and connected that last leaf dish and inferior lobe are coiled structure, and its joint is provided with several fixedly blade root attachment holes of fan blade; The middle part is provided with the rotating disk axis hole; / 2nd of described its mesopore of blade root attachment hole is located at Ye Panshang, and second half hole is located on the inferior lobe dish, and the middle part of blade root attachment hole is provided with the projection of annular; Several blade root attachment holes are along the equal portion of periphery of last leaf dish and inferior lobe dish joint; The blade root of blade is connected with the blade root attachment hole and the adjustable angle of blade, and the leaf dish both sides of each attachment hole is provided with the vanes fixed hole of running through leaf dish and inferior lobe dish, and last leaf dish and inferior lobe are coiled to be screwed through the vanes fixed hole and be connected.

The material of described blade and leaf dish is wherein a kind of of epoxy resin, phenolic resin or other thermosetting resin, and its material internal is provided with fiber glass reinforcement.

The beneficial effect of the utility model: because the outlet air surface of blade is provided with spherical groove, when fan blade rotated, the spherical groove of fan blade produced little whirlpool, had played the effect of wind concentration and noise reduction; Because adopt resin material, not only anti-corrosion capacity is stronger, has also alleviated blower fan weight; Because the outer middle side part of the cylndrical surface of blade root is provided with the restraining groove of annular, makes blade be difficult for slippage, is convenient to angular adjustment; The blade root exposed junction is provided with the scale of blade angular adjustment, is convenient to the accurate adjustment of each blade angle; The cylndrical surface of blade root is provided with anti-slip tank, makes vanes fixed firm, stable more.

Description of drawings

Fig. 1 is one of them embodiment's of the utility model a schematic representation.

Fig. 2 is the fan blade front schematic view of the foregoing description.

Fig. 3 is the schematic perspective view of Fig. 2.

Fig. 4 is the local schematic representation that amplifies in the A place of Fig. 3.

Fig. 5 is the leaf dish schematic representation among Fig. 1 embodiment.

Fig. 6 is Fig. 5 embodiment plan view.

Fig. 7 is the schematic representation of Fig. 6 inferior lobe dish.

Fig. 8 is the plan view of Fig. 6 inferior lobe dish.

Fig. 9 is the schematic perspective view of inferior lobe dish.

Embodiment

Can find out that referring to figs. 1 through Fig. 9 the utility model comprises:

Blade 1 is made up of blade 12 and blade root 11, and the outlet air surface of blade is provided with spherical groove 13; Its groove is covered with the outlet air surface of whole blade, describedly goes out front cover, and promptly fan blade produces the one side of wind; Described spherical groove just groove is the part of sphere, is circular curve pocket, and described blade root 11 is cylindrical; The outer middle side part of cylinder is provided with the restraining groove 15 of annular, and the outside of blade root exposed junction is provided with the scale 14 of blade angular adjustment, and the cylndrical surface of blade root is provided with anti-slip tank 16; Its anti-slip tank divides into groups to be provided with, or the cylinder of whole cylinder all is provided with anti-slip tank, and blade root and blade mold pressing are one;

Leaf dish 2 is made up of last leaf dish 21 and inferior lobe dish 22, and it is identical and be fastened and connected that last leaf dish and inferior lobe are coiled structure; Its joint is provided with several fixedly blade root attachment holes 23 of fan blade, and the middle part is provided with rotating

disk axis hole

27, and 1/2nd of described its mesopore of blade root attachment hole is located at Ye Panshang; Second half hole is located on the inferior lobe dish, and the middle part of blade root attachment hole is provided with the projection 24 of annular, when connecting blade; Restraining groove 15 on the blade root of this projection and blade is connected; Play position-limiting action,, therefore be convenient to rotation adjusting because the junction all is circular; Several blade root attachment holes are along the equal portion of periphery of last leaf dish and inferior lobe dish joint; The blade root of blade is connected with the blade root attachment hole and the adjustable angle of blade, and the leaf dish both sides of each attachment hole is provided with the vanes fixed hole 25 (as shown in Figure 8) of running through leaf dish and inferior lobe dish, and last leaf dish and inferior lobe are coiled to be screwed through the vanes fixed hole and be connected.The middle part of leaf dish is provided with the axis hole 27 of blower fan, and its axis hole is used to connect the axle of blower fan, and this axle is connected with motor, or is connected with motor through belt pulley, and the axis hole next door is provided with fixing screw hole 26.

The material of described blade 1 and leaf dish 2 is wherein a kind of of epoxy resin, phenolic resin or other thermosetting resin, and its material internal is provided with fiber glass reinforcement, produces and adopts compression molding.

Claims

1. adjustable blower fan fan blade is characterized in that comprising:

2. a kind of adjustable blower fan fan blade according to claim 1 is characterized in that: the material of described blade and leaf dish is wherein a kind of of epoxy resin, phenolic resin or other thermosetting resin, and its material internal is provided with fiber glass reinforcement.