CN2714853Y

CN2714853Y - Fan with alterable blade structure

Info

Publication number: CN2714853Y
Application number: CN 200420064210
Authority: CN
Inventors: 陈元祥
Original assignee: SHUENN FARN VENTILATOR INDUSTRY Co Ltd
Current assignee: SHUENN FARN VENTILATOR INDUSTRY Co Ltd
Priority date: 2004-05-25
Filing date: 2004-05-25
Publication date: 2005-08-03
Anticipated expiration: 2014-05-25

Abstract

The utility model discloses a fan with an alterable blade structure, comprising a main body axially connected with the transmission axle of the fan motor. The external circumferential surface of the main body is provided with screw hole groups capable of arranging maximum amount of the fan blades in an equiangular way. Each screw hole group can assemble a fan blade by a screw assembly, so as to make the fan blade be assembled on the external circumferential surface in an equiangular way. Therefore, the assembling amount of the fan blades or the specification and the size of the fan blade can be altered freely according to requirement and under the principle that the amount of the fan blade is less than the maximum amount of the fan blade.

Description

A kind of fan of convertible blade structure

Technical field

The utility model relates to a kind of fan, specifically, relates to a kind of fan of the blade structure that can change the outfit according to need.

Prior art

Existing fan structure, by the body that motor shaft drives, several pieces flabellums extend from the distribution of the peripheral outwards isogonism of this body.The combination of body and flabellum can be screw locking, welding or one-body molded; No matter which kind of combination, flabellum quantity all are fixing and immutable, that is to say that if the mode of screw locking is established on the body and the corresponding screw number of flabellum quantity, one group of screw correspondence is in conjunction with a slice flabellum, lack one or many flabellums all can not; If welding or one-body molded, i.e. fixed fan number of sheets amount during fabrication.

Need be changeable often but use, when for example needing higher exhaust air rate, then need choose the body that has the quantity flabellum that suits the requirements in addition, can't therefore increase the cost of purchasing on a barter basis in the quantity of original body up conversion flabellum.

The model utility content

Main purpose of the present utility model, be by a kind of fan of convertible blade structure is provided, changing in the prior art can't be in the problem of the quantity of original body up conversion flabellum, can according to need be under the principle that is not more than volume flabellum the assembling quantity of conversion flabellum arbitrarily according to need, or change specification, the size of flabellum.

The utility model is realized by the following technical solutions.

A kind of fan of convertible blade structure comprises a body 10 that is coupling with the fan motor transmission shaft, and is the flabellum 20 that the isogonism group is located at these body 10 outer circumferential faces;

But these body 10 outer peripheral surfaces are provided with the screw group 11 that isogonism is provided with any amount flabellum 20;

The root that this flabellum 20 is connected with body 10 each left, right establishes two

wing plates

21,22, establishes the combined hole 231,232,233 corresponding with this screw group 11 on this two

wing plate

21,22, each screw group 11 and combinations thereof hole are with screw assembly 24 lockings.

The fan of aforementioned a kind of convertible blade structure, each screw group 11 has comprised three screws 111,112,113.

The fan of aforementioned convertible blade structure, arrange on three screw 111,112,113 three summits triangular in shape.

The fan of aforementioned convertible blade structure, first screw 111 is located on the outer peripheral surface near this body 10 tops 101, second screw 112 is located on the outer peripheral surface near this body 10 bottoms 102, and it is non-perpendicular relative with first screw 111, the 3rd screw 113 is located at the position near this body 10 outer peripheral surface central authorities, constitutes leg-of-mutton three summits with first and second screw 111,112.

The fan of aforementioned convertible blade structure, this flabellum 20 wherein a wing plate 21 establish can the combined hole 231,232 corresponding with first and second screw 111,112, another wing plate 22 is established can the combined hole 233 corresponding with the 3rd screw 113.

The fan of aforementioned convertible blade structure, wherein this body is organized down and is established a flow deflecting cone female cap 30.

The utility model compared with prior art has remarkable advantages and beneficial effect:

But the utility model is located at the screw group that is used for assembling flabellum on the body and is distributed in this body outer peripheral surface with the principle that isogonism is provided with volume flabellum, therefore can according to need be under the principle that is not more than volume flabellum the assembling quantity of conversion flabellum arbitrarily according to need, or change specification, the size of flabellum.Flabellum is sealed fixing with screw assembly and body, and therefore dismounting and package technique are very simple and quick.

Description of drawings

Fig. 1, the utility model three-dimensional exploded view;

Fig. 2, the utility model combination appearance figure;

The unfolded drawing of Fig. 3, the utility model body;

Fig. 4, another embodiment's combination appearance figure of the utility model;

Fig. 5, the utility model be embodiment's combination appearance figure again.

Embodiment

As described in Fig. 1, Fig. 2, the fan of a kind of convertible blade structure of the utility model comprises a body 10 that is coupling with fan motor transmission shaft (figure do not show), and is the flabellum 20 that the isogonism group is located at these body 10 outer circumferential faces;

As Fig. 1, Fig. 3, but these body 10 outer peripheral surfaces are provided with the screw group 11 that isogonism is provided with volume flabellum 20; Each screw group 11 has comprised three screws 111,112,113, wherein first screw 111 is located on the outer peripheral surface near this body 10 tops 101, second screw 112 is located on the outer peripheral surface near this body bottom 102, and it is non-perpendicular relative with first screw 111, the 3rd screw 113 is located at the position near this body 10 outer peripheral surface central authorities, constitutes leg-of-mutton three summits with first and second screw 111,112.

As Fig. 1, the root that this flabellum 20 is connected with body 10 each left, the right one extends and to establish two

wing plates

21,22, wherein establish can the combined hole 231,232 corresponding with first and second screw 111,112 for a

wing plate

21,22 of another wing plates are established can the combined hole 233 corresponding with the 3rd screw 113, each combined hole 231,232,233 is corresponding with each screw 111,112,113, and each with screw assembly 24 one by one the lock group fix, the mode that this flabellum 20 promptly is axioversion from this body (10) outwards isogonism distribute and extend.

As Fig. 4, Fig. 5, because but screw group 11 is distributed in this body 10 outer peripheral surfaces with the principle that isogonism is provided with volume flabellum 20, therefore can according to need be under the principle that is not more than volume flabellum the assembling quantity of conversion flabellum arbitrarily, or change specification, the size of flabellum.No matter why are assembling quantity, specification, must distribute with each flabellum 20 isogonism extends in body 10 excircles and the balance that keeps on the go is a principle.

Flabellum 20 is sealed fixing with screw assembly 24 and body 10, and therefore dismounting and package technique are very simple and quick.

As Fig. 1, this body can be organized for 10 times and establish a flow deflecting cone female cap 30, is reached the purpose of water conservancy diversion wind direction by the housing profile of its circular arc and taper.

It should be noted that at last: above embodiment only in order to the explanation the utility model and and the described technological scheme of unrestricted the utility model; Therefore, although this specification has been described in detail the utility model with reference to each above-mentioned embodiment,, those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the utility model; And all do not break away from the technological scheme and the improvement thereof of spirit and scope of the present utility model, and it all should be encompassed in the middle of the claim scope of the present utility model.

Claims

1, a kind of fan of convertible blade structure comprises a body (10) that is coupling with the fan motor transmission shaft, and is the flabellum (20) that the isogonism group is located at this body (10) outer circumferential face; It is characterized in that:

This body (10) but outer peripheral surface is provided with the screw group (11) that isogonism is provided with any amount flabellum (20);

The root that this flabellum (20) is connected with body (10) each left, right establishes two wing plates (21), (22), establish combined hole (231), (232), (233) corresponding with this screw group (11) on this two wing plate (21), (22), each screw group (11) locks with screw assembly (24) with the combinations thereof hole.

2, according to the fan of the described a kind of convertible blade structure of claim 1, it is characterized in that: each screw group (11) has comprised three screws (111), (112), (113).

3, according to the fan of the described convertible blade structure of claim 1, it is characterized in that: arrange on three screws (111), (112), (113) three summits triangular in shape.

4, according to the fan of the described convertible blade structure of claim 1, it is characterized in that: first screw (111) is located on the outer peripheral surface near this body (10) top (101), second screw (112) is located on the outer peripheral surface near this body (10) bottom (102), and it is non-perpendicular relative with first screw (111), the 3rd screw (113) is located at the position near this body (10) outer peripheral surface central authorities, constitutes leg-of-mutton three summits with first and second screw (111) (112).

5, according to the fan of the described convertible blade structure of claim 1, it is characterized in that: this flabellum (20) wherein a wing plate (21) establish can with first and second screw (111), (112) corresponding combined hole (231), (232), another wing plate (22) establish can be corresponding with the 3rd screw (113) combined hole (233).

6, according to the fan of the described convertible blade structure of claim 1, it is characterized in that: wherein this body is organized down and is established a flow deflecting cone female cap (30).