CN201162693Y

CN201162693Y - Window shutter fan

Info

Publication number: CN201162693Y
Application number: CNU2008200001413U
Authority: CN
Inventors: 王�华; 聂福坚
Original assignee: GUANGDONG ZHAOQING DETON CO Ltd
Current assignee: GUANGDONG ZHAOQING DETON CO Ltd
Priority date: 2008-01-02
Filing date: 2008-01-02
Publication date: 2008-12-10
Anticipated expiration: 2018-01-02

Abstract

A louver fan comprises an impeller and a louver. The louver comprises a plurality of blades rotationally connected with a window frame and the blades are linked with a connecting rod. The rotating shaft of the impeller is jointed with an eccentric mechanism and the eccentric mechanism is provided with a push rod linked with the blades; the push rod is hinged with a swing rod and the rotating shaft of the swinging shaft is connected with the window frame of the louver; the swinging rod is linked with the connecting rod of the louver. The push rod of the eccentric mechanism of the utility model does not directly act on the blades, so the thickness of the blade can be made to be thin so as to reduce the weight and decrease the cost; in addition, the thin blade can be more anastomosous with the contact surface of the machine body when being closed, so the shock noise is very small.

Description

The venetian blind blower fan

Technical field

The utility model relates to the structure of venetian blind blower fan, particularly adopts centrifugal mechanism to open the venetian blind blower fan of venetian blind.

Background technique

Adopt centrifugal mechanism to open the venetian blind blower fan of venetian blind, all comprise a centrifugal mechanism that connects with the draught fan impeller rotating shaft, this centrifugal mechanism is provided with the push rod that a venetian blind with blower fan links.Its basic functional principle is that centrifugal mechanism produces centrifugal force with the impeller rotation, and centrifugal force is converted into the thrust of push rod, promotes blinds by push rod, and venetian blind is opened.Existing this venetian blind blower fan, for example the patent No. is 200420000233.3, name is called the utility model patent of " blower fan venetian blind recloser ", the push rod of its centrifugal mechanism is connected on the blinds.Because the thrust of push rod is bigger, so the blinds that is connected with push rod must be cooked thicklyer, usually can not be less than 2mm, in case the blinds distortion.Thicker blinds has not only increased weight but also has been unfavorable for reducing production costs.If blinds is too thick also can cause blinds to be closed the time and the faying surface of body has at interval, and thick and heavy blinds when closing owing to impact greatly, can produce bigger sound.

The model utility content

The purpose of this utility model is that the venetian blind blower fan that existing employing centrifugal mechanism is opened venetian blind is improved, and makes the thickness of blinds can do thinlyyer.

For this reason, venetian blind blower fan described in the utility model comprises impeller and venetian blind, venetian blind comprises that multi-disc is rotatably connected on the blinds on the window frame, the multi-disc blinds common with connecting rod interlock, be connected with centrifugal mechanism in the rotating shaft of impeller, this centrifugal mechanism is provided with a push rod that links with blinds, especially, a described push rod and a fork are hinged, and the rotating shaft of fork is connected on the window frame of venetian blind, the interlock of the connecting rod of described fork and blinds.When wheel rotation, the push rod of centrifugal mechanism promotes the fork swing, is driven the connecting rod of blinds again by fork, drives the multi-disc blinds by connecting rod at last and opens together.Because the thrust of push rod does not act directly on the blinds, so the thickness of blinds can be done thinlyyer.

The utility model has the advantages that and can do the thickness of blinds very little for example have only 0.5mm, not only alleviated weight but also reduced cost, and the blinds of thinner thickness when closing and the faying surface of body more identical, impact noise is very little.

Description of drawings

Fig. 1 is the utility model embodiment's a structural representation.

Embodiment

Referring to Fig. 1, the venetian blind blower fan comprises impeller 1 and the venetian blind that is made of multi-disc blinds 2.Multi-disc blinds 2 is rotatably connected on the window frame 3, and a common and connecting rod 4 interlocks.Blinds 2 and connecting rod 4 linkage manner shown in Figure 1 are to fix a fork 6 in the rotating shaft 5 of blinds 2, and fork 6 is hinged with connecting rod 4, can drive other blinds by fork 6 and connecting rod 4 and rotate together when wherein a slice blinds rotates.In addition, blinds 2 and connecting rod 4 linkage manner also can be directly that blinds 2 and connecting rod 4 is hinged.Rotating shaft at impeller 1 is connected with centrifugal mechanism 7, and this centrifugal mechanism is provided with a push rod 8 that links with blinds 2.Characteristics of the present utility model are that a push rod 8 and a fork 9 are hinged, and the rotating shaft 10 of fork 9 is connected on the window frame 3 of venetian blind, and fork 9 links with the connecting rod 4 of blinds.Fork 9 and connecting rod 4 linkage manner shown in Figure 1 are to fix a fork 11 in the rotating shaft 10 of fork 9 in addition again, and fork 11 is hinged with connecting rod 4, when push rod 8 promotes fork 9 drive rotating shafts 10 rotations, can move together by fork 11 drivening rods 4.In addition, fork 9 and connecting rod 4 linkage manner also can be fork 9 and fork 11 to be united two into one make same part, just be equivalent to fork 9 directly and connecting rod 4 hinged.The shape of fork 9 can adopt the shape of similar blinds 2, but thickness is thicker than blinds.

No matter adopt above-mentioned which kind of concrete structure, operating principle of the present utility model all is the thrust that the centrifugal force that centrifugal mechanism 7 produces with impeller 1 rotation is converted into push rod 8, promoting fork 9 by push rod 8 rotates, again by 4 motions of fork 9 drivening rods, drive multi-disc blinds 2 by connecting rod 4 at last and rotate together, venetian blind is opened.Because the thrust of push rod 8 does not act directly on the blinds 2, so the thickness of blinds 2 can be done very thinly.

Claims

1, a kind of venetian blind blower fan, comprise impeller and venetian blind, venetian blind comprises that multi-disc is rotatably connected on the blinds on the window frame, the multi-disc blinds is common to link with a connecting rod, the rotating shaft of impeller is connected with centrifugal mechanism, and this centrifugal mechanism is provided with a push rod that links with blinds, and it is characterized in that: a described push rod and a fork are hinged, the rotating shaft of fork is connected on the window frame of venetian blind, the interlock of the connecting rod of described fork and blinds.