CN201218240Y

CN201218240Y - Window shutter of pneumatic circular axial fan

Info

Publication number: CN201218240Y
Application number: CNU2008200481815U
Authority: CN
Inventors: 梁兆兴
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-05-23
Filing date: 2008-05-23
Publication date: 2009-04-08
Anticipated expiration: 2018-05-23

Abstract

The utility model discloses a louver of a pneumatic round axial flow fan, which is used for shielding wind-blown sand, rainwater and flurry. The window blind comprises a louver body and louver blades, wherein the louver body is a circular louver body, the louver blades comprise an upper and a lower fixed blades and movable blades, both ends of the movable blades axially extend into the corresponding holes arranged at the internal wall of the circular louver body. The louver is characterized in that the middle part of the wind-inlet side of each movable blade is rotationally and movably connected with a movable rod. When the fan is under operation, all the movable blades are opened simultaneously under the action of the movable rods; when the fan stops working, all the movable blades are closed simultaneously under the action of the movables rods and the dead weight, thus, the movable blades can not frequently generate collision noise; not only the purpose of ventilation, wind-blown sand, rainwater and flurry shielding is realized, but also a relatively quieter operation environment is maintained.

Description

Pneumatic circular shaft flow fan venetian blind

Technical field

The utility model relates to a kind of venetian blind, relate in particular to a kind ofly be used to keep the sand in check, the pneumatic circular shaft flow fan venetian blind of rainwater, wind and snow.

Background technique

Relief opening is exposed to outdoor ventilation system all has application in a lot of occasions, such as factory's air exchange system, central air-conditioning system etc., because relief opening is exposed to outdoor, so, if there are not suitable quarantine measures, then might waft into rainwater, dust etc., especially at northern area from ventilated port, probably waft into dust storm, wind and snow etc., may cause like this to the damage of blower fan or to the damage of interior decoration.

In the ventilation system of existing circular air port, major part does not all have to take quarantine measures in the air port, also have and install the spire venetian blind in the air port additional, its defective is: the former may cause to the damage of blower fan or to the damage of interior decoration into dust storm, rainwater, wind and snow etc. because of wafing; The moving vane of latter's venetian blind is independent separately and thinner, in the ventilation process, understand continually collision mutually between each blade and send bigger noise, even do not having under the situation of ventilating, also may make collision mutually continually between each blade because of the wind of outside, thereby send bigger noise.

Summary of the invention

The purpose of this utility model provides a kind of pneumatic circular shaft flow fan venetian blind of realizing each blade interlock with regard to being in order to address the above problem.

To achieve these goals, the utility model is in the following ways:

The utility model comprises forms and window leaf, wherein, described forms are circular forms, described window leaf comprises upper and lower stator blade and moving vane, the shaft extension at described moving vane two ends is gone in the corresponding hole of described circular forms inwall, and the middle part of the inlet air side margin of all described moving vanes all is connected with the mode of movable rod by rotatable flexible connection.

During blower fan work, under the effect of movable rod, all moving vanes will be opened simultaneously; When blower fan quits work, under the effect of movable rod, all moving vanes will be closed under the deadweight effect simultaneously simultaneously.Like this, moving vane will can frequently not send the sound of mutual collision.

As preferred forms of the present utility model, on described movable rod, be provided with and be convenient to the notch that described movable rod moves up and down with the corresponding part of the inlet air side margin of described moving vane.Be convenient to the accessible motion of described movable rod like this.

The corresponding part of axle with its two ends on described moving vane is provided with " V " connected in star, and the formed axis of axle at described moving vane two ends is the bottom land of described " V " connected in star.Because forms of the present utility model are circular, if above-mentioned " V " connected in star is not set, the moving vane that is in circular forms lower half portion will can not be opened fully because of the conflict of circular forms inwall, so, being provided with of " V " connected in star helps moving vane and is opened fully to 90 degree, reaches better exhaust effect.

The beneficial effects of the utility model are:

As from the foregoing, install additional exhaust ventilation mouth of the present utility model can reach better ventilate and keep the sand in check, the effect of rainwater, wind and snow, can keep a more quiet working environment again.

Description of drawings

Fig. 1 is the perspective view of the utility model when ventilating;

Fig. 2 is the main TV structure schematic representation of the utility model when ventilating;

Fig. 3 is the right TV structure schematic representation of the utility model when ventilating;

Fig. 4 is the structure for amplifying schematic representation of any one moving vane among Fig. 3.

Embodiment

Below in conjunction with accompanying drawing the utility model is done further specific descriptions:

As Fig. 1, Fig. 2 and shown in Figure 3, the utility model comprises forms 1 and window leaf, wherein, forms 1 are circular forms, the window leaf comprises stator blade 8, following stator blade 6 and moving vane 2, the axle 4 at moving vane 2 two ends stretches in the corresponding hole of inwall of circular forms 1, and the middle part of the inlet air side margin of all moving vanes 2 all is connected with the mode of movable rod 7 by rotatable flexible connection.

As shown in Figure 1, on movable rod 7, be provided with and be convenient to the notch 5 that movable rod 7 moves up and down with the corresponding part of the inlet air side margin of moving vane 2.Be convenient to the accessible motion of movable rod 2 like this.

As shown in Figure 1 and Figure 4, the corresponding part of axle with its two ends on moving vane 2 is provided with " V " connected in star 3, and the formed axis of axle at moving vane 2 two ends is the bottom land of described " V " connected in star.Because forms of the present utility model are circular, if above-mentioned " V " connected in star is not set, the moving vane that is in circular forms lower half portion will can not be opened fully because of the conflict of circular forms inwall, so, being provided with of " V " connected in star helps moving vane and is opened fully to 90 degree, reaches better exhaust effect.

During blower fan work, under the effect of movable rod 7, all moving vanes 2 will be opened simultaneously; When blower fan quits work, under the effect of movable rod 7, all moving vanes 2 will be closed under the deadweight effect simultaneously simultaneously.Like this, moving vane will can frequently not send the sound of mutual collision.

Of the present utility modelly focus on providing a kind of pneumatic circular shaft flow fan venetian blind that movable rod is installed between each activity,, then all should be considered as invading right of the present utility model if only change the shape or the size of forms or blade.

Claims

1, a kind of pneumatic circular shaft flow fan venetian blind, comprise forms and window leaf, wherein, forms are circular forms, the window leaf comprises upper and lower stator blade and moving vane, the shaft extension at moving vane two ends is gone in the corresponding hole of circular forms inwall, it is characterized in that: the middle part of the inlet air side margin of all moving vanes (2) all is connected with the mode of movable rod (7) by rotatable flexible connection.

2, pneumatic circular shaft flow fan venetian blind according to claim 1 is characterized in that: go up and the corresponding part of the inlet air side margin of moving vane (2) is provided with and is convenient to the notch (5) that movable rod (7) moves up and down at described movable rod (7).

3, pneumatic circular shaft flow fan venetian blind according to claim 1, it is characterized in that: the corresponding parts of axle last at described moving vane (2) and its two ends are provided with " V " connected in star, and the formed axis of axle at described moving vane (2) two ends is the bottom land of described " V " connected in star.