CN202811536U

CN202811536U - Exhaust fan with louvre blades

Info

Publication number: CN202811536U
Application number: CN 201220169377
Authority: CN
Inventors: 李才
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-04-16
Filing date: 2012-04-16
Publication date: 2013-03-20
Anticipated expiration: 2022-04-16

Abstract

The utility model relates to ventilating equipment, in particular to an exhaust fan with louvre blades. The exhaust fan with the louvre blades comprises a fan (2), a driving motor (3), linkage rods (4), louvre blades (5) and linkage devices (6), which are arranged on a framework (1) respectively, and the exhaust fan with the louvre blades is characterized in that a wind blade (7) rotating oppositely to the louvre blades (5) is arranged on the linkage devices (6). The exhaust fan with louvre blades is not only energy-saving and environmentally-friendly, but also high in stability.

Description

A kind of air bells exhauster with louvre blade

Technical field

The utility model relates to a kind of ventilation device, particularly in the air bells exhauster with louvre blade.

Background technique

The at present opening and closing of air bells exhauster, favourablely control with motor gear, also utilize centrifugal mechanism (comprising centrifugal hammer or centrifuge arm etc.) as power, louvre blade is opened or closed, number be that " anti-outer high wind greenhouse blinds blower fan " utility model patent of 01252447.7 and the patent No. are " with the air bells exhauster of blinds " model utility of 200420103585.1 such as China Intellectual Property Office's issued patents, need to be connected in power supply with the motor gear control mode in this dual mode, cost is high; Utilize the centrifugal mechanism mode, although do not need electric control, complex structure, the working stability performance is poor, needs the different centrifugal mechanism of blower fan customization to various models, is not suitable for producing by batch.

The model utility content

Deficiency is opened or closed to the utility model automatically for the louvre blade that solves existing blower fan, and a kind of brand-new blinds air bells exhauster is provided.

A kind of air bells exhauster with louvre blade comprises blower fan, drive motor, continuous motion stem, louvre blade and continuous action device on the framework, is provided with on the described continuous action device and the counter-rotational wind guiding blade of louvre blade.

Above-mentioned continuous action device includes fixed base, rotating shaft, push-and-pull pivoted arm and link arm, described rotating shaft is installed on the fixed base, push-and-pull pivoted arm one end is fixed in the rotating shaft, the other end is connected in continuous motion stem, link arm is fixed in the rotating shaft and links with the push-and-pull pivoted arm, and described wind guiding blade is installed on the link arm.

Above-mentioned wind guiding blade is an arc shaped blade or becomes 15-35 ° of overturning angle blade.

Above-mentioned push-and-pull pivoted arm drives the transmission arm of louvre blade closure or openness for promoting continuous motion stem.

The beneficial effects of the utility model

1, because the utility model adopts wind guiding blade as the automatic unlatching of control louvre blade or closes, need not power supply control, not only energy-conserving and environment-protective, and also stability is strong.

2, since the utility model adopt wind guiding blade as the automatic unlatching of control louvre blade or close, at the air bells exhauster of various models, all can be got final product by a pair of unified continuous action device like this, need not to carry out customizing device according to the different model air bells exhauster, cost can be saved, also manufacturing efficiency can be provided.

Description of drawings

Fig. 1 is structural representation of the present utility model.

Fig. 2 is continuous action device structural representation of the present utility model.

Fig. 3 is fundamental diagram of the present utility model.

Fig. 4 is the working state figure of opening louvre blade after the utility model continuous action device is connected with wind guiding blade.

Fig. 5 is the utility model continuous action device and the working state figure of closing louvre blade after wind guiding blade is connected.

Embodiment

Comprise blower fan 2, drive motor 3, continuous motion stem 4, louvre blade 5 and continuous action device 6 on the framework 1 such as Fig. 1 to a kind of air bells exhauster with louvre blade shown in Figure 5.Described continuous motion stem 4 is installed on the groove 11 of framework 1 both sides setting, and what be provided with installation louvre blade 5 on the continuous motion stem 5 changes hands 41.Be provided with on the continuous action device 6 and louvre blade 5 counter-rotational wind guiding blades 7, this wind guiding blade 7 is an arc shaped blade or the blade that becomes 15-35 ° of inclination, continuous action device 6 includes fixed base 61, rotating shaft 62, push-and-pull pivoted arm 63 and link arm 64, described rotating shaft 62 is installed on the fixed base 61, push-and-pull pivoted arm 63 1 ends are fixed in the rotating shaft 62, the other end is connected in continuous motion stem 4, and push-and-pull pivoted arm 63 swings up and down the transmission arm that drives louvre blade 5 closure or openness for promoting continuous motion stem 4.Described link arm 64 is fixed in the rotating shaft 62 and links with push-and-pull pivoted arm 63, and wind guiding blade 7 is installed on the link arm 64.

Concrete working principle is: when starting air bells exhauster, blower fan blows louvre blade 5, opening louvre blade 5 opens through continuous motion stem 4 drive wind guiding blades 7 simultaneously, because wind guiding blade 7 is arranged to arc or is become 15-35 ° of inclination, this purpose of being arranged to arc or inclination makes its wind that louvre blade is blown afloat in order to blow to the wind guiding louvre blade 5 of wind guiding blade 7, reaches the effect that the louvre blade wide-angle is opened, need not other power, as shown in Figure 3 and Figure 4.Otherwise, stopping the blower fan running, louvre blade 5 promotes wind guiding blade 7 closures, as shown in Figure 5 simultaneously by closed under the gravity of self.

Claims

1. air bells exhauster with louvre blade, comprise blower fan (2), drive motor (3), continuous motion stem (4), louvre blade (5) and continuous action device (6) on the framework (1), it is characterized in that: be provided with on the described continuous action device (6) and the counter-rotational wind guiding blade of louvre blade (5) (7).

2. a kind of air bells exhauster with louvre blade according to claim 1, it is characterized in that: described continuous action device (6) includes fixed base (61), rotating shaft (62), push-and-pull pivoted arm (63) and link arm (64), described rotating shaft (62) is installed on the fixed base (61), push-and-pull pivoted arm (63) one ends are fixed in the rotating shaft (62), the other end is connected in continuous motion stem (4), link arm (64) is fixed on upper and push-and-pull pivoted arm (63) interlock of rotating shaft (62), and described wind guiding blade (7) is installed on the link arm (64).

3. a kind of air bells exhauster with louvre blade according to claim 1 is characterized in that: described wind guiding blade (7) is an arc shaped blade or becomes 15-35 ° of overturning angle blade.

4. a kind of air bells exhauster with louvre blade according to claim 2 is characterized in that: described push-and-pull pivoted arm (63) drives the transmission arm of louvre blade (5) closure or openness for promoting continuous motion stem (4).