CN2036593U - Scavenger fan - Google Patents

Abstract

The utility model relates to a scavenger fan, which is suitable for the indoor/outdoor air exchanging and the directly object cooling down in manner of air blowing. The scavenger fan is formed by adding a tumbler on the ordinary scavenger fan, comprising a backed casing cover, a shield, an electrical machine with blades and a switch, which enables the utility model not only has the function of air exchanging, but also the function of blowing a soft, comfortable tridimensional revolving wind or a direction adjustable orienting wind in needed.

Description

Scavenger fan

The utility model is a kind of ventilation fan, and it belongs to the ventilation field, is applicable to the air exchange of indoor and outdoor and directly to the object cooling of drying.

Existing ventilation fan mainly is made up of standoff clamshell, shield, the motor that flabellum is housed and switch etc.That sells on the market all is this kind form.They can be used for getting rid of the oil smoke in the indoor dirty gas, particularly kitchen, or with in the fresh air suction chamber.But, arrive when summer, people indoor except that the need fresh air, also to use artificial wind directly human body or other article to be carried out radiating and cooling, and ventilation fan generally all is installed in the position that is higher than human body, and its wind direction that blows out is single and unalterable, thereby wind directly can not be blowed to the object that is on the move.Though have the available the problems referred to above that solve of various electric fans this moment, also exist respectively and install an electric fan again additional from considering uneconomical economically or the additional space that accounts for again because present tenant space is little; Besides the effective storage life of electric fan is short, makes above problem more outstanding.In addition, though removable electric fan is followed the tracks of the heat radiation object that need be on the move (as people during by a room to another room), but utmost point sense inconvenience.

The purpose of this utility model is that existing ventilation fan is improved, and it not only can be exchanged the air of indoor and outdoor, also can be to the object heat radiation of drying.

The purpose of this utility model can reach by blade-rotating is installed on ventilation fan.Axle sleeve in the blade-rotating can be assembled mutually movingly with the axle that has convex shoulder on being fixed on motor, adjust the rotating speed of blade-rotating by the nut on the adjustment axle.In addition, the device of braking blade-rotating is housed also on the clamshell of ventilation fan, is used for blade-rotating is fixed, make it wind be guided into the object of fixed position.

The utility model had both kept original ventilatory, again at people summer need use artificial wind to human body or other article dry cooling characteristics and increased the function of the directed wind of soft, comfortable stereo rotating wind of wind-force or adjustable direction.Make people when office work, can use the utility model cooling of drying when particularly in the kitchen, being engaged in housework (as washing, cut the dish, wash rice, rinse bowl, laundry etc.) easily, to alleviate or to exempt scorching sense.Simultaneously, make and both used conveniently, do not occupy additional space again owing to the advantage with ventilation fan and axial flow fan with flow guide is blended together; And one-object-many-purposes, make the best use of everything, improved the use value of ventilation fan effectively, cause it to have high price performance.

Describe concrete structure of the present utility model and working condition in detail below in conjunction with accompanying drawing.

Fig. 1 is a basic structure schematic representation of the present utility model.

With reference to Fig. 1, the motor 6 that flabellum 11 is housed is fastened on the support 10 of clamshell 9, but the shield 12 of bi-directional movable, the switch 13 of control motor 6 forward and reverse runnings also are housed on the clamshell 9.Have an end to have convex shoulder on the motor 6 and the other end is the axle 4 of screw thread, it matches with axle sleeve 3 in the blade-rotating 1, and its matching gap is for movingly; Axle sleeve 3 cover upper spindles 4 backs are screwed on nut 5, can regulate the rotating speed of blade-rotating 1 by the compaction degree of adjusting 5 pairs of blade-rotatings 1 of nut.For wind direction can be fixed very easily, the device 7 of preventing blade-rotating 1 to rotate is housed on clamshell 9, device 7 is subjected to coupled backguy 8 controls.

When need are dried cooling to indoor object, switch 13 can be in corresponding on-state.This moment, motor 6 drive flabellums 11 rotated, make outdoor air press off and rush at bi-directional movable shield 12 indoor, meet blade-rotating 1 immediately, because the page or leaf sheet 2 in the blade-rotating 1 is all arranged by certain angle (having angle with the center line of motor 6), so the outdoor air that is promoted by flabellum 11 had both promoted blade-rotating 1 rotation, sent the soft three-dimensional wind of wind-force from blade-rotating 1 sense of rotation again, if only need to fixing object blowing, as long as then draw a pull-down line 8, braking device 7 actions are got final product.

Claims (3)

1, a kind of ventilation fan, by being made up of clamshell 9, the shield 12 of support 10, the motor 6 that flabellum 11 is housed and switch 13, feature of the present utility model is also with blade-rotating 1.

2, ventilation fan according to claim 1 is characterized in that blade-rotating 1 matches with the axle that has convex shoulder 4 on the motor 6 by the axle sleeve on it 3, and its matching gap also is equipped with nut 5 for movingly on the axle 4.

3, ventilation fan according to claim 1 and 2 is characterized in that being equipped with on the clamshell 9 braking device 7, is connected with backguy 8 on the device 7.

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