CN86204031U - Electric fan with two sets of blades oscillated in the opposite direction - Google Patents

Abstract

The utility model belongs to a fan product in household appliances. In the utility model, two groups of blades are adopted to blow simultaneously in different directions, and the head shaking driving device drives the fan head to rotate within 180 DEG back and forth, thus, making the transversal blowing scope of the fan reach 360 DEG. Therefore, even in the situation when the fan is surrounded by people (or people around need cool wind), each people can feel cool wind at each direction. The utility model widens the range of use and increases the use value of floor fans, slide fans and desk fans.

Description

Electric fan with two sets of blades oscillated in the opposite direction

The utility model belongs to the fans product in the household electric appliance.

Electric fan is to use one of household electric appliance very widely in the daily life, and electric fan generally is made up of fan head, fan blade, supporting structure and control means.The principle of its air-supply is that the motor drives fan blade of fan head part rotates and quickens air flows or make the indoor and outdoor air exchange and reach the air-supply purpose.Electric fan is by the use characteristic branch: desk fan, ceiling fan, cabin fan, box fan, ventilating fan and special fan etc. are arranged, and stand fan, slide fan are then derived from by desk fan conversion base form.

Desk fan and the stand fan that derives from thereof, slide fan are to use utmost point fans product widely.Because the transmission device angle of swing of shaking the head of present desk fan, stand fan and slide fan has only 90 °, its horizontal blowing range also has only 90 ° when therefore using---and can not make the people around it all obtain breezy cool breeze, its using scope is under some influence, particularly when it has the people all to need cool breeze, more feels inconvenient all around.

The purpose of this utility model is to have invented a kind ofly to make people around it can both obtain the landing of cool breeze, tableland, desk fan.Enlarged land, the blowing range of tableland, desk fan, thereby increased land, the use value of tableland, desk fan.

The utility model is realized from following three aspects:

1, the transmission device angle of swing of shaking the head in the fan head changes 180 ° into by original 90 °.

2, add one the rotating shaft that drives the transmission device of shaking the head in the long electrical motor, make its axle head also can load onto fan blade.

3, two cover flabellums are installed in the two ends of motor rotary shaft respectively.When two cover flabellums were blown round about simultaneously, the transmission device of shaking the head drove fan head work and rotates back and forth motion for 180 °, makes the horizontal blowing range of the utility model reach ring-like 360 ° of circumference.

The utility model with originally land, tableland, desk fan compare horizontal blowing range and expand 360 ° to from 90 °.Around it, have under people's occasion of (or all needing cool breeze), more can show superiority of the present utility model.

For the utility model is described better, the utility model is further explained with Fig. 1, Fig. 2, Fig. 3.

Fig. 1 is the transmission device transmission principle figure (attached view) that shakes the head in the utility model.1 is driving gear (four), and 2 is driving gear (five), and 3 is kinematic link, and 4 is driving gear (six), and 5 is driving gear (seven).After transmission device is shaken the head in connection, motor rotary shaft is by driving gear () (two), (3) driving gear (four) is rotated, driving gear (four) → driving gear (five) plays decelerating effect, kinematic link passes to the unidirectional rotary motion of driving gear (five) to become 90 ° behind the driving gear (six) and rotates back and forth motion, the number of teeth of driving gear (seven) is half of driving gear (six), therefore when 90 ° in driving gear (six) work rotates back and forth motion, driving gear (seven) is done 180 ° and is rotated back and forth motion, rotates back and forth motion for 180 ° thereby drive whole fan head work.

Fig. 2 is a lengthening rotating shaft schematic representation (front view).6 is driving gear (one), and 7 is driving gear (two), and 8 is an end that extends in the lengthening rotating shaft.

Fig. 3 is 360 ° of air-supplies of peripheral annular schematic diagram (attached view).9 are the fan head, and 10 is fan blade, and 11 is air supply direction, and 12 do 180 ° for the fan head rotates back and forth moving direction.

Claims (3)

1, a kind of horizontal blowing range reaches the ring-like 360 ° flooring fan of circumference, and its feature exists:

Rotate back and forth 180 ° the transmission device of shaking the head,

The fan blade of two cover opposite direction air-supplies,

The motor lengthening rotating shaft of fan blade can both be adorned in two ends.

2, a kind of horizontal blowing range reaches the ring-like 360 ° tableland fan of circumference, and its feature exists:

Rotate back and forth 180 ° the transmission device of shaking the head,

The fan blade of two cover opposite direction air-supplies,

The motor lengthening rotating shaft of fan blade can both be adorned in two ends.

3, a kind of horizontal blowing range reaches the ring-like 360 ° desk fan of circumference, and its feature exists:

Rotate back and forth 180 ° the transmission device of shaking the head,

The fan blade of two cover opposite direction air-supplies,

The motor lengthening rotating shaft of fan blade can both be adorned in two ends.

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