CN2166253Y - Powerless wind exhauster - Google Patents

Abstract

The utility model relates to a powerless wind exhauster which is composed of a base, a cover frame, combined sheet, a protecting sheet, a positioning shaft body, a positioning rod and a plurality of turbine blades. A central shaft is fixed to the base, and the central shaft is provided with a position limiting groove. The turbine blades, the combined sheet, a locking bolt, a loose-proof cushion sheet, a connecting block, a rotary centering rod and a rotary barrel are fixed into the integration in a screwing way. A fixedly embedded screw rod is used for preventing separation. The cone point of the centering rod is rotated, and the top is positioned in the central cone groove of the central shaft. Thus, the whole contact is only the cone point, and therefore, the friction is reduced to the minimum. Only slightly air flow can be used as the power to promote the blades to rotate, and thus, the utility model can achieve the air exhaust effect.

Description

Powerless wind exhauster

The utility model relates to a kind of air exhausting device, particularly a kind of unregulated power air exhausting device.

The traditional type air draft so needs electrification for to use power-actuated induced draft fan, power consumption, installation inconvenience; Also having or not electric drive person, be to establish to make a shape ventilation duct, but its exhaust effect is not splendid, and no matter be the ventilation duct of electric power induced draft fan, unregulated power, when the situation of raining, may cause entering of rainwater, or other foreign matter swarms into, and the imperfection ideal; Or have by air-flow power driving exhaust person, its blade shape is designed to the plane, it can only be simple virgin " windmill " structure of playing of utilizing, the rubbing surface that blade combines with base is many, and frictional force thereby bigger need have relatively large air draft, can drive vane, reach the effect of exhaust, so the structure of windmill type (without meticulously with the mechanics principle design), the structure of still non-perfection.

The purpose of this utility model is to provide a kind of unregulated power air exhausting device, and it designs according to fluid mechanics, improves the turbine blade shape, and the frictional force of rotation section branch is reduced to minimum, need not electric power and just can reach exhaust effect, thereby save energy and protect environment.

Unregulated power air exhausting device of the present utility model is made up of base, bluff piece, bonding pad, location axis body, positioning rod, cover frame and several turbine blades; Turbine blade system and bluff piece, bonding pad, cover frame are formed one, and are linked to the location axis body by bonding pad, form an integral body via the cooperation of base, positioning rod again; Its major character is:

This positioning shaft system one beam barrel spiral shell is solidly connected piece, rotates the centering bar, check washer, lock bolt are integral, will rotate the centering bar be set as bore the cusp overhead in beam barrel among on the axle center cone groove; And the central shaft restraining groove is radially inserted with the build-in screw rod in the beam barrel bottom, and with the contact medium of lubricant body as beam barrel and central shaft.

For structure characteristic and effect to the utility model are understood fully, conjunction with figs. is described in more detail in the back with by way of example now:

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

Fig. 2 is the location axis body sectional view of the utility model.

Fig. 3 is the turbine blade and the generalized section thereof of the utility model.

Fig. 4 is the stereoscopic motion schematic representation of the utility model.

See also Fig. 1, it is the structural representation of the utility model, is made up of bluff piece 41, bonding pad 40, location axis body 10, several turbine blades 30, positioning rod 21, cover frame 31, base 20 substantially; Turbine blade 30 is to form one with bluff piece 41, bonding pad 40, cover frame 31, and is connected in location axis body 10 by bonding pad 40, again via the cooperation of base 20, positioning rod 21, forms an integral body.

Seeing also Fig. 2, for the positioning shaft body structure sectional view of the utility model, is a central shaft 60, and the upper-end surface is arranged with center cone groove 63, and lower loop is established restraining groove 61 and is configured to one with base 20; Bonding pad 40 is an one with beam barrel 50, and spiral shell rotates centering bar 15, contiguous block 14, check washer 12 admittedly, lock bolt 16 is integral again, beam barrel 50 is placed on central shaft 60, just allow and rotate centering bar 15 awl points, become in the sharp centering awl of the some groove 63, and installing lubricant body 13, beam barrel 50 lower ends are contacted with central shaft 60, and establishing build-in screw rod 11 radially inserts in (but not contacting) central shaft 60 restraining grooves 61, prevent that beam barrel 50 from deviating from central shaft 60 because of external force integral body, and center cone groove 63 is inserted lubricant oil 62, will make the pivoting friction that rotates centering bar 15 littler.By above-mentioned structure, can obviously find out to have following characteristics and effect:

1. turbine blade 30 and accessory overall weight are the awl pinnacle and touch in central shaft 60 by rotating centering bar 15, that is produce frictional force biggest place system and be designed to a contact, and make rubbing surface reduce to minimum, and its frictional force can be reduced to the most minimum certainly.

2. beam barrel 50 is contacted with central shaft 60 via lubricant body 13 for medium, and except that can be spacing not eccentric, its frictional force be also reduced to minimum.

3. build-in screw rod 11 can prevent beam barrel 50 off center axles 60, but normal condition when running, build-in screw rod 11 does not contact central shaft 60, so can not produce frictional force.

4. it is flexible to rotate centering bar 15 adjustable lengths, has and adjusts the optimum distance of beam barrel 50 from base 20.

See also Fig. 3, be the utility model turbine blade and generalized section thereof, turbine blade 30 is to be set as the cutter shape, and is to turn over and lifts up arc, and its sheet noodles are provided with the concave arc groove, forms intrados 32,33,35 and outer arced surface 34; When the air-flow B of rising touches whirlpool leaf blade 30 intrados 32,33,35, cooperate it to turn over again and lift up arc shape, and make air-flow B be able to push-jump moving turbine blade 30; If there is external force (like rain, wind) to blow from turbine blade 30 outside, the design of outer arced surface 34 just can allow and help to promote turbine blade 30 from the person that has come clockwise, and the just suitable convex globoidal of the person that has come is taken advantage of a situation and slipped away counterclockwise, and minimum is reduced in the interference of external force.

See also Fig. 4, be the utility model stereoscopic motion schematic representation, each turbine blade 30 is formed a spheroid, and be separated with air cleft 70, thrust is in turbine blade 30 intrados 32 when air-flow B rises, 33, on 35, make turbine blade 30 rotate and produce torque A, in the nature of things, there is torque A must produce centrifugal force C, the equidirectional flowing velocity that just can strengthen air-flow B of this centrifugal force and air-flow B, and make air-flow B continuously touch turbine blade 30 intrados 32 from rising to push away down, 33,35, except that self expulsion force, help to flow by centrifugal force C again, running so goes round and begins again, add that frictional force is minimum, and can allow turbine blade 30 rotate, waste gas is discharged as electric fan.

Comprehensively above-mentioned, the improvement leaf morphology of the utility model and the improvement of the contact structures of rotation section branch is the contact of awl cusp reduces the frictional force influence to minimum, makes the rotation of unregulated power air exhausting device sensitiveer, smooth and easy.

Claims (2)

1, a kind of unregulated power air exhausting device is made up of base, bluff piece, bonding pad, location axis body, positioning rod, cover frame and several turbine blades; Turbine blade system and bluff piece, bonding pad, cover frame are formed one, and are linked to the location axis body by bonding pad, form an integral body via the cooperation of base, positioning rod again; It is characterized in that:

This positioning shaft system one beam barrel spiral shell is solidly connected piece, rotates the centering bar, check washer, lock bolt are integral, will rotate the centering bar be set as bore the cusp overhead in beam barrel among on the axle center cone groove; And the central shaft restraining groove is radially inserted with the build-in screw rod in the beam barrel bottom, and with the contact medium of lubricant body as beam barrel and central shaft.

2, a kind of according to claim 1 unregulated power air exhausting device; Its turbine blade is set as to turn over lifts up arc, and its sheet noodles are provided with the concave arc groove, form several intrados and outer arced surface.

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