CN2085867U

CN2085867U - Manual mini-fan

Info

Publication number: CN2085867U
Application number: CN 90219470
Authority: CN
Inventors: 邢兆杰
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-09-25
Filing date: 1990-09-25
Publication date: 1991-10-02

Abstract

The utility model relates to a manual miniature fan which is composed of a casing formed by buckling two halves, a safety guard, a rotary impeller and a set of gearing shaft systems which can generate rotary motion, wherein the gearing shaft systems are fixed onto the back half of the casing by a gear casing frame; a driving wheel shaft of the gearing shaft systems is provided with a shaft handle which can do reciprocating movement around a shaft center of the shaft handle under the pressing force of fingers and the acting force of a spiral spring; the spring can have the function of a clutch to ensure that the shaft handle of the driving wheel is repositioned, and the rotary impeller can not inversely rotate. The shaft handle is continuously pressed and loosened to realize the clockwise continuous rotation of the rotary impeller so as to generate oriented wind. The wind rate is in a direct ratio to the pressure force value and the frequency value of the fingers.

Description

Manual mini-fan

The utility model is a kind of manually operated type micro fan, by casing, and rotary blade, safety enclosure and can belonging to the hand of amusement of hand-driven double as and body-building and take apparatus for composition such as hand-driven drive train.

As the fan of one of hand-held article, be relieve summer heat in the heat in full summer things of the indispensability of enjoying the cool of people over the past thousands of years always; Be that all kinds of electric fans of aeration-cooling installation are also very general in the modern room.More have miniature electric fan to come out in recent years, these are all in the life that improves and beautifying people.But, though the paper fan of swing can bring the slight chill in the air of silk silk again and again, can not produce any effect that muscle or muscles and bones obtaining are taken exercise, electronic miniature fan also can not get in time changing troublesome because of the electric power exhaustion.

The purpose of this utility model is to provide a kind of manually operated type micro fan that not only can be used to enjoy the cool pastime but also can make people's finger muscles obtain taking exercise with hand-driven, thereby satisfied the not only dual requirements of amusement but also body-building of people.

Goal of the invention of the present utility model can reach by following measure: utilize the method for molding and forming to make a casing of Gong holding only, this casing is made up of front and back two halves shell, fastens the back and forms a rectangular notch in a side of casing.Preceding half shell upper end has the support plate of three symmetrical distributions, in order to the supporting safety enclosure, a rotary blade is arranged in the cover, is contained on the shaft extension of casing anode running shaft.Rotary axis one band gear shaft is as above crossed wheel shaft by one group of pitch wheel axle, descends wheel shaft and bridge wheel shaft and helical spring to be meshed with the driving gear shaft of band handle.Each gear shaft is contained in respectively in the gear hub frame, and this gear hub frame then is fixed on the later half shell.The footstalk of driving gear shaft can be reciprocating around its axle center in the rectangular notch of casing.

Goal of the invention of the present utility model can also reach by following measure: promptly install an impeller skin plug additional between running shaft and impeller, in order to the reliable and stable rotation of impeller.

Drawing about accompanying drawing is described as follows: Fig. 1 is the plan view of manually operated type micro fan, and Fig. 2 then is the left side view of manually operated type micro fan.Among Fig. 1,1 band handle drive sprocket axle, 2 safety enclosures, 3 rotary shafts are crossed wheel shaft on 4,5 bridge wheel shafts, 6 descended wheel shaft, 7 gear hub framves.Among Fig. 2,8 half dollar head screws, 9 impeller skin plugs, 10 impellers, 11 helical springs, 12 preceding half shells, 13 later half shells, 14 rectangular notches, 15 casings.

The utility model is described further below in conjunction with embodiment: present embodiment is shown in Fig. 1 and Fig. 2.Band handle drive sprocket axle ［ 1 ］ among Fig. 1, rotary shaft ［ 3 ］ was gone up wheel shaft ［ 4 ］, and bridge wheel shaft ［ 5 ］ descended wheel shaft ［ 6 ］ to make modulus m＜1 by plastics.Each gear shaft is contained in respectively on the gear hub frame of being made up of two sheet irons ［ 7 ］.When with finger the driving wheel footstalk being pressed to dotted line position by shown position, driving wheel will drive down third wheel, the bridge wheel, and last third wheel and roulette wheel rotation, the running shaft impeller clockwise rotates, and produces directed wind.When the driving wheel footstalk reaches dotted line position, promptly unclamp and push finger, footstalk third wheel ［ 6 ］ under driving under the effect of helical spring ［ 11 ］ rotates, and bridge wheel ［ 5 ］ and last third wheel ［ 4 ］ are disconnected, the driving wheel footstalk is resetted, thereby guarantee the unlikely counter-rotating of follower ［ 3 ］.Push driving wheel footstalk ［ 1 ］ again and again, impeller ［ 10 ］ is ceaselessly rotation just, and the strength of finger presses is big more, and frequency is fast more, and the air quantity of generation is also just big more, and vice versa.Size is controlled by the people.

Casing among the embodiment ［ 15 ］ is made by injection moulding.The top of preceding half shell ［ 12 ］ has three support plates that become 120 degree to distribute mutually, and there are 2 boss later half shell ［ 13 ］ inboard.Support plate is in order to the supporting safety enclosure, and boss then is used for fixing gear hub frame ［ 7 ］.After the two halves shell fastens, form rectangular notch ［ 14 ］ in casing one side, it is reciprocating around its axle center that driving wheel footstalk ［ 1 ］ can freely pass through this notch.For making impeller ［ 10 ］ reliable and stable rotation under running shaft drives, between impeller and running shaft, install an impeller skin plug ［ 9 ］ additional, rising increases frictional force and fixation.

The utility model is compared not electricity consumption with Miniature electric fan, uses hand-drive, and volume is small and exquisite, and is cheap, and the pastime that both can be used for enjoying the cool is again a kind of sports goods of body-building.

Claims

1, a kind of manually operated type micro fan, this fan has the casing that can Gong hold, two halves before and after casing divides, fasten the back and form a rectangular notch in the one side, preceding half shell upper end has the support plate of three symmetrical distributions, in order to the supporting safety enclosure, one rotary blade is arranged in the cover, be contained on the shaft extension of casing upper end running shaft, it is characterized in that running shaft [3] is a band gear shaft, by one group of pitch wheel axle [4], [5], [6] and helical spring [11] be meshed with band handle gear shaft [1], the footstalk of gear shaft [1] can to-and-fro motion in the casing notch, gear shaft is contained in respectively in the gear hub frame [7], and shell frame [7] then is fixed on the later half shell [13].

2,, it is characterized in that impeller skin plug ［ 9 ］ is contained between running shaft ［ 3 ］ and the impeller ［ 10 ］ according to the manually operated type micro fan of claim 1.