CN2044656U

CN2044656U - Folding fan

Info

Publication number: CN2044656U
Application number: CN 89201397
Authority: CN
Inventors: 张俭
Original assignee: Individual
Current assignee: Individual
Priority date: 1989-01-30
Filing date: 1989-01-30
Publication date: 1989-09-20

Abstract

The utility model relates to a folding fan, mainly comprising fan blades, a fan base and a casing. When fan blades and the casing can be conveniently opened when working, which can also be shrunk when not working. The utility model has the advantages of small size, convenient operation, small size, quick folding and unfolding and convenient placing.

Description

Folding fan

The utility model relates to a kind of family expenses desk fan, particularly a kind of convenient Folding fan that shrinks.

At present, in the family expenses desk fan commonly used, flabellum and case can not shrink, when desk fan is not worked, its volume is bigger, should not place, even remove flabellum and case, the volume of flabellum and case is still bigger, bad placement, simultaneously, the mounting or dismounting of desk fan flabellum and case are also cumbersome.

Task of the present utility model is exactly in order to solve in the prior art, the flabellum of desk fan and case can not shrink, the mounting or dismounting trouble, volume is bigger when not working, the problem that should not place, and a kind of Folding fan is proposed, make it when work, flabellum and case can be easy to open, and can conveniently shrink when not working, and it are less to shrink the back volume.

Task of the present utility model is finished with following scheme.By flabellum, in the Folding fan that fan seat and case are formed, on the fan seat rotating shaft that links with motor shaft is housed, have spiral chute in this rotating shaft, there are baffle ring and step in two of rotating shaft, rotating disk is equipped with in the end of rotating shaft, between the step of rotating shaft and baffle ring, be with the front vane axle sleeve that links with front vane, middle sharf cover that links with middle blade and the rear blade axle sleeve that links with rear blade, wherein, a pin is housed in the front vane axle sleeve, in the spiral chute in this pin insertion rotating shaft, obverse is the bucking ladder terrace between three axle sleeves, can coincide mutually, case is by last left shell, last right shell body, following left shell and following right shell body are formed, wherein, between last left shell and the last right shell body, between last left shell and the following left shell and to go up between right shell body and the following right shell body be to link with the dovetail groove form, a screw is housed on every pair of dovetail groove, be used for fixing the relative position between the adjacent two housings, following left shell and following right shell body are contained in a fan upper bottom portion, are that the form with bolt and chute links between their threes.

The utility model is easy to use, and folding and expanding is rapid, simple and direct, and volume is little after folding the contraction, is convenient to place, and is suitable for family and uses.

Fig. 1 is overall structure figure of the present utility model.

Fig. 2 is the scheme of installation of case 1.

Fig. 3 is the plan view of Fig. 2.

Fig. 4 is the A-A sectional view of Fig. 2.

Fig. 5 is the B-B sectional view of Fig. 2.

When Fig. 6 is the flabellum folded state, three axle sleeve unfolded drawings.

When Fig. 7 is the flabellum working state, three axle sleeve unfolded drawings.

Describe the utility model in detail below in conjunction with accompanying drawing.

The utility model mainly is made up of fan seat, case 1 and flabellum, rotating shaft 6 that links with motor 2 is housed on fan seat top, there is step the rear end of rotating shaft 6, the front end of rotating shaft 6 is set with the baffle ring 7 that is fixed on the fan seat, have the spiral chute of dextrorotation in the rotating shaft between baffle ring 7 and the step 6, the spiral fluted reach is greater than the height of front vane axle sleeve 5 first order terraced steps, the height of rear blade axle sleeve 3 first order terraced steps and this three's sum of height that middle sharf overlaps 4 first order terraced steps.The front end of rotating shaft 6 is equipped with rotating disk 8, and these rotating disk 8 usefulness hands rotate and can drive rotating shaft 6 rotations.Flabellum is by front vane 12, middle blade 11 and rear blade 10 are formed, the root of each blade is equipped with an axle sleeve, each axle sleeve sky is enclosed within the rotating shaft 6, wherein, a pin 9 is housed in the front vane axle sleeve 5, in the spiral chute that this pin 9 inserts in the rotating shaft 6, middle sharf cover 4 and rear blade axle sleeve 3 skies are enclosed within the rotating shaft, obverse is a secondary bucking ladder terrace between these three axle sleeves, see Fig. 6, when these three blades each other angle be 120 °, and in the time of in same plane, corresponding surface between these three axle sleeves will coincide mutually, sees Fig. 7, when these three blades angle each other is 0 °, the top of the first order terraced steps of front vane axle sleeve 5 and rear blade axle sleeve 3 will be arranged in the bottom that sharf overlaps 4 first order terraced steps, be the top of second level terraced steps, see Fig. 6, sharf overlapped the height of 4 first order steps during the axial clearance between three axle sleeves was less than at this moment.In fan seat upper bottom portion 13 active block stop 14 and active block stop 26 are housed, this active block stop 14 and 26 is positioned at of lever 15, the middle part activity of this lever 15 is fixed on the upper bottom portion 13 of fan seat, the other end of lever 15 is by taper pin 16 controls that are contained in fan seat bottom end face, and the promotion taper pin is done axial motion can make active block stop 14 and 26 move upward.Case 1 is mainly by last left shell 17, last right shell body 18, following left shell 19 and following right shell body 20 are formed, the surperficial lateral arrangement of each housing has muscle 24, wherein, between last left shell 17 and the last right shell body 18, between last left shell 17 and the following left shell 19, between last right shell body 18 and the following right shell body 20 is to link with the dovetail groove form, see Fig. 3, Fig. 4, a screw 25 is housed on every pair of dovetail groove, be used for fixing the relative position between the adjacent two housings, last left shell 17 in the case 1 and last right shell body 18 are in a plane, muscle 24 between them is staggered, following left shell 19 and following right shell body 20 are in a plane, and the muscle 24 between them also is staggered, and each laterally is equipped with two chutes the bottom of following left shell 19 and following right shell body 20, the chute 21 of following left shell and the chute 22 of following right shell body are corresponding one by one, corresponding two chutes are the overlapping fan seat upper bottom portion 13 that are placed on, and bolt 23 will descend left shell and following right shell body 20 to be placed in fan seat upper bottom portion 13 by chute, see Fig. 5 and Fig. 2.

During use, earlier case 1 is drawn back to the left and right sides, case 1 is upwards drawn back again, screwed in place screw 25 makes in the case mutual alignment between each housing fix, and presses taper pin 16, active block stop 26 is lifted block rear blade 10.Press the direction rotary turnplate 8 of arrow indication among Fig. 1 then, make it to drive rotating shaft 6 and do equidirectional rotation, at this moment, spiral chute in the rotating shaft 6 drives front vane axle sleeve 5 one sides by pin 9 and slides backward, one side is made garden Zhou Yundong, beginning, because front vane axle sleeve 5, middle sharf cover 4 and rear blade axle sleeve 3 paste each other mutually, the axial position of three blade axle sleeves is blocked by the step at rotating shaft 6 rear portions, see Fig. 1, make front vane 12 not slide backward, can only make garden Zhou Yundong, and rear blade 10 is owing to blocked by active block stop 26, make rear blade axle sleeve 3 can not make garden Zhou Yundong, then middle sharf cover 4 is preceding, under the effect of rear blade axle sleeve, one side is done axial motion, one side is made garden Zhou Yundong, until closely coincideing in the bucking ladder terrace with front vane axle sleeve 5 and rear blade axle sleeve 3.At this moment, front vane 12, middle blade 11 and rear blade 10 mutual angles are 120 °, and in same plane.Subsequently, unclamp taper pin 16, the active block stop 26 of backing off is connected power supply, and electric fan then enters working state normally, reposefully.When electric fan quit work the folding contraction of need, rotary turnplate 8 made rear blade 10 be in extreme lower position, presses taper pin 16, allow active block stop 14 lift, block rear blade 10, counterrotating rotating disk 8, promptly collapsible flabellum, unclamp the positioning screwn 25 on the case, shrink case, then folding the contraction finishes.

Claims

1, a kind of by flabellum, the Folding fan that fan seat and case are formed, it is characterized in that: on the fan seat, a rotating shaft that links with motor shaft is housed, have spiral chute in this rotating shaft, two of rotating shaft has baffle ring and step respectively, rotating disk is equipped with in the end of rotating shaft, between the step of rotating shaft and baffle ring, be with the front vane axle sleeve that links with front vane, the rear blade axle sleeve that middle sharf cover that links with middle blade and rear blade link, wherein, a pin is housed in the front vane axle sleeve, in the spiral chute in this pin insertion rotating shaft, obverse is the bucking ladder terrace between three axle sleeves, can coincide mutually, case is by last left shell, last right shell body, following left shell and following right shell body are formed, wherein, between last left shell and the last right shell body, between last left shell and the following left shell and to go up between right shell body and the following right shell body be to link with the dovetail groove form, a screw is housed on every pair of dovetail groove, be used for the location, following left shell and following right shell body are contained in a fan upper bottom portion, are that the form with bolt and chute links between their threes.

2, according to the described Folding fan of claim 1, it is characterized in that: obverse is a secondary bucking ladder terrace between three axle sleeves, when three blades each other angle be 120 ° and in one plane the time, corresponding surface between these three axle sleeves will coincide mutually, when three blades angle each other is 0 °, the top of the first order terraced steps of front vane axle sleeve and rear blade axle sleeve will be arranged in the bottom of sharf cover first order terraced steps, be the top of second level terraced steps, the height of sharf cover first order terraced steps during the axial clearance between three axle sleeves is less than at this moment.

3, according to claim 1 or 2 described Folding fans, it is characterized in that: the spiral chute reach in the rotating shaft is greater than height, rear blade axle sleeve first order terraced steps height and this three's sum of middle sharf cover first order terraced steps height of front vane axle sleeve first order terraced steps.

4, according to claim 1 or 2 described Folding fans, it is characterized in that: last left shell in the case and last right shell body are in same plane, muscle between them is staggered, following left shell and following right shell body are in same plane, muscle between them is staggered, last left shell is enclosed within down on the left shell, and last right shell body is enclosed within down on the right shell body.

5, according to the described Folding fan of claim 3, it is characterized in that: last left shell in the case and last right shell body are in same plane, muscle between them is staggered, following left shell and following right shell body are in same plane, muscle between them is staggered, last left shell is enclosed within down on the left shell, and last right shell body is enclosed within down on the right shell body.