CN2353946Y

CN2353946Y - Electric fan

Info

Publication number: CN2353946Y
Application number: CN 98234007
Authority: CN
Inventors: 黄进成
Original assignee: GUORUN ELECTRICAL APPLIANCE (SHENZHEN) CO Ltd
Current assignee: GUORUN ELECTRICAL APPLIANCE (SHENZHEN) CO Ltd
Priority date: 1998-04-14
Filing date: 1998-04-14
Publication date: 1999-12-15
Anticipated expiration: 2008-04-14

Abstract

The utility model relates to an electric fan. A pedestal and a fan body are connected by an outer ring frame and an inner ring frame, wherein the outer ring frame is inserted on the pedestal, the fan body is inserted between two scarf joint parts of the inner ring frame and can be controlled by an eccentric swing mechanism, and fan body can rotate on the inner ring frame by using the two scarf joint parts as fulcrums. The outer ring wall of the inner ring frame is abutted with the inner ring wall of the outer ring frame, and the inner ring frame and the outer ring frame can rotate correspondingly. A plurality of protrudent supporting strips are arranged at the attaching positions of the inner ring frame and the outer ring frame for reducing rotation friction. The fan body rotates horizontally when the connecting line between the two scarf joint parts on the inner ring frame are parallel to brackets on the pedestal. When the connecting line between the two scarf joint parts on the inner ring frame are deviated from the brackets on the pedestal, the fan body rotates slantways because of the deflection of the angle of the fan body erected on the pedestal. Thus, the wind supply angle can be changed at will.

Description

Electric fan

The utility model relates to electric fan, is specifically related to fan body and pedestal that a kind of utilization can counterrotating inner and outer rings frame be connected electric fan, thus the electric fan of rotation wind direction when changing fan air-supply.

The traditional electrical fan structurally mostly directly sets up a fan body on a pedestal top, for the wind energy that fan body is sent is delivered to the different azimuth place enough on demand, the Height Adjustment mechanism of one adjustment height is set on its pedestal usually, the one luffing angle regulating mechanism that can change luffing angle is set between pedestal and fan body, and install one in fan body inside can pedestal be the beat mechanism that fulcrum horizontally rotates, by the cooperation of aforementioned each mechanism, the wind energy that makes electric fan send is enough adjusted height, luffing angle and horizontal position.As mentioned above, though conventional electric fan need be provided with a plurality of regulating mechanisms by each orientation, yet, still can't satisfy the popular needs of general consumption on its air supply mode, for example: general user is sitting in when handling official business on the office chair, though can adjust the height and the direction of air-supply by height and aligning elevation gear, but the angle of adjusting the back air-supply still is confined to certain position, can't allow parts of body evenly experience cool breeze fully, though and electric fan has rotation air-supply function, also only be confined to substantially horizontal rotate, therefore, both feet may be awfully hot when air-supply is adjusted to above the waist, and if will fan net presses to foot, then blow again less than wind above the waist; Suppose that in the occasion of using the user must one sits, during the work at a station, single electric fan more can't satisfy two users' needs simultaneously; Its reason is that conventional fan only can horizontally rotate wind is sent, and can't send with diagonally opposing corner orientation or Vertical direction.

The purpose of this utility model is to overcome the aforesaid drawbacks that exists for a long time on the what electric fan, and a kind of electric fan that can change air supply direction when rotating arbitrarily is provided.

The purpose of this utility model is achieved in that a kind of electric fan of structure comprises:

The pedestal on what plane is established in support;

Fan body comprises a shell and a cased motor, and this motor has a running shaft with the rotation of transmission one flabellum, coats the fan net of flabellum in shell the place ahead assembling one;

Inner ring frame, cover is trapped among the shell periphery of fan body, extends the shell of the interlocking portion of two butt joints with the clamping fan body on it, and this fan body can be the fulcrum rotation with two interlocking portions after the clamping, and the outside of this inner ring frame also is provided with an external annulus:

Outer shroud frame, fixing frame are located on the pedestal, and it has an internal ring wall, and above-mentioned internal ring wall also is linked in the periphery of the external annulus of described inner ring frame; And

Beat machine ditch is assembled in the shell of fan body, and transmitted by motor, can drive the orientation rotation of fan body with line between vertical what two interlocking portions;

When the line between two interlocking portions was parallel with pedestal on the inner ring frame, the fan body that driven by beat mechanism can be and horizontally rotates; And inner ring frame and fan body that rotation is connected with group, and when line between two interlocking portions is departed from mutually with support, originally the fan body that horizontally rotates promptly can be because of being erected at the deflection of pedestal upper angle, and present oblique rotation, thereby reach the purpose of random change rotation wind direction.

Implement electric fan of the present utility model, simple in structure, can realize arbitrarily changing the order that rotates wind direction, satisfy user's different requirements.

In conjunction with the purpose of this utility model, to technological means and the effect thereof that is adopted,, be described in detail as follows with reference to drawings and Examples, in the accompanying drawing:

Fig. 1 is the three-dimensional exploded view of the utility model electric fan preferred embodiment.

Fig. 2 is the assembled sectional view between shell, outer shroud frame and inner ring frame among the utility model electric fan embodiment.

Fig. 3 is the combination sectional block diagram of outer shroud frame in the preferred embodiment of the utility model electric fan.

Fig. 4 is the schematic perspective view of beat mechanism in the preferred embodiment of the utility model electric fan.

Fig. 5 is that overlooking of flat swinging mechanism made cardon in the preferred embodiment of the utility model electric fan.

Fig. 6 is the stereo appearance figure of the utility model electric fan preferred embodiment.

Fig. 7 is the cold adjustment schematic representation of the preferable enforcement of the utility model electric fan.

Fig. 8 is that the utility model electric fan embodiment adjusts the Hou External view.

Fig. 9 is the three-dimensional exploded view of another embodiment's of the utility model electric fan part member.

Figure 10 is the assembled sectional view between another embodiment's of the utility model electric fan shell, outer shroud frame and inner ring frame.

Figure 11 is another embodiment's of the utility model electric fan a stereo appearance figure.

The part figure number is unitedly described as follows: the 1st, and pedestal, the 11st, foot rest, the 111st, pin frame, the 112nd, pole, the 113rd, pin-joint part, the 12nd, regulating lever, the 121st, control knob, the 122nd, ear, the 123rd, breach, the 13rd, be connected piece, the 131st, inserting part, the 132nd, extension part, the 133rd, slot, the 134th, joining hole, the 14th, pivot, the 2nd, fan body, the 21st, shell, the 211st, front shroud, the 212nd, back cover, the 213rd, room, the 214th, perforation, the 215th, location bead, the 216th, through hole, the 217th, curve bath, the 22nd, motor, 221 running shafts, the 223rd, worm screw portion, the 23rd, flabellum, the 24th, fan net, the 25th, cushion cover, the 3rd, inner ring frame, the 30th, screw rod, the 31st, preceding moulding, the 32nd, Hou moulding, the 33rd, external annulus, the 331st, holder bar, the 341st, positioning block, the 342nd, draw-in groove, the 35th, inner via hole, the 4th, outer shroud frame, the 40th, screw rod, the 41st, preceding moulding, the 42nd, back moulding, the 43rd, external annulus, the 431st, carrying handle, the 432nd, inserted link portion, the 433rd, butt hole, the 44th, internal ring wall, the 441st, draw-in groove, the 45th, accessibke porosity, the 5th, beat mechanism, the 51st, transmitting gear, the 52nd, driven gear, the 53rd, swing sheet, the 54th, connecting sheet, the 541st, pivot end, the 542nd, restriction end, the 55th, controlling rod, the 6th, the outer shroud frame, the 71st, be connected piece, the 72nd, inner ring frame, the 73rd, fan body, the 8th, electric fan, the 81st, electric fan pedestal, the 82nd, outer shroud frame, the 83rd, inner ring frame, the 84th, fan body.

Referring to Fig. 1 and Fig. 2, the electric fan of present embodiment comprises a pedestal 1, a fan body 2, an inner ring frame 3 and an outer shroud frame 4, also is assembled with a beat mechanism 5 on fan body; Wherein:

Pedestal 1 has the foot rest 11 that can firmly put in the plane, this foot rest 11 comprises a pin frame 111 and is located at a pole 112 of its central authorities, form the pin-joint part 113 that a diameter dwindles defending 112 tops, be used for and regulating lever 12 sockets, and connect therebetween to adjust height by a control knob 121 control, its Height Adjustment mode is identical with general electric fan, does not describe in detail at this; Meanwhile, defend the ear 122 that 12 tops are extended with two correspondences in adjustment, be formed with a breach 123 122 of two ears, be used to insert the street and connect inserting part 131 on the piece 13, plug Hou and utilize a pivot 14 that inserting part 131 is articulated with ear 122 again, making linking piece 13 can be that fulcrum is adjusted luffing angle with pivot 14, extends an extension part 132 again in linking piece 13 inserting parts 131 leading edges, this extension part 132 has a square slot 133, on the cell body of slot 133, offer always to joining hole 134.

Fan body 2 has a shell 21, and this shell 21 is formed by a front shroud 211 and the 212 preceding Hou butt joints of Hou cover, and butt joint Hou forms a hollow on shell 21 room 213 is equipped with a motor 22 in this room 213, and this motor 22 has a running shaft 221.This running shaft 221 extends an end to front shroud 211 and forms a pivot end 222, be used for combining with flabellum 23, it extends an end to Hou cover 212 and then forms a worm screw portion 223, setting up one again at motor 22 Hous ends is positioned at and is installed in seat 20 below the worm screw portion 223, in order to reach purpose of safety, the fan net (safety cage) 24 that coats flabellum 23 is housed in front shroud 211 the place aheads again; Again, this shell 21 forms two perforation 214 that differ 180 degree in preceding, 211, the 212 docking sites assembling of Hou cover, the outwards outstanding respectively loop mapping bead 215 that is provided with of two perforation, 214 aperture peripheries, the prominent ring 215 peripheral sheathed cushion covers 25 respectively in each location, above Hou cover 212, offer an axial through hole 216 again, below preceding, Hou cover 211,212 docking sites, offer a curve bath 217.

Described inner ring frame 3 is set in the periphery of shell 21, is formed by Hous butt joint before a rounded preceding moulding 31 and the Hou moulding 32, and between the two again by several screw rod 30 Joints, the body of being present after the butt joint forms an external annulus 33, an internal ring wall 34 and an inner via hole 35; Wherein, the circular arc holder bar 331 of outstanding a plurality of spaced sets on this external annulus 33, on the holder bar 331 of the top, give prominence to again and be provided with a card article 332, and extend the two interlocking portions 341 of being separated by 180 degree on the internal ring wall 34, in each interlocking portion 341, be formed with opening draw-in groove 342 in opposite directions, for the location bead 215 on the shell 21 and cushion cover 25 inlay card of sheltering oneself, below the draw-in groove 342 other axial limiting holes 343 that form again; Under normal state, the line L that two interlocking portions are 341 is parallel with pole 112.

With reference to figure 1 and Fig. 3, described outer shroud frame 4 is formed by a preceding moulding 41 and a Hou moulding 42 preceding Hous butt joints, therebetween by several screw rod 40 Joints, in order to inner ring frame 3 and fan body 2 are erected on the pedestal 1.Moulding 41 docks Hou with Hou moulding 42 preceding Hous and form an external annulus 43, an internal ring wall 44 and an accessibke porosity 45 on pedestal before described; Wherein, external annulus 43 tops project upwards an inverted U-shaped carrying handle 431, an inserted link portion 432 that can be plugged in the slot 133 of pedestal 1 is extended downwards in its bottom, above-mentioned inserted link portion 432 be provided with one with joining hole 134 axial corresponding butt holes 433, supply a screw rod 434 to wear therebetween pedestal firmly is combined on the pedestal 1, at the inboard draw-in groove 441 that can supply holder bar 331 inlay cards of inner ring frame 3 that is concaved with of internal ring wall 44 rings; Form a positioning ditch 442 for card article 332 inlay cards in draw-in groove 441 again, the length of above-mentioned positioning ditch 442 only is half of internal ring wall 44, with the angle of swing of restriction inner ring frame 3 relative what outer shroud frames 4.

Cooperate Fig. 2 and Fig. 4, described beat mechanism 5 is contained in the portion that is installed in 20 of fan body 2, and it comprises: a driving gear 51, a driven gear 52, swing sheet 53, a connecting piece 54 and a controlling rod 55; Wherein, described driving gear 51 have one can with the first tooth portion 511 of worm screw portion 223 engagement of running shaft 221, these first tooth portion, 511 bottoms are provided with coaxial and second a tooth portion 512 that the number of teeth is less, its top then extends axially a main shaft 513; And this driven gear 52 is plugged in the portion of being installed in 20, its position is below worm screw portion 223, above-mentioned driven gear 52 have one can with the 3rd tooth portion 521 of the second tooth portion 512 engagement, give prominence to a coaxial extension rod 522 in the 3rd tooth portion 521 bottoms, above-mentioned extension rod 522 bottoms are installed on the fixed end 531 of swing sheet 53, forming one on swing sheet 53 again can be the free end 532 of fulcrum rotation with fixed end 531, this free end 532 also is articulated with a pivot end 541 of connecting sheet 54, forms restriction end 542 in the limiting holes 343 that is plugged on the inner ring frame 3 away from an end of pivot end 541 on the described connecting sheet 54; Control the engagement of 52 of driving gear 51 and driven gears for convenience, this control of socket defends 55 on the main shaft 513 of driving gear 51, and this controlling rod 55 is given prominence to above the through hole 216 of fan body 2.

Cooperate Fig. 1 and Fig. 3, beat mechanism 5 in the present embodiment is under the state that draws on controlling rod 55 quilts, this driving gear 51 be controlled bar 55 driving and on move, make 521 in the second tooth portion 512 and the 3rd tooth portion break away from engagement, at this moment, the rotating power of running shaft 221 can't lean on driving gear 51 to be delivered on the driven gear 52, and this moment, the rotation of running shaft 221 can't act on beat mechanism 5, that is whole fan body can only be blown but can't be horizontally rotated.

Cooperate Fig. 2, Fig. 4 and Fig. 5, when control defends 55 when being pressed down, driving driving gear 51 moves down, this moment, the first tooth portion 511 of driving gear 51 can be meshed with worm screw portion 223, and its second tooth portion 512 also can be meshed with the 3rd tooth portion 521 of driven gear 52, therefore, when running shaft 221 rotations, its power is driven driven gear 52 rotations indirectly; In rotation, fixed end 531 and driven gear 52 Joints by what swing sheet 53, therefore, the free end 532 of this swing sheet 53 can be the fulcrum rotation by fixed end 531, and articulate by aforementioned free end 532 of what and connecting sheet 54, the restriction end 542 of this connecting sheet 54 passes the curve bath 217 of shell 21 again; And be plugged in the limiting holes 343 of inner ring frame 3, therefore, in swing sheet 53 beats, hold 542 restricted can't displacements by the restriction of what connecting sheet 54, whole fan body 2 can only be the fulcrum rotation with two interlocking portions 341 of inner ring frame 3, the purpose of the rotation air-supply that is up to the standard thus, that is, be subjected to pining down and have only swing sheet 53, to impel Hou end (promptly assembling the position of the beat mechanism 5) swing of fan body 2 in rotation; Described structure and the traditional electrical fan that horizontally rotates air-supply is roughly the same, below no longer stating more.

Consult Fig. 1 and Fig. 6, present embodiment is at the controlling rod 55 of assembling Hou and beat mechanism 5 during by drawing up, and this fan body 2 can be defended 12 cooperate and adjusts luffing angle with adjusting by being connected piece 13, and it highly can be defended 12 by foot rest 11 and adjustment and adjust; Start flabellum 23 motor rotating 22 this moment, and can drive whole fan body 2 is that fulcrum horizontally rotates with two interlocking portions 3 41 on the inner ring frame 3; That is, the line L that two interlocking portions of the angle of swing of fan body 2 and inner ring frame 3 are 341 is perpendicular, and parallel with pole 112 by the line L of 341 in two interlocking portions of what inner ring frame 3 shown in Figure 6, therefore, the sense of rotation of this fan body 2 parallels with the vertical line of pole 112.

With reference to Fig. 2, Fig. 4 and Fig. 5, when the present embodiment desire changes the air-supply swing angle of fan body, hand steered fan body 2 also rotates it, when rotated since fan body 2 inlay cards in 341 in two interlocking portions of inner ring frame 3, therefore, this spinning force can cause inner ring frame 3 and together rotation in the internal ring wall 44 of outer shroud frame 4 of fan body 2; That is, the line L that adjusts 341 in Hou two interlocking portions can present vertical state with 112 of poles, and controlling rod 55 is also partially in a side, therefore, when the running shaft 221 of motor 22 is driven once again, though the still vertical what line L of the sense of rotation of this fan body 2, but because inner ring frame 3 has been rotated the vertical line of the no longer parallel what pole 112 of line L that causes 341 in two interlocking portions, therefore, the sense of rotation of this fan body 2 can be by horizontally rotating originally, be transformed into the air supply direction of top and the reciprocal beat in below, to its skew angle number of what and fan body 2, the angle of swing of inner ring frame 3 relative what outer shroud frames 4 and deciding; In like manner, when fan body 2 and inner ring frame 3 are rotated, and when making the vertical line of line L deflection what pole 112 of 341 in two interlocking portions, the sense of rotation of this fan body 2 then is and rotates back and forth to air-supply between upper left side and lower right.

In order to reach aforementioned purpose, electric fan of the present utility model changes over up and down butt joint with outer shroud frame docking mode by tandem docking as the 9th and shown in Figure 10; Be that outer shroud frame 6 in the present embodiment comprises a upper frame bar 61 of semicircular in shape and moulding 62 once, connect by two screw rods 60 equally between the two, butt joint Hou forms a complete external annulus 63 and the internal ring wall 64 of a ring on pedestal, wherein, these external annulus 63 bottoms outstanding one can plug the slotting portion 632 that defends that what one is connected on the piece 71, then form a draw-in groove 641 on an interior ring ancient piece of jade, round, flat and with a hole in its centre 64, draw-in groove 641 inboards equidistantly are provided with ring holder bar 642; And inlay card is an inner ring frame 72 64 of the internal ring walls of outer shroud frame 6, above-mentioned inner ring frame 72 has the draw-in groove 721 of a ring holder bar 642 inlay cards, it and a fan body 73 inlay card, combination mutually, in order to limit the angle rotatable of inner ring frame 72, forming a length in draw-in groove 721 only be the chase 722 of half length of pedestal internal ring wall, on the holder bar 642 of the top on the outer shroud frame 6, give prominence to one can slippage in chase 722 card article 643; Do butt joint up and down by outer shroud frame 6, can encircle this inner ring frame 72 equally, thereby make inner ring frame 72 and the fan body 73 that combines be able to rotation in outer shroud frame 6, and then change the direction of fan body 73 air-supply rotations.

The position is set also can as first embodiment, establishes on the what internal ring wall 721 of aforementioned holder bar 642, above-mentioned holder bar 642 is intended to reduce friction, and therefore, it is except space set, but also domain setting.

Front two embodiments are the upright fan that can support upright what ground and design, and present embodiment also can use on desk fan; As shown in figure 11, the electric fan 8 of present embodiment also has a pedestal 81, and these pedestal 81 tops plug fixes an outer shroud frame 82, embraces in outer shroud frame 82 central authorities and establishes an inner ring frame 83, and this inner ring frame 83 also is halved together fixing with a fan body 84; By previous constructions, can make table fan 8 have the function that changes the rotation air supply direction equally.

By above explanation as can be known, the utility model is to install an inner ring frame and an outer shroud frame between the pedestal of electric fan and fan body additional, and the outer shroud frame is combined on the pedestal, and inner ring frame combines with fan body, interlock, by the relative rotation on inner ring frame and the outer shroud frame, can make the fan body that originally can only horizontally rotate air-supply be able to produce the rotation air-supply of diagonally opposing corner, direction such as vertical along with the inner ring frame rotation, the wind direction of its crooked mode then can be adjusted the relative position between inner ring frame and outer shroud frame according to need; Above-mentioned structure can reach the purpose of any change rotation wind direction, makes electric fan more attain ideal in the use, and can be on the industry and use.

The above is only for embodying three preferred embodiments of the utility model electric fan, skilled personnel such as, and modification or modification according to the utility model category is made are included in the claim.

Claims

1, a kind of electric fan comprises: pedestal, the fan body on what plane are established in support, comprise cased motor, and this motor has a running shaft with the rotation of transmission flabellum, in shell the place ahead the fan net that coats flabellum is housed, and it is characterized in that also comprising:

One inner ring frame is set in the shell periphery of described fan body, extends the shell of the interlocking portions of two butt joints with the described fan body of clamping on it, and it is the fulcrum rotation that this fan body of clamping Hou is able to two interlocking portions, and there is an external annulus in the outside of this inner ring frame;

One outer shroud frame, fixing frame is located on the described pedestal, has an internal ring wall, and this internal ring wall is linked in the described external annulus periphery of described inner ring frame, and can make the described outer shroud frame rotation of the relative what of described inner ring frame; And

One beat mechanism is contained in the shell of described fan body, and transmitted by motor can to drive fan body to rotate with the orientation of line between vertical what two interlocking portions; Utilize the described outer shroud frame rotation of the relative what of described inner ring frame of combination, change the direction of fan body rotation air-supply with described fan body.

2, electric fan according to claim 1 is characterized in that, described inner ring frame bar by a moulding before one and a Hou moulding before the Hou butt joint form, affixed by several screw rods between the two.

3, electric fan according to claim 1 is characterized in that, described outer shroud frame by a moulding before rounded one and a Hou moulding before the Hou butt joint form, between the two by at least two screw rod Joints.

4, electric fan according to claim 1 is characterized in that, described outer shroud frame by a upper frame bar of semicircular in shape and once moulding dock up and down and form.

5, electric fan according to claim 1, it is characterized in that, described interlocking portion is provided with opening draw-in groove in opposite directions, and the outstanding all right one way or the other location bead of inlay card in two draw-in grooves respectively on the shell of this fan body also distinguished a sheathed cushion cover in location bead and draw-in groove.

6, electric fan according to claim 1 is characterized in that, outstanding several equidistantly are provided with the holder bar on the external annulus of described inner ring frame, and corresponding position forms the draw-in groove that is used for inlay card holder bar of an annular on the outer shroud frame.

7, electric fan according to claim 1 is characterized in that, outstanding several equidistantly are provided with the holder bar on the internal ring wall of described outer shroud frame, is arranged with the draw-in groove that a ring-type is used for holder bar inlay card on the external annulus of inner ring frame.

8, electric fan according to claim 1, it is characterized in that, wherein one hold in the palm the outstanding again card article of bar on the described inner ring frame, and form in the draw-in groove of described outer shroud frame by a chase, described chase can with described card article inlay card, with the restriction inner ring frame angle rotatable.