CN2271626Y

CN2271626Y - Electrical fan

Info

Publication number: CN2271626Y
Application number: CN 96215060
Authority: CN
Inventors: 黄国镇
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-06-20
Filing date: 1996-06-20
Publication date: 1997-12-31
Anticipated expiration: 2006-06-20

Abstract

The utility model relates to en electric fan, which comprises a base of which the top part is fixedly provided with a supporting body, and the top part of the supporting body is provided with a pivoting part. The pivoting part is convexly provided with a circular depressed part, and an annular groove is concavely arranged in the depressed part. The inner wall of the depressed part is fixedly provided with an adjusting positioning sheet with a plurality of positioning holes and a frame seat which is pivoted with the head part of a reciprocating swinging fan; the frame seat is convexly provided with two symmetrical projecting parts which can be embedded in the depressed part of the pivoting part, the end part of the projecting part is convexly provided with an annular side which can be embedded in the annular groove, and one of the projecting parts is provided with a hole in which an elastic element can be filled. A ball is arranged between the adjusting positioning sheet and the elastic element.

Description

Electric fan

The utility model relates to a kind of electric fan, particularly relates to a kind of electric fan with bigger luffing angle adjustment range.

The general medium-sized electric fan of family expenses on the market mostly is the vertical type electric fan, and this vertical type electric fan has a base, and base up extends a shaft-like strut, adorns a fan head at this supporting bar top pivot.The electric fan head of this vertical type electric fan and strut are the modes with single pivot joint immovable point, fan head firmly is articulated on this strut, the pivot joint immovable point is located at the front end of fan head and can't be positioned on the position of tail end, this is because the center of gravity of fan head is positioned at front end, so the luffing angle that this electric fan head can provide is adjusted the adjustment that function can't reach wide-angle, just can't reach vertically upward or to the wide-angle adjustment of Hou counter-rotating.In that a kind of profile is arranged on the market is the small-sized household electric fan of box, this box electric fan is at rotatable wind-guiding flabellum of front end installing, described wind-guiding flabellum has several transversely arranged and past same directions and tilts but the bar shaped wind deflector of the different inclinations of tool, by the rotation of wind-guiding flabellum with wind be directed to the electric fan dead ahead on, down, though the wind-guiding flabellum can be directed to wind, down, it is bar shaped wind deflector by the different gradients of tool, wind is blown out along the guiding of wind deflector face, but the bar shaped wind deflector of inclination of relatively having can make this electric fan wind-force that the dead ahead is sent die down, and can't export wider range and wind-force uniformly.

The utility model main purpose is to provide a kind of tool toward wraparound swing effect and have bigger luffing angle adjustment range simultaneously, and the electric fan of wider wind direction can be provided.

Electric fan of the present utility model comprises a base, a supporting body, an adjustment location piece, a skeleton frame, an elastic element, a ball, a driving mechanism and a reciprocally swinging device.Set firmly supporting body in described base top, this supporting body is by before symmetrical and corresponding, the Hou frame combines and forms first of two mutual correspondences on its top, two pin-joint parts, and described first, form the space that is pivoted between two pin-joint parts, and first, the opposing side of two pin-joint parts is arranged with the depressed part of a circle respectively, be arranged with circular groove of formation in this depressed part bottom surface toward the radially expansion of depressed part, an ancient piece of jade, round, flat and with a hole in its centre and be equiped with the curved circular arc of a corresponding arc and adjust location piece in the depressed part of described first pin-joint part offers the positioning hole of a plurality of circular array on this adjustment location piece.Described skeleton frame is a framework around the closed interval, outside the skeleton frame lateral, be convexly equipped with two correspondences and cylindrical first mutually, two bumps, described first, the limit is also encircled toward radially being convexly equipped with one respectively in the end of two bumps, and on first bump, offer a hole, this is first years old, two bumps are installed in first of supporting body respectively, in two depressed parts, make described first, the ring limit of two bumps embeds first respectively, in the circular groove of two depressed parts, and described skeleton frame is pivoted on it, load elastic element in the hole on first bump, and between adjustment location piece and this elastic element, be equiped with a ball, described wind pushing mechanism is to be hubbed in the skeleton frame, include a motor and a blade, this blade is installed on the transmission shaft of this motor, produce air-supply and move via described electric motor drive, described reciprocally swinging device is to be installed between this motor and the skeleton frame, the reciprocally swinging effect of the motivation of can the powering left and right sides.

Order about ball by rotating skeleton frame and be mounted in the different positioning holes of adjusting on the location piece, have effect that can bigger adjustment luffing angle location and provide wider scope and wind-force uniformly.

Below by Cui embodiment and accompanying drawing electric fan of the present utility model is elaborated, in the accompanying drawing:

Fig. 1 is the three-dimensional exploded view of the utility model than Cui embodiment.

Fig. 2 is the part sectional view of the utility model than Cui embodiment

Fig. 3 is the part sectional view of the utility model wind pushing mechanism.

Fig. 4 is the utility model reciprocally swinging schematic representation of apparatus.

Fig. 5 is the part sectional view of the utility model than Cui embodiment.

Fig. 6 is the angular adjustment schematic representation of the utility model than Cui embodiment.

As shown in Figure 1, 2, 3, electric fan of the present utility model comprise a base 2, supporting body 3, one adjust location piece 4, skeleton frame 5, elastic element 61, ball 62, a driving mechanism 7 and a reciprocally swinging device 8.

This base 2 is pedestals that a top is convex arc-shape, and offers an embedding fixed hole 21 at its top.Supporting body 3 is to be combined by two symmetrical and corresponding preceding, 31,32 of Hou framies, this front casing body 31 has one and is half-terete main part 310, the build-in portion 314 of a small radii is formed on these main part 310 bottoms, the arc bending that makes progress on these main part 310 tops becomes two symmetrical left and right supporting arms 311 and is U font shape, the inner side surface at two support arms, 311 tops also is arranged with a semicircular in shape respectively and the inner side surface of symmetrical depressed part 312, two depressed parts 312 and radially enlarge respectively and be arranged with an embedding ditch 313; This Hou frame 32 is the complete and mutual corresponding shell of the structure with front casing body 31, so no longer describe in detail; By the solid mode of spiral shell spare spiral shell should before, 31,32 combinations of Hou frame, form this supporting body 3, and in two first and second pin-

joint parts

33,34 that have a circular depression 312 respectively of formation, supporting body 3 tops, depressed part 312 radially inwardly enlarges and forms a ring-type embedding ditch, and is combined to form a build-in portion 35 that can embed these base 2 fixed holes 21 relatively in the bottom of this supporting body 3 with two build-in portions 314.Adjust location piece 4 and be one to should the curved circular arc lamellar body of depressed part 312 arcs, and offer the positioning hole 41 of most circular array thereon.Also extend an abutting part 42 respectively outward at these adjustment location piece 4 two ends.Skeleton frame 5 is the frameworks around the closed interval, is convexly equipped with two corresponding mutually and cylindrical first and

second bumps

51,52 outside its lateral.Limit 511,521 is encircled toward radially being convexly equipped with one respectively in end at this first and

second bump

51,52, then offers a hole 510 at this first bump 51.Like this, the top of skeleton frame 5 can be extended out a handle 53.Elastic element 61 is a spring in the present embodiment.

Shown in Fig. 1,3,4, described wind pushing mechanism 7 comprises a motor 71 and a blade 72, and this motor 71 is hubbed in the skeleton frame 5, and this blade 72 is installed on the transmission shaft 710 of motor 71, produces the effect of air-supply via motor 71 transmissions.This reciprocally swinging device 8 is transmission shaft 710 transmissions by motor 71, makes first and second gear 81,82 of reciprocally swinging device 8 drive rotatory force and its axial vertical rotatory force of changing this transmission shaft 710.Be convexly equipped with out an axostylus axostyle 810 at the center of first gear 81, the bottom of this axostylus axostyle 810 sets firmly a blade 83, a fixing rod 84 is pivoted on blade 83, the end of this fixing rod 84 is fixed on the skeleton frame 5, provide blade 83 1 rotating fulcrums by fixing rod 84, make when described axostylus axostyle 810 drives first and second gear 81,82 rotations, can make blade 83 be the moving displacement of rotation, and described motor 71 is to be hubbed in the skeleton frame 5, so reciprocal swing about wind pushing mechanism 7 is done.

During assembling, earlier elastic element 61 is installed in the hole 510 on first bump 51 of skeleton frame 5, again with first of this skeleton frame 5, two

bumps

51,52 are installed in the depressed part 312 of front casing body 31 respectively and make first, two

bumps

51,52 ring limit 511,521 embed respectively in the embedding ditch 313, again Hou frame 32 correspondences are covered at this frame 31, before spiral shell spare general, Hou frame 31,32 are combined to form supporting body 3, skeleton frame 5 is articulated in first, two pin-joint parts 33, between 34, when Hou frame 32 lids are located at front casing body 31, to adjust on 51 of first bumps that location piece 4 is seated in this hole 510, and ball 62 put between this adjustment location piece 4 and elastic element 61, and before described, Hou frame 31,32 when covering fixedly mutually, the abutting part 42 of described adjustment location piece 4 can be pressed solidly preceding, Hou frame 31, between 32, and adjustment location piece 4 is fixedly abutted on the face of depressed part 312.Again build-in portion 35 correspondences of described supporting body 3 bottoms are embedded in the fixed hole 21 of this base 2, supporting body 3 is fixed on the base 2, just finish the assembling of electric fan.

Shown in Fig. 5,6, during use, ball 62 compressions elastic element 61 is thereafter entered in the hole 510, when the positioning hole 41 on being threaded to this adjustment location piece 4 and hole 510 are corresponding, this elastic element 61 can embed these ball 62 tops in the positioning hole 41 forward, has the effect of location.

In the utility model, the supporting body 3 of tool U font top structure can provide the space that is pivoted of big luffing angle scope, and ball 62 is slipped in the positioning hole 41 of adjusting diverse location on the location piece 4 by turn skeleton frame 5, the locating effect that different luffing angles can be arranged, cooperate wind pushing mechanism 7 with left and right reciprocally swinging function, at different luffing angles, provide the left and right wind-force air-supply effect uniformly that back and forth reaches.

In addition, described wind pushing mechanism 7 front ends can be installed a protecting wire net (figure do not show), and this protecting wire net can surround blade 72, form a catch net, damage because of touching rotating blades 72 preventing.

Claims

1. electric fan, comprise base that a supporting body, one be fixed on this supporting body bottom, tool skeleton frame, a wind pushing mechanism and reciprocally swinging mechanism around the closed interval, described wind pushing mechanism be hubbed in the skeleton frame and comprise a motor and transmission shaft that one is installed in this motor on blade, described reciprocally swinging device is installed between motor and the skeleton frame, make described motor left and right sides reciprocally swinging, it is characterized in that:

Described supporting body is first and second pin-joint parts that combine and form on its top two mutual correspondences with two symmetrical and corresponding preceding, Hou framies, and between described first and second pin-joint part, form the space that is pivoted, the forward surface of first and second pin-joint part is arranged with the depressed part of a circle respectively, is arranged with a circular groove toward radially enlarging in this depressed part;

Electric fan comprises one in addition and adjusts location piece, and this adjustment location piece is the lamellar body of the curved circular arc of corresponding depressed part arc, and the corresponding depressed part internal face that reclines and be fixed on first pin-joint part, adjusts the positioning hole that location piece offers a plurality of circular array;

Be convexly equipped with two corresponding mutually and cylindrical first and second bumps outside the described skeleton frame lateral, the limit is encircled toward radially being convexly equipped with one respectively in end at first and second bump, and offer a hole at first bump, be filled with an elastic element in this hole, and adjust ball of installing between location piece and this elastic element at this, described elastic element with the ball contact in the positioning hole of adjustment location piece;

2. electric fan as claimed in claim 1 is characterized in that:

Described skeleton frame top is convexly equipped with a handle.