CN2537839Y

CN2537839Y - Swinging mechainsm for vertical column type electric fan

Info

Publication number: CN2537839Y
Application number: CN 02203003
Authority: CN
Inventors: 霍树添
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-02-08
Filing date: 2002-02-08
Publication date: 2003-02-26
Anticipated expiration: 2012-02-08

Abstract

A wobbling mechanism of the vertical column type electric fan. The utility model comprises a micro-motor, a crank lever, a connecting rod, a middle axle, a middle axle plate, a wobbling fork connected with the connecting rod, and a connecting plate fixedly connected on the vertical column, the utility model is characterized in that the micro-motor is fixed at the fan bottom of the electric fan through a supporting frame, the wobbling fork is tightly struck to the plate surface of the middle axle plate, and the middle axle plate is fixedly connected with the connecting plate. Compared with the prior technology, the wobbling mechanism has the advantages that the structure is simple, the material is saved and the cost is reduced.

Description

The swinging mechaism of upright post type electric fan

Technical field

The utility model relates to a kind of upright post type electric fan, the particularly swinging mechaism of upright post type electric fan.

Background technique

The swinging mechaism of common upright post type electric fan all is to rely on the micro motor that is contained on the fixed base to promote the fan body motion by lanar four rod mechanism.As shown in Figure 1 and Figure 2, this swinging mechaism is made up of micro motor 11, support plate 12, crank 14, connecting rod 13, axis 9, middle axillare 10, land 8 and swing fork assembly etc.The swing fork assembly comprises movable swing fork 15, ball gasket ring 5, ball 4 and ball bezel ring, 3.Micro motor 11 is fixed on the support plate 12, and on land 8, land 8 is fixed on the fan column that base is housed support plate 12 by screw.The output shaft of micro motor is connected with movable swing fork 15 by crank 14, connecting rod 13.Movable swing fork 15 is bearing on the axis by ball gasket ring 5, ball 4, ball bezel ring, 3 and overlaps on 6.Be provided with nut 1 and spring washer 2 on the top of axis 9, screw nut 1, the bottom of axillare 10 during movable swing fork 15 is close under the tension of axis 9.When micro motor 11 was connected power supply, micro motor 11 was fixed, and its output shaft drives crank 14 rotations, crank 14 drivening rods 13, connecting rod 13 drive activity swing forks 15, axillare 10 during movable swing fork 15 drives, it is reciprocating to drive fan body 7 by middle axillare 10.The shortcoming of this swinging mechaism is a complex structure, and component part is many, and simultaneously, micro motor is contained on the land, causes land must select expensive anti-flaming ABS material manufacturing for use, thereby causes cost higher.In addition, because micro motor is on the fixed land, and main motor is on the fan body of activity of micro motor top, and both distances are far away, and relative movement is arranged again, so its connection lead is longer relatively, increased the consumption of conductor material.

Summary of the invention

Technical problem to be solved in the utility model is, at the above-mentioned shortcoming of the swinging mechaism of existing upright post type electric fan, provide a kind of simple in structure, materials consumption is few, the swinging mechaism of lower-cost upright post type electric fan.

The utility model is to adopt following technological scheme to realize: the swinging mechaism of this upright post type electric fan comprises micro motor, crank, connecting rod, axis, middle axillare, the swing fork that is connected with connecting rod and is fixedly connected on land on the column, micro motor is fixed on the fan body bottom of electric fan by support, on the plate face of axillare, middle axillare was fixedlyed connected with land during swing fork was close to.After the micro motor energising, the micro motor that is contained on the fan body is passed to crank to mechanical energy, the crank drivening rod, connecting rod drives swing fork, swing fork then is used for axillare owing to can not be pushed on the axillare in being close to masterpiece, but because that middle axillare is fixed on the land that fuses with column is stiff, consequent reaction force drives fan body and does reciprocal oscillating motion.The utility model replaces complicated swing fork assembly in the existing branch art with simple swing fork, simplifies the structure, and has reduced part.Simultaneously, because micro motor is not installed on the land, land need not use expensive anti-flaming ABS material manufacturing, and the size of this micro motor support is much smaller than land, thereby has significantly reduced the consumption of anti-flaming ABS material, thereby cost is reduced.In addition, this micro motor all is installed in the fan body bottom with main motor, and both distances are near, do not have relative movement again, so can shorten the connection lead, reduce materials consumption.

The utility model compared with prior art has obvious advantage simple in structure, that save material, reduce cost.Except that the swing fork designs simplification, the structure of middle axillare, land is all than simple, the material-saving of prior art.Middle axillare area narrows down to about 1/3rd of original structure.The used comparable former mechanism of anti-flaming ABS material of this mechanism reduces about 2/3rds.

Description of drawings

Fig. 1 is the structural representation of existing upright post type electric fan swinging mechaism;

Fig. 2 is the plan view that does not contain fan body among Fig. 1 below the axillare;

Fig. 3 is a structural representation of the present utility model;

Fig. 4 is the plan view that Fig. 3 does not contain fan body;

Fig. 5 is a shaft side figure of the present utility model;

Fig. 6 is the scheme of installation of the utility model in the upright post type electric fan.

Embodiment

With reference to Fig. 3, Fig. 4, Fig. 5, Fig. 6, the swinging mechaism of this upright post type electric fan by micro motor 11, crank 14, connecting rod 13, axis 9, middle axillare 10, land 8, swing fork 21, and micro motor support 17 form.Micro motor support 17 is made by anti-flaming ABS material, is screwed the bottom at fan body 7.Micro motor 11 is installed in the micro motor support 17.Middle axillare 10 is screwed on land 8.Middle axillare 10 is passed in the lower end of axis 9, is connected on the land 8 by nut 20, spring washer 19 and packing ring 18.Swing fork 21 places on the axillare 10.Swing fork 21 is passed on the top of axis 9, be contained in fan body 7 be provided with cover 22 in the axis respective aperture in.Shaft filler washer 23 and circlip for shaft 24 during be equipped with on the top of axis 9, in aggregates by middle shaft filler washer 23 and circlip for shaft 24 fan body 7 and land 8 assemblings.During fastening nut 20, swing fork 21 are close under the tension of axis 9 on the plate face of axillare 10.The two ends of connecting rod 13 are connected with swing fork 21 with crank 14 respectively in the mode of Spielpassung.Land 8 is screwed and is being equipped with on the fan column 16 of base.When micro motor 11 is connected power supply, the micro motor 11 that is contained on the fan body 7 is passed to crank 14 to mechanical energy, crank 14 drivening rods 13, connecting rod 13 drives swing fork 21, but because swing fork 21 can not be pushed on the axillare 10 in being close to, then axillare 10 during power passed to, and that middle axillare 10 is fixed on the land 8 that fuses with column 16 is stiff, satisfy swing fork 21 generation reaction forces, this reaction force passes to micro motor 11 by connecting rod 13, crank 14.Micro motor 11 drives fan body 7 by support 17 and does reciprocal oscillating motion.

Claims

1, a kind of swinging mechaism of upright post type electric fan, comprise micro motor, crank, connecting rod, axis, middle axillare, the swing fork that is connected with connecting rod and be fixedly connected on land on the column, it is characterized in that micro motor is fixed on the fan body bottom of electric fan by support, on the plate face of axillare, middle axillare was fixedlyed connected with land during swing fork was close to.

2, according to the described swinging mechaism of claim 1, it is characterized in that described middle axillare is passed in the lower end of described axis, be connected on the described land by nut, spring washer and packing ring.

3, swinging mechaism according to claim 1 is characterized in that described swing fork places on the described axillare, and described swing fork is passed on the top of described axis, is contained in fan body and is provided with in the respective aperture of cover in the axis.

4, swinging mechaism according to claim 1 is characterized in that middle shaft filler washer and circlip for shaft are equipped with in the top of described axis, and is in aggregates fan body and the assembling of described land by middle shaft filler washer and circlip for shaft.