CN2165275Y

CN2165275Y - Adjustable oscillating angle range auto-oscillating device

Info

Publication number: CN2165275Y
Application number: CN 93237042
Authority: CN
Inventors: 唐世颖
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-06-12
Filing date: 1993-06-12
Publication date: 1994-05-18
Anticipated expiration: 2003-06-12

Abstract

The utility model relates to an automatic oscillating device with an adjustable swinging-angle range, which can be used for products, such as table fans, floor fans, heaters, warmers, etc. A disk which is provided with a straight groove along a radius direction, and a disk which is provided with a spiral groove along a circumferential direction are stuck together under the action of the elastic force of a spring. Round pins of one end of a swinging connecting rod are inserted into grooves of the two disks to adjust the length of a crank. Thereby, the purpose of the step or the stepless conversions of the swinging angles of the products can be reached.

Description

Adjustable oscillating angle range auto-oscillating device

The utility model relates to household appliance technical field, is used for the automatic head-shaking device that products such as desk fan, stand fan, heating device or warm-air drier are regulated the pivot angle scope.

Products such as existing desk fan, stand fan, heating device or warm-air drier, its automatic head-shaking device mostly has only a kind of pivot angle, promptly equals 90 °, and the Consumer can not select a kind of pivot angle scope between 0 ° and 90 °.Yet in actual life, people are when enjoying the cool or warm oneself, and the people is many sometimes, and the people is few sometimes, so regulate blowing range or the heating scope is the function of an indispensability of these products according to different situations.

The purpose of this utility model provides a kind of new automatic head-shaking device, and it can have level or the conversion pivot angle scope of shaking the head automatically infinitely, thereby provides a new function for products such as desk fan, stand fan, heating device or warm-air driers.

In products such as existing desk fan, automatically head-shaking device is a kind of distortion of crankrocker mechanism, the gearwheel of shaking the head (perhaps fixed crank) with the gearwheel of shaking the head by a garden pin with wave connecting rod and be connected, wave connecting rod drive fan head reciprocally swinging.

The utility model is provided with dish (2) and dish (3) on the basis of the automatic head-shaking devices of product such as existing desk fan, the dish (2) that wherein has a straight trough (R) combines with the gearwheel of shaking the head (1), perhaps be integrated with the gearwheel of shaking the head, directly on the gearwheel of shaking the head, open a straight trough (R), straight trough (R) along the radial direction of the gearwheel of shaking the head, can slightly depart from radius basically.Another dish (3) that has spiral chute (S) along garden Zhou Fangxiang combines with adjusting knob (10).Dish (2), dish (3) and the gearwheel (1) of shaking the head rely on the elastic force of spring (4) to stick together.Insert in the groove of these two dishes at the garden pin (6) that waves connecting rod (5) one ends.Center to the distance (l) at the center of the gearwheel of shaking the head (1) of garden pin (6) is equivalent to the length of crank in the mechanism, changes the pivot angle scope that crank length (l) can be regulated product heads such as desk fan by dish (2) and (3).

The utility model is compared with the scheme of the automatic head-shaking device of existing adjustable pivot angle scope, has simple in structurely, and cost is low, and is easy to use, locks advantages such as reliable.In addition, it also structurally has certain inheritance with the existing head-shaking device that can not regulate the pivot angle scope of product such as desk fan.

Description of drawings:

Fig. 1 is the structure sectional view of embodiment one in the utility model.

Fig. 2 is the structure sectional view of embodiment two in the utility model.

Fig. 3 is the structure sectional view of embodiment three in the utility model.

Fig. 4 is the structural representation of dish (2), dish (3) and dish (3a).

Embodiment one

In Fig. 1,, drive the gearwheel (1) of shaking the head by small gear (12) and carry out second level deceleration to small gear (12) by motor shaft process first-stage worm gear worm speed-down (not shown), the rotating speed that makes the gearwheel of shaking the head (1) is that per minute 5～6 changes.Present embodiment locates to be provided with dish (2) and dish (3) at the gearwheel of shaking the head (1), and spring (4) and adjusting knob (10).As shown in Figure 1 and Figure 4, the dish (2) that has straight trough (R) combines with the gearwheel of shaking the head (1) by its projection or groove, has the dish (3) and axle (8) riveting jail of spiral chute (S), and by axle (8) and adjusting knob (10) concrete mutually.The length of spiral chute (S) is generally got 240 °～270 ° less than 360 °, is through slot.The elastic force of spring (4) sticks together dish (2), dish (3) and the gearwheel of shaking the head (1), become an assemblying body that rotates, just when electric fan is shaken the head swing, can regard dish (2), dish (3) and the gearwheel of shaking the head (1) as an integral body.With wave garden pin (6) and cover (7) insertion dish (2) that connecting rod (5) links to each other and coil in the groove of (3), because the degrees of freedom of garden pin (6) and cover (7) garden Zhou Fangxiang is coiled the straight trough (R) of (2) and is limited, the spiral chute (S) that the degrees of freedom of radial direction is coiled (3) limits, so can think that pin (6) and cover (7) thereof are defined fully with respect to the planar degrees of freedom of the gearwheel assemblying body of shaking the head.Turn adjusting knob (10), dish (3) is rotated, change garden pin (6) and cover (7) relative position in spiral chute (S), but dish (2) and the gearwheel of shaking the head (1) are pinned by the worm and gear transmission, can not rotate with dish (3), garden pin (6) and cover (7) just move in the straight trough (R) of dish (2), and just the radial direction along the gearwheel (1) of shaking the head moves, thereby changed crank length (l), reached the purpose of conversion pivot angle scope.

Among Fig. 1, (13) be casing, (14) be Box Cover, (15) be shell, collide for the layout that makes casing (13) rationally and not makes axle sleeve (9) and motor worm axle, the shaft axis of the gearwheel of shaking the head (1) can be centered on the shaft axis of small gear (12) to angle of inner rotary.

Fig. 1 Intermediate shaft sleeve (9) is combined into one with the gearwheel (1) of shaking the head.Knob (11) control that is used for not shaking the head, depress adjusting knob (10) and (11), and knob (11) slightly changeed an angle, the groove of axle sleeve (9) just is limited in extreme lower position with knob (11) and can not resets, so dish (2), dish (3) break away from fully with the gearwheel (1) of shaking the head, dish (2) and dish (3) no longer rotate, and electric fan stops to shake the head.

Embodiment two

In Fig. 2, embodiment one the dish (2) and the gearwheel (1) of shaking the head are integrated, promptly on the gearwheel of shaking the head (1a), open a straight trough (R) along radial direction.Garden Zhou Fangxiang at dish (3a) has spiral chute (S1).Different with embodiment one, the length of spiral chute (S1) is generally got about two circles greater than 360 ° in the dish (3a), is through slot not, groove depth have only dish (3a) thickness half or smaller.Turn adjusting knob (10a), dish (3a) is rotated with change garden pin (6a) and cover (7a) radial position in the gearwheel of shaking the head (1a), thus the pivot angle scope of regulating the electric fan head.

Embodiment three

As shown in Figure 3, present embodiment also is that embodiment one the dish (2) and the gearwheel (1) of shaking the head are integrated, and promptly opens a straight trough along radial direction (R) on the gearwheel of shaking the head (1b).Spiral chute (S2) on the dish (3b) is identical with the dish (3) among the embodiment one, and promptly spiral chute (S2) connects along the thickness direction of dish (3b), and the helical length of groove (S2) is got 240 °～270 °.

In above-mentioned three embodiments, embodiment one comprises the control of not shaking the head, and a grade conversion pivot angle scope can be arranged.Embodiment two belongs to stepless transformation pivot angle scope, and embodiment three belongs to a grade conversion pivot angle scope, but embodiment two and three does not comprise the control of not shaking the head.When being used for the fan product, can keep the clutch (not shown) of existing product on small gear (12a) or (12b) axle to realize not shaking the head control.

Claims

1, a kind of automatic head-shaking device of can regulate pivot angle scope, pass through first-stage worm gear worm speed-down and primary gear speed reducing by motor shaft, the drive canine tooth crop rotation slow rotation of shaking the head, it is reciprocating that connecting rod is waved in the gearwheel of shaking the head drive, make desk fan, stand fan, the head reciprocally swinging of product such as heating device or warm-air drier, it is characterized in that being provided with on the axle of the gearwheel of shaking the head one has the dish of straight trough and one along the gearwheel radial direction basically and has the spiral fluted dish along gearwheel garden Zhou Fangxiang, these two dishes stick together under the elastic force effect of spring, and wave the garden pin that connecting rod is connected and insert in the straight trough and spiral chute of these two dishes.

2, device according to claim 1 is characterized in that the dish that has straight trough combines with the gearwheel of shaking the head.

3, device according to claim 1, the dish that it is characterized in that having straight trough is integrated with the gearwheel of shaking the head, and promptly opens one basically along the straight trough of radial direction on the gearwheel of shaking the head.

4,, it is characterized in that having the spiral fluted dish and combine with adjusting knob by axle or axle sleeve according to claim 1 or 2 or 3 described devices.

5, according to claim 1 or 2 or 3 described devices, it is characterized in that having its spiral fluted length of spiral fluted dish is less than 360 °, for through slot can be greater than 360 ° for through slot.