CN2310237Y

CN2310237Y - Lamp light-regulating indicator

Info

Publication number: CN2310237Y
Application number: CN97229679U
Authority: CN
Inventors: 邬林楚
Original assignee: MINGKEDA ELECTRIC APPLIANCE INDUSTRIAL Co Ltd HESHAN CITY
Current assignee: Mingkeda Electric Appliances Industry Co., Ltd., Heshan City
Priority date: 1997-10-17
Filing date: 1997-10-17
Publication date: 1999-03-10
Anticipated expiration: 2007-10-17

Abstract

The utility model relates to a lamp light-regulating indicator. An external gear is arranged on a shaft core of a variable potentiometer. The external gear is engaged with an internal gear which is provided with an indicating needle, and the tooth number of the internal gear is larger than the tooth number of the external gear. Because the tooth number of the internal gear with the indicating needle is larger than the tooth number of the external gear on the shaft core of the variable potentiometer, the rotation speed of the indicating needle is slower than the speed of the shaft core and the photometric value disk is increased correspondingly when the rotation amplitude of the indicating needle is increased. Thus, the indicating needle is easily align to a certain photometric value and the accuracy of regulating light is improved. The utility model has the advantage of simple and reliable structure, and can be widely used for light-regulating lamps.

Description

A kind of light fixture light modulation indicator

The utility model relates to a kind of light modulation indicator, especially a kind of light fixture light modulation indicator.

Existing light fixture light modulation all is that knob by the rotation variable potentiometer changes the electricity sun and reaches then that to change bulb voltage realistic existing as the desk lamp light modulation; The indication of bulb luminosity generally all is to fix a root pointer on the knob of rotary-type variable potentiometer, make turning knob change potentiometer resistance with when changing the bulb luminosity, pointer on the knob is aimed at some luminous values, to reach the purpose of pilot bulb luminosity; Because pointer is directly to be contained on the knob, pointer and knob be simultaneously with the speed running, make must make pointer aim at a certain luminous value will be careful unusually, otherwise just be difficult for the needed shading value of aligning; Moreover the amplitude of rotating because of pointer is little, and correspondingly luminosity numerical value dial plate is little, and the distance between luminosity numerical value is very little, can influence the accuracy of light modulation.

The purpose of this utility model is to provide the light fixture light modulation indicator of the axle core speed that a kind of speed of luminosity pointer is slower than variable potentiometer, and the rotation amplitude of pointer increases.

The utility model is to realize above-mentioned purpose like this: adorn an external gear on the rotation axis core of variable potentiometer, the many internal gears of the gear ratio external gear number of teeth that will have pointer are assembled together, make their engagements, on external gear or the internal gear rotary handle is housed, like this since the gear ratio of internal gear of band pointer to be contained in the number of teeth of the external gear on the rotating shaft core of variable potentiometer many, the velocity of rotation of pointer just is slower than a core speed, has increased the rotation amplitude of pointer.

Because the utility model is to adorn an external gear on the axle core of variable potentiometer, the internal gear engagement of the band pointer more than external gear and the gear ratio, when so just making the axle core rotation of variable potentiometer, the velocity of rotation of pointer is slower than a core velocity of rotation, and the rotation amplitude of pointer increases, correspondingly luminosity numerical value dish becomes big, just can make a certain shading value on the very easy alignment light scale of pointer, has improved the accuracy of light modulation.

Below in conjunction with accompanying drawing the utility model is done concrete detailed description the in detail.

Fig. 1 is the axonometric drawing of the present utility model of band rotary handle on the external gear;

Fig. 2 is the axonometric drawing of the present utility model of band rotary handle on the internal gear;

With reference to Fig. 1, part 6 is rotating shaft core formula variable potentiometers, a gear-box 3 is equipped with nut 5 in the inner end of the axle core 9 of potentiometer 6, gear groove 12 is arranged in the gear-box 3, gear groove 12 is made of external tooth race 13 and internal tooth race 11, the center of circle of internal tooth race 11 is eccentric with respect to external tooth race 13, the center of circle of internal tooth race 11 is outside on the gear grooved 13, on the axle core 9 of variable potentiometer 6 external gear 10 is housed, external gear 10 meshes with the internal gear 4 of the gear ratio external gear more than 10 that has pointer, have rotary handle 7 on the external gear 10, external gear 10 and the internal gear 4 that is engaged with are contained in the gear groove 12 of gear-box 3, be that external gear 10 is contained in the external tooth race 13, internal gear 4 is contained in the internal tooth race 11, and part 1 is a luminosity numerical value dial plate, and it is contained on the gear-box 3, the shell 8 of band transparent window 2 also is housed on the gear box cover 3, the through hole 15 in order to stretch out rotary handle 7 is arranged on the shell 8.

With reference to Fig. 2, rotary handle 7 is on internal gear 4, and pointer also is on internal gear 4, and other structure is identical with the described structure of Fig. 1.

Claims

1, a kind of light fixture light modulation indicator, comprise rotating shaft core formula variable potentiometer (6) and luminosity numerical value dial plate (1), the axle core (9) that it is characterized in that variable potentiometer (6) is equipped with an external gear (10), internal gear (1) engagement that external gear (10) is many with the gear ratio external gear (10) that has pointer has rotary handle (7) on external gear (10) or the internal gear (4).

2, a kind of light fixture light modulation indicator according to claim 1 is characterized in that external gear (10) and the internal gear (4) that is engaged with is to be contained in the gear groove (12) of gear-box (3).

3, a kind of light fixture light modulation indicator according to claim 2, it is characterized in that gear groove (12) is made of external tooth race (13) and internal tooth race (11), the center of circle of internal tooth race (11) is eccentric with respect to external tooth race (13), and the center of circle of internal tooth race (11) is outside on the center of circle of gear grooved (13).

4. a kind of light fixture light modulation indicator according to claim 1 is characterized in that also being equipped with on the gear-box (3) shell (8) of being with transparent window (2).

5, a kind of light fixture light modulation indicator according to claim 4 is characterized in that having on the shell (8) in order to stretch out the through hole (15) of the rotary handle (7) that is equipped with on external gear (10) or the internal gear (4).