CN2078576U - Electric device for opening and closing curtains - Google Patents

Abstract

The utility model discloses an electric device for opening and closing curtains, and the guiding mechanism of the electric device for opening and closing curtains comprises a worm screw, a worm wheel, a fixing positioning pin, a tunable positioning pin, a converting switch and a bidirectional control switch. A gear wheel on the worm screw and a gear wheel in a retarding mechanism are meshed. A columnar gear wheel at the left end part of the worm screw is meshed with the worm wheel, and the worm wheel is fixed on the fixing rack of the guiding mechanism. The leading fixing rack, a housing and the fixing rack of the gear wheel are fixed and become an integration. The electric device for opening and closing curtains solves the defects that the forepassed electric curtain uses commercial power and can not open or close the curtain when the commercial power is cut off. The utility model has the advantages of simple structure and low cost, and the utility model is widely suitable for public places such as households, hotels and offices.

Description

The electrically driven curtain device

The electrically driven curtain device belongs to the automatic pilot of curtain.

Prior art under the utility model in the field is: roller shutter type automatic curtain device, this device mainly is made up of parts such as motor, decelerator, transformer, rectifying tube, guiding mechanisms, though also have the automatic curtain function, owing to adopt AC power, when running into power failure, then curtain can't be opened or close, and in addition, this device motor adopts 12 volts on the automobile, 6 watts of permanent magnetism windshield wiper type motor, cause the circuit complexity, the cost cost is higher, inapplicable general family.

The purpose of this utility model is to overcome the deficiency of said apparatus, design a kind of simple in structure, cost is low, adopt dry cell as power supply, be not subjected to the restriction of electric power thus supplied, be particularly suitable for family and use, be suitable for the electrically driven curtain device that public places such as hotel, office use yet.

Design of the present utility model is: the electrically driven curtain device, by shell, reducing gear, motor 10, power supply, guiding mechanism is formed, guiding mechanism is by worm screw 11, worm gear 12, fixed locating stud 13, adjustable alignment pin 17, change-over switch 1, two-way gauge tap 2 is formed, gear 4 on the worm screw 11 and reducing gear engagement, column gear 14 on the worm screw 11 and worm gear 12 engagements, fixed locating stud 13 is arranged on the worm gear 12, adjustable alignment pin 17, adjustable alignment pin 17 places in the hole on the worm gear 12, and can regulate by screw, the height of window and width, adjustable alignment pin 17 is placed in the different hole of worm gear 12, can regulate rotation time, thereby reach suitable purpose.Worm gear 12 is fixed on the guiding mechanism fixed mount 15, guiding mechanism fixed mount 15 and shell, gear fixed mount 8 is solidified as a whole, two-way gauge tap 2, change-over switch 1 is fixed on the guiding mechanism fixed mount 15, the moving point 18 of change-over switch 1 links to each other with the dead point 23 and the positive source of two-way gauge tap 2, the dead point 19 of change-over switch 1 connects terminals of motor, the moving point 21 of the two-way gauge tap 2 of another wiring termination of motor, the dead point 22 of two-way gauge tap 2 connects the dead point 20 of conversion switch 1, dead point 20 links to each other with power cathode, and the middle extension arm of change-over switch 1 places on the worm gear 12; Worm screw 11 is by column gear 14, output shaft 7, gear 4 is formed, column gear 14 is positioned at the left part of output shaft 7, gear 4 is positioned at the left part of output shaft 7, being meshed of gear 4 on the output shaft 7 and reduction gearing 5, reduction gearing 5 and reduction gearing 3 are meshed, reduction gearing 3 and motor main shaft output shaft 9 are meshed, thereby formation reducing gear, reduction gearing all is fixed on the gear fixed mount 8 in the reducing gear, gear fixed mount 8 is fixed on the shell and links to each other with guiding mechanism fixed mount 15, guiding mechanism fixed mount 15 is fixed on the shell, guiding mechanism fixed mount and gear fixed mount 8 both can be to be fixed on the shell with nail, also can once be made of one.Motor adopts miniature small machine, and motor is fixed on the shell, and power supply adopts dry cell to make power supply, and two-way gauge tap 2 can be fixed on the guiding mechanism fixed mount 15, adopts backguy control, also can draw outside this device.

Be described further below in conjunction with the structural principle of accompanying drawing: show as Fig. 3 to this electrically driven curtain device, place the contact 21 that connects positive source when two-way gauge tap, when change-over switch placed the contact 19 that joins with power cathode, motor just is made as to be changeed, on the curtain volume, when on the curtain during to predetermined altitude, alignment pin cuts change-over switch on the worm gear, and itself and one 2 contact 3 that connects positive source are joined, and has just reached the change poles purpose, make whole device be in the state treated down, its circuit diagram is Fig. 4; Fig. 5 spurs two-way gauge tap for another example, when making it place contact 20 that joins with power cathode, the motor counter-rotating, curtain puts down, when down to the precalculated position, alignment pin on the worm gear blocks change-over switch, makes its whole device be in the state for the treatment of, circuit state such as Fig. 6.

Advantage of the present utility model is simple in structure, adopts dry cell to make power supply, is not subjected to the restriction of electric power thus supplied, is specially adapted to general family and uses, and is applicable to that also public places such as hotel, restaurant, office use.

Description of drawings:

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the guiding mechanism schematic diagram

Fig. 3 just changes for establishing motor, the circuit state figure that curtain is being rolled up.

Fig. 4 is for treating circuit state figure of following time to the precalculated position curtain on the curtain.

Fig. 5 is the motor counter-rotating curtain circuit state figure in following time.

Fig. 6 is curtain circuit state figure when the precalculated position curtain is treated.

Figure number explanation: the two-way gauge tap K of 1--change-over switch K 2--3--reduction gearing 4--gear 5--reduction gearing 6--pelmet 7--output shaft 8--gear fixed mount 9--motor main shaft gear 10--motor bar

11--worm screw 12--worm gear

13--fixed locating stud 14--column gear

15--guiding mechanism fixed mount 16--guiding mechanism

17--is adjustable, and steady pin 18--change-over switch moves point

19--change-over switch dead point 20--conversion shape dead point

The two-way control shape of the two-way gauge tap of 21--moving some 22--dead point

The two-way control shape of 23--dead point

Embodiment: accompanying drawing 1 is embodiment of the present utility model.Buy parts such as micromachine, two-way gauge tap, transfer switch, worm gear, gear on worm, carry out shell, gear fixed mount etc., press accompanying drawing 1 and the described device of specification the 5th part.

Claims (3)

1, a kind of by shell, motor, decelerator, the electrically driven curtain device that guiding mechanism etc. are formed, it is characterized in that: described guiding mechanism is by worm screw 11, worm gear 12, fixed locating stud 13, adjustable alignment pin 17, change-over switch 1, two-way gauge tap 2 is formed, being arranged in the gear 4 on the worm screw 11 and the gear of reducing gear is meshed, the column gear 14 that is positioned at the worm screw left part is meshed with worm gear 12, intrinsic fixed locating stud 13 on the worm gear 12, be equipped with adjustable alignment pin 17, worm gear 12 is fixed on the fixed mount 15 of guiding mechanism, the fixed mount 15 and the shell of guiding mechanism, gear fixed mount 8 is solidified as a whole; The moving point 18 of change-over switch 1 is connected with the dead point 23 of two-way gauge tap 2 and the positive pole of power supply, the dead point 19 of change-over switch 1 connects terminals of motor, the moving point 21 of the two-way gauge tap of another wiring termination of motor, the dead point 22 of two-way gauge tap 2 connects the dead point 20 and the power cathode of conversion switch, and extension arm places on the worm gear 12 in the middle of the change-over switch 1.

2, electrically driven curtain device according to claim 1 is characterized in that adjustable alignment pin 17 is to place in the aperture of worm gear 12, is adjustable by screw.

3, electrically driven curtain device according to claim 1 and 2 is characterized in that worm screw 11 is by column gear 14, the formation of output shaft 7 and gear 4, and wherein column gear 14 is positioned at the left part of output shaft 7, and portion's gear 4 is positioned at the left side of output shaft 7.

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