CN2140678Y - Electric device for opening and closing curtains - Google Patents

Abstract

The utility model relates to an electric device for opening and closing curtains, comprising a housing, a speed changing mechanism, a main shaft, a rope winding wheel, etc. Because the main shaft of the device is provided with a rope winding wheel for a blind curtain, a textile curtain and the blind curtain can be opened and closed under the conversion of a shifting fork. The device is added a slice turning device for the blind curtain, and the blades of the blind curtain can be optionally turned over within 150 DEG, thus achieving the function of a plurality of uses when the utility model is installed one time.

Description

Electric device for opening and closing curtains

The utility model belongs to a kind of electrically driven curtain headstock gear.

Existing electrically driven curtain headstock gear can only opening and closing left and right textile curtain.In the time need installing and using sun blind summer, this kind device just can't be used for opening and closing sun blind.

Task of the present utility model is that a kind of electrically driven curtain headstock gear of can opening and closing left and right textile curtain, again can upper and lower keying sun blind will be provided.The purpose of this utility model is to realize like this, drive a main shaft by micromotor by reducing gear, the center fixed of axle has a traction wheel, two respectively are equipped with a reel about traction wheel, the draught line of package traction textile curtain on reel, package sun blind draught line on the another reel, these two reels are changed folding textile curtain or are opened and closed sun blind with this by the clutch of fork controls itself and traction wheel.Further improvement of the utility model is that the other end (with respect to an end of power intake) at power transmission shaft is equipped with a pair of gear, pellet shot from a slingshot is arranged on the driving gear, the clutch stopping means that spring constitutes, take turns by the sheet that turns on the transmission drive plate-turning shaft of gear, can make the blade of shutter stir certain angle.

Below in conjunction with description of drawings embodiment of the present utility model, Fig. 1 is the front view of this device, and Fig. 2 is the side view of this device.

1 is main shaft in Fig. 1, and is installed in the shell 3 by bearing 2, and shell 3 is installed on the curtain rod arm 4 by screw.Main shaft 1 one ends (being right-hand member among the figure) are connected with the motor 6 that has planet speed change mechanism 5, are fixed with traction wheel 7 by screw or other mounting means in the middle of the main shaft 1.On the main shaft 1 that traction wheel is about 7 two reel 8 and 9 are installed, the 10th, shift fork, its two jaw embeds the interior (see figure 3) of fork slot of reel 8 and 9, stir reel 8 left and link to each other when dial staying 10 with traction wheel 7, the external tooth engagement of internal tooth on it and traction wheel 7, connect the 12V dc source, motor 6 drives main shaft 1 by reducing gear 6 and rotates, and the traction wheel 7 on the main shaft 1 drives reel 8 and rotates, and this moment, reel 9 did not rotate, two metallic channels are arranged on the reel 8, in can adorn the curtain backguy, and link to each other with curtain by lead frame 11, during reel 8 rotations, one wire casing unwrapping wire, a wire casing take-up.(otherwise motor 6 reverse then retractable line also) can control the folding of curtain.When shift fork 10 is stirred to the right, reel 9 links to each other with traction wheel 7, this advances under the drive of traction wheel 7, reel 9 rotates, and drives sun blind backguy take-up or unwrapping wire in its wire casing, and the sun blind backguy links to each other with louvers of jalousie 14 by guide roller 12, pulley 13, roll sun blind during take-up, put down sun blind during unwrapping wire, at this moment, reel 8 does not rotate.

For the blade 14 that makes sun blind can overturn, this electrically driven curtain headstock gear also attaching has Sheet turning device.Its structure is such, the other end of main shaft 1 (end of motor relatively) is set with gear wheel 15, have a screw and main shaft 1 to communicate on it, the pellet shot from a slingshot 16 in the screw compresses on the main shaft 1 by spring 17 and holding screw 18, rotates with main shaft by this pressure gear wheel 15.When the moment of torsion of gear wheel 15 transmissions surpassed the moment of friction that the pressure of spring 17 produces, then gear wheel 15 did not rotate with main shaft 1.When gear 15 rotates, then drive and turn over plate gear 19 rotations, and drive and turn over flat axle 20 rotations that plate gear 19 is connected, turn over backstop boss 21 is arranged on the plate gear 19, go to its backstop boss 21 and shell 3 when colliding when turning over plate gear 19 with gear wheel 15, because driving torque strengthens, main shaft 1 idle running, guaranteed like this to turn over 19 of plate gears at 150 degree with interior rotation.Be equipped with on the flat axle 20 and turn over sheet wheel 22, the sheet line 23 that turns on it is connected (see figure 4) with louver lamina 14, under the drive of turning over the flat axle 20 of sheet, by control motor 6, can make blade 14 upset in 150 degree arbitrarily angled like this.

Claims (2)

1, a kind of electrically driven curtain headstock gear is made up of shell 3, motor 6, gear 5, main shaft 1 and reel 8 etc., it is characterized in that:

Also be set with reel 9 on A, the main shaft 1, traction wheel 7,

B, shift fork 10 is housed on shell, its two jaw embeds in the fork slot of reel 8 and 9.

2, a kind of by the said electrically driven curtain headstock gear of claim 1, it is characterized in that gear wheel 15 being installed at said main shaft 1 one ends, holding screw 18, spring 17 and pellet shot from a slingshot 16 are installed in the gear wheel 15, with gear wheel 15 engagement turn over plate gear 19 in the middle of be coated with flat axle 20, be equipped with on the flat axle 20 and turn over sheet wheel 22.

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