CN2412490Y - Device for opening and closing curtain - Google Patents

Abstract

The utility model relates to a device for freely opening and closing curtains; the utility model is compose of a shell body, a coaxial driving wheel, two linear wheels and a driving wheel steering mechanism composed of a rocker arm, a ratchet, a cradle, a pusher dog, a spring, etc. When the utility model is arranged, a slide rail is arranged at the upper surface of a window frame; one side of the sliding rail is provided with a fixed pulley, and one side is provided with installation hooks; the utility model is fixed to the installation hooks; a repeated line passes around the fixed pulley from a linear wheel to the other linear wheel; the driving wheel is rotated by pulling the pull wire, a linear wheel is used for releasing wires and a linear wheel is used for collecting wires so that the curtain can be freely opened or closed. The utility model has the advantages of novel structure, small size, easy and convenient installation and operation, and labor saving, which is suitable for curtains with various orbits and various spoke widths.

Description

The random open and close device of curtain

The utility model relates to a kind of utensil by single backguy control curtain open/close.

The folding curtain is the thing that often will do in the life, for making things convenient for curtain open/close, now having designed some single stay curtain controllers, is that the steering mechanism of 2269798 Single cord guide for curtain, its driving wheel of forming by coaxial driving wheel, two lines wheel, backguy and by large and small gear, clockwork spring, torsion spring, rocking bar and pusher dog, rocking arm, double wedge, ratchet etc. constitutes as publication No..Because of its control is by large and small gear transmission clockwork spring storage power, so volume is still bigger, and gear wherein and rocking bar destructible.In addition two lines wheel, driving wheel wire casing do not have block material outward, and three-wheel is winding the line and easily getting lines crossed, and during work, past multiple line has sagging, influences attractive in appearance.It is difficult to install in addition, thereby has influenced it and promote the use of.

The purpose of this utility model is at the existing problem of above-mentioned Single cord guide for curtain, aim to provide a kind of volume littler, do not get lines crossed, toward not sagging, the stable performance of multiple line, curtain open/close device easy to operate.

The implementation of the utility model purpose is, the random open and close device of curtain comprises housing 1, the driving wheel 11 with axis 5, two lines wheel 9, backguy 6, and wheel protects wire casing in week, and the axis two ends are fixed on the housing.In two lines wheel wheel week ratchet is arranged, driving wheel stretches in the two lines wheel ratchet slot, axis 5 overcoat T shape main wheels lid 21, dress clockwork spring 4 on the ratchet of bottom.Main wheel covers an end and is fixed on the main wheel lid end one end and main wheel lid peace ratchet axle 10 between the end with sunk screw, and the equal tooth at ratchet 3 two that the ratchet axle is outer interlaces in the centre; One end is fixed on the driving wheel hollow wall, peace rocker arm shaft 13 on it, peace reel cage 23 and lay respectively at a pair of rocking arm 2 of ratchet 3 top and the bottom on the rocker arm shaft.Rocking arm 2 colludes end and stretches in people's ratchet 3 grooves, other end termination 25 can be stretched out outside the driving wheel under the compression spring action, with line wheel inwall ratchet engagement, 5 of reel cage 23 1 ends and axis are connected with flexible cord 22, and end dress pusher dog 19 has pressure arm fork 24 being positioned at 25 crooks, termination, directed axis 16 is positioned at the bottom of the driving wheel, directed card 18 is arranged on the directed axis, and directed card pusher dog under the effect of compression spring 17,20, is pressed in the ratchet 3 same grooves respectively.The wire casing that protects of driving wheel 11, line wheel 9 has soft friction pulley 8,12 outward.The equal tooth 31 in ratchet 3 two is 4 teeth, and middle zigzag tooth 30 is 8 teeth.

The utility model is described with reference to the accompanying drawings.

Fig. 1 the utility model structural representation

Fig. 2 driving wheel steering mechanism structural representation

Fig. 3 hold-down hook deployed configuration schematic diagram

Fig. 4 ratchet flat deployable structure schematic diagram

With reference to accompanying drawing, during installation, on window frame, adorn slide rail, slide rail one side sets pulley, and a side hangs hold-down hook admittedly, and hold-down hook 7 is " " shape, and the fixedly fixing hole 26 of open and close device is arranged on its horizontal plane 29, and long end 27 has the groove 28 that communicates with slide rail.The curtain open/close device is fixed by bolts on the horizontal plane 29 by hole 26, and the groove 28 of long end 27 is over against slide rail.

Before the use, the termination 25 pressed arms fork 24 of two rocking arms 2 is pushed down, and can not stretch out driving wheel 11 and take turns outside week.During use, the backguy in several weeks of wire casing is protected in pulling around driving wheel, driving wheel clockwise rotates, on the reel cage 23 the pressure arm of adorning fork loosen pressure to rocking arm end 25, one rocking arm end stretches out driving wheel wheel Zhou Yuyi line wheel inwall ratchet engagement under the effect of compression spring 14, drive this line wheel 9 and do the take-up rotation, by past multiple line, fixed pulley drives another line crop rotation unwrapping wire and rotates again.The recess that is in the ratchet section 30 that interlaces is at this moment held in colluding of the rocking arm that the rocking arm end stretches out, and another rocking arm colludes end and then is in protruding place.The flexible cord 22 that is contained in 5 of reel cage 23 on the rocker arm shaft 13 and axis simultaneously is loosening, reel cage pusher dog that the termination is adorned 19 is under the effect of compression spring 15, equal tooth 29 residing ratchet slots are retracted into next ratchet slot from two of living in, 18 on directed card withstands in the former ratchet slot, play orientation, the clockwork spring 4 that this moment, the axis ratchet was blocked is stressed.

Loosening a little backguy, driving wheel rotates counterclockwise under clockwork spring 4 tension force effects together with backguy, begins to draw a little as long as not exclusively loosening backguy does not go back to it, and rocking arm, pusher dog, line wheel etc. all are failure to actuate.Spur backguy again, retractable line wheel continues to receive, the rotation of unwrapping wire action, and clockwork spring is stressed again simultaneously.Backguy so repeatedly, loose ends can make the unlimited rotation of line wheel, continue the action of curtain opening and closing, so the utility model can be used for the wide curtain of any spoke.

When curtain is opened or be bonded to desired location, loosen backguy fully, driving wheel rotates counterclockwise to be back to together with backguy and begins to draw a little, axis twines flexible cord 22, flexible cord 22 collapses tightly, and drives reel cage 23, and the rocking arm termination that the rocker shaft yoke 24 on the reel cage will stretch out pushes back, pusher dog pushes away a ratchet with ratchet before axially, is in the ratchet slot position at directed card 18 places.The end that colludes of withdrawal rocking arm falls within protrudingly from the recess of the ratchet section 30 that interlaces, another rocking arm colludes end and then misplaces to recess from protruding.This moment, the commutation action was finished.The pressure arm fork loosens its end pressure, and the rocking arm end that is in recess stretches out outside the driving wheel, with line wheel inwall ratchet engagement.Spur backguy again, action is that former take-up pulley becomes actinobacillus wheel, actinobacillus wheel becomes take-up pulley as described above, promptly original draw back or the drawing action becomes drawing or draws back action.

Begin to draw a little owing to have only driving wheel to be repositioned to, two rocking arms could alternately stretch out, and withdrawal driving wheel wheel week is so begin not draw a little as long as driving wheel does not return, opening and closing movement can continue, and folding is to the optional position, as long as loosening fully backguy, driving wheel is return begun to draw a little to get final product, folding is random, and spoke is wide arbitrarily.

Outer soft friction pulley 8, the line wheel of driving wheel wire casing protects the outer soft friction pulley 12 of wire casing, both can guarantee that the line between the three-wheel do not getting lines crossed, and can guarantee toward multiple line not sagging again.

The utility model novel structure, little, the easy installation of volume, easy to use laborsaving are applicable to each middle orbit, the wide curtain of various spoke.

Claims (3)

1; The random open and close device of curtain; Comprise housing (1); The driving wheel (11) of same axis (5); Two lines wheels (9); Backguy (6); Wheel protects wire casing in week; The axis two ends are fixed on the housing; In two lines wheel wheel week ratchet is arranged; Driving wheel stretches in the two lines wheel ratchet slot; It is characterized in that axis (5) overcoat T shape main wheel lid (21); Fill clockwork spring (4) on the ratchet of bottom; At the bottom of main wheel covers an end and is fixed on initiatively wheel cap with sunk screw; Peace ratchet axle (10) between at the bottom of one end and the active wheel cap; The ratchet (3) that the ratchet axle is outer; The equal tooth at two is staggered in the centre; One end is fixed on the driving wheel hollow wall; Peace rocker arm shaft (13) on it; Broadcast a pair of rocking arm (2) of pacifying reel cage (21) on the arm axle and laying respectively at ratchet (3) top and the bottom; Rocking arm (2) colludes end and stretches in people's ratchet (3) groove; Other end termination (25) can be stretched out outside the driving wheel under Compress Spring (14) effect; With line wheel inwall ratchet engagement; Reel cage (21) is established pressure arm fork (24); One end is connected 5 with axis) between connect with flexible cord (22); One end dress pusher dog (19); Pressure arm fork (24) is arranged being positioned at crook, termination (25); Directed axis (16) is positioned at the bottom of the driving wheel; On the directed axis directed card (18) is arranged; Directed card; Pusher dog is respectively in Compress Spring (17); (20) under the effect, be pressed in the same groove of ratchet (3).

2, open and close device according to claim 1 is characterized in that the wire casing that protects of driving wheel (11), line wheel (9) has soft friction pulley (8), (12) outward.

3, open and close device according to claim 1, it is characterized in that the equal tooth in ratchet (3) two (31) is that 4 teeth, middle zigzag tooth (30) they are 8 teeth.

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