CN2384542Y - Endless curtain opening-closing device - Google Patents

Abstract

The utility model relates to an endless curtain opening-closing device composed of a shell body, a coaxial driving wheel, two linear wheels, a pull wire and a driving steering mechanism. The steering mechanism is composed of a rocking arm, a ratchet, a rocking rod, a deflector rod, a spring, a screw, a center shaft screw rod, etc. When the utility model is installed, 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; a folding device is fixed to the installation hooks; a repeated line passes around the fixed pulley from a linear wheel to the other linear wheel; the curtain can be freely pulled apart or folded by pulling or loosening the pull line. The utility model has the advantages of novel and simple structure, small size, easy installation and a plurality of functions, which can be suitable for single-spoke or multi-spoke curtains with various sliding rails and various spoke widths.

Description

The electrodeless open and close device of curtain

The utility model relates to the unlimited device of controlling the folding of holding court from behind a screen of a kind of single backguy.

The folding curtain is the thing that often will do in the life, for making things convenient for curtain open/close, some single stay curtain controllers have now been designed, as publication No. is 2269798 Single cord guide for curtain, and it is made of coaxial driving wheel, two line rails, backguy and the driving wheel steering mechanism that is made up of large and small gear, clockwork spring, torsion spring, rocking bar and pusher dog, rocking arm, double wedge, ratchet.Though it is that driving wheel hollow, three-wheel are coaxial, because of control is storage power by big or small gear transmission clockwork spring, so volume is still bigger, and gear and rocking bar are fragile, and three-wheel is winding the line and easily getting lines crossed, toward multiple line sagging is arranged, and installs inconvenient.

The purpose of this utility model is at the existing problem of above-mentioned device for opening and closing curtain, aim to provide a kind of volume littler, do not get lines crossed, not sagging, easy to operate toward multiple line, can be supporting, the curtain open/close device that can make wide hold court from behind a screen random break-in, folding of various spokes with various tracks.

The utility model purpose implementation is:

The electrodeless 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.Stretch into the driving wheel hollow in the two lines wheel ratchet week groove.The axis hypomere has the ratchet that snaps in clockwork spring 4, and the stage casing is the screw mandrel supporting with nut 21, cover T shape main wheel lid 13 on the screw mandrel axle sleeve 14 of screw mandrel top.At the bottom of main wheel covers an end and is fixed on initiatively wheel cap with sunk screw, an end and initiatively at the bottom of the wheel cap between peace ratchet axle 10, the equal tooth at ratchet 3 two that the ratchet axle is outer interlaces in the centre, end peace rocker arm shaft 26.Peace rocking bar 25 and lay respectively at a pair of rocking arm 2 of ratchet 3 top and the bottom on the rocker arm shaft.Rocking arm colludes end and stretches in ratchet 3 grooves, and another termination 22 can be stretched out outside the driving wheel under the effect of compression spring, with line wheel inwall ratchet engagement.Rocking bar is positioned at 22 places, rocking arm termination pressure arm fork 23, and the other end has shifting block 15, and shifting block stretches in ratchet 3 grooves, the middle part have with nut 21 on the plush copper 27 that offsets of plush copper 29.Set at the bottom of the driving wheel to axis 17, directed card 18 is arranged on the directed axis, directed card one end stretches in ratchet 3 grooves, and an end props up the driving wheel limit.The dress axis of guide 19 at the bottom of the driving wheel, the guiding fork 20 jaws fork on the nut is to the axis of guide 19.

Driving wheel 11, the wire casing that protects of line wheel 9 has soft friction pulley 8,12 outward.The equal tooth 30 in ratchet two is 3 teeth, and middle zigzag tooth 31 is 6 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 steering mechanism action part structural representation

Fig. 4 hold-down hook deployed configuration schematic diagram

Fig. 5 ratchet flat deployable structure schematic diagram

With reference to accompanying drawing, during installation, an end sets pulley below slide rail is installed above the window frame, makes a detour, and an end installs hold-down hook 7, and the curtain open/close device is fixed by bolts on the horizontal plane 32 by hole 33, and the groove 35 of long end 34 is over against slide rail.

Before the use, the termination 22 pressed arms fork 23 of two rocking arms 2 is pushed down, and can not stretch out driving wheel 11 and take turns outside week.During use, pulling is around the backguy of several weeks of driving wheel wire casing, driving wheel clockwise rotates, nut 21 and on guiding fork 20 rotate with driving wheel, under the screw mandrel effect of axis stage casing, removed pressure to rocking bar 24 plush coppers 27, also removed the pressure of 23 pairs of rocking arm terminations 22 of pressure arm fork, driving wheel wheel week is stretched out in a rocking arm termination under the effect of compression spring 25, with the engagement of line wheel inwall, drive it and do the take-up running, rotate by driving another line crop rotation unwrapping wire again toward multiple line, fixed pulley.The recess that is in the ratchet section 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.Because of the pressure that nut plush copper 29 is removed rocking bar plush copper 27, the rocking bar shifting block is retreated in next ratchet slot by ratchet slot of living under the effect of compression spring 16, and 18 on directed card withstands in the former ratchet slot, plays orientation.This moment is stressed by the clockwork spring 4 that the axis ratchet is blocked.

Loosening a little backguy, driving wheel rotates counterclockwise under the effect of clockwork spring tension force together with backguy, begins to draw a little as long as not exclusively loosening backguy does not go back to it, and the plush copper on the nut just can not pushed up with the plush copper on the rocking bar mutually, and rocking arm, shifting block etc. all is failure to actuate.Spur backguy again, the retractable line action of line wheel continues, and clockwork spring is stressed again simultaneously.Backguy so repeatedly, loose ends can make the unlimited rotation of line wheel, continues the action of curtain opening and closing.So this open and close device 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 returns the beginning together with backguy and draws a little under the effect of clockwork spring tension force, nut 21 rotates on screw mandrel, plush copper 29 on it to rocking bar plush copper 27 near and withstand mutually, the pressure arm fork 23 rocking arm terminations that will stretch out on the rocking bar 24 push back, and shifting block promotes ratchet changes a tooth angle degree, and shifting block falls in the directed card 18 place ratchet slots.The end that colludes of withdrawal rocking arm misplaces in protruding from the recess of the ratchet section 31 that interlaces, and another rocking arm colludes end then from the protruding recess that drops down onto, and this moment, the commutation action was finished.Spur backguy once more, the pressure arm fork loosens the pressure to rocking arm termination 22, and stretch out outside the driving wheel rocking arm termination that is in recess, with another line wheel inwall ratchet engagement.Action is that former take-up pulley becomes actinobacillus wheel as described above, and actinobacillus wheel becomes take-up pulley, 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 as long as driving wheel is not return to be begun to draw a little, opening and closing movement can continue.Folding is to the optional position, as long as loosening fully backguy makes driving wheel return the beginning and draws a little, can locate.Available hand was taken off curtain and was realized opening and closing because rocking arm pressed arm fork pushes back in the driving wheel, and two lines wheel is in free state this moment.The utility model folding is random, and the folding spoke is wide arbitrarily, and spoke is wide can be infinitely great.

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 is simple, and little, the easy installation of volume, function be neat, the curtain of, many spokes wide, single applicable to various tracks, various spoke.

Claims (4)

1; Endless curtain opening-closing device; 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; Stretch into the driving wheel hollow in the two lines wheel ratchet week groove; It is characterized in that the axis hypomere has the ratchet that snaps in clockwork spring (4); The stage casing is the screw mandrel supporting with nut (21); Screw mandrel axle sleeve (14) the upper cover T shape main wheel lid (13) of screw mandrel top; At the bottom of main wheel covers an end and is fixed on driving wheel with sunk screw; Peace ratchet axle (10) between at the bottom of one end and the active wheel cap; The equal tooth at ratchet (3) two that the ratchet axle is outer is staggered in the centre; One end peace rocker arm shaft (26); Pacify rocking bar (21) on the rocker arm shaft and lay respectively at a pair of rocking arm (2) of ratchet (3) top and the bottom; Rocking arm colludes end and stretches in ratchet (3) groove; Another termination (22) can be stretched out outside the driving wheel under the effect of Compress Spring; With line wheel inwall ratchet engagement; Rocking bar is positioned at rocking arm termination (22) and has located pressure arm fork (23); The other end has shifting block (15); Shifting block stretches in ratchet (3) groove; The middle part have with nut (21) on the plush copper (27) that offsets of plush copper (29); Set at the bottom of the driving wheel to axis (17); On the directed axis directed card (18) is arranged; Directed card one end stretches in ratchet (3) groove; One end props up the driving wheel limit; The dress axis of guide (19) at the bottom of the driving wheel, the guiding fork on the nut (20) jaw is pitched to orientation axes (19).

2, open and close device according to claim 1 is characterized in that reel cage shifting block (15) is " C " type.

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

4, open and close device according to claim 1 is characterized in that the equal tooth in ratchet (3) two (30) is 3 teeth, and middle zigzag tooth (31) is 6 teeth.

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