CN101302918B

CN101302918B - Automatic release curtain cloth mechanism for roll screen

Info

Publication number: CN101302918B
Application number: CN2008100984236A
Authority: CN
Inventors: 朱向荣
Original assignee: 朱晓荧
Priority date: 2007-08-27
Filing date: 2008-05-20
Publication date: 2011-07-20
Anticipated expiration: 2028-05-20
Also published as: CN101302918A; CN201254944Y

Abstract

The invention discloses a mechanism which can automatically release a window curtain and is used in a rolling curtain. The mechanism is characterized in that the mechanism consists essentially of a window curtain roller, a machine frame, a window curtain rolling/releasing mechanism which is arranged on the machine frame and drives the window curtain roller to roll, a torsion spring which is connected between the machine frame and the window curtain roller, a shaft arranged inside the spring ring of the torsion spring; a locating block with a convex head is arranged on the shaft in a way of sliding forwards and backwards and the convex head of the locating block is arranged in the spring ring of the torsion spring. Compared with the prior art, the mechanism of the invention has the advantages that the mechanism needs not to firstly release a part of the roll curtain manually and the roll curtain can automatically release the window curtain wound on the window curtain roller; in addition, no matter how large the window curtain to be released is, the high speed and the impact force of the drop of the window curtain can be overcome by convenient adjustment and the rolling is labor saving.

Description

A kind of automatic release curtain cloth mechanism for roll screen

Technical field

The present invention relates to a kind of mechanism that discharges cord.

Background technology

The automatic fallen curtain of existing casement, when needs are accepted casement, its casement be with folding mode be collected in curtain rod arm below, such collection mode is because therefore the weight of casement all concentrates on the stay cord,, need many stay cords to spur casement simultaneously, and the action of stay cord must be synchronous, so that casement folding and unfolding simultaneously successfully.This kind curtain is in case wherein stay cord disconnection will influence the normal folding and unfolding of casement, and exposed folding casement is also hidden dirt easily.In order to address the above problem, people adopt the mode of roller shutter to come automatically casement to be put down, but, because casement is to be wound on the casement reel of roller shutter, when beginning to put casement, because the casement that is wound on the casement reel does not have downward power, need artificial elder generation that roller shutter is put down a part, so that the casement that part of casement that puts down utilizes the gravity of himself will be wound on the casement reel pulls down.Though this kind curtain has solved the shortcoming of folding and retraction curtain, but, because when putting curtain, need artificial elder generation that roller shutter is put down a part, therefore, it is very inconvenient to operate, in addition, when the cloth amplitude ratio of casement bigger, when weight is heavier, the speed of its tenesmus and impact force are bigger, even adopt deceleration device, can not offset the speed and the impact force of its tenesmus well, and, along with the release of casement, the speed of casement tenesmus and impact force are also along with quick increasing, and the speed of excessive tenesmus and impact force can be destroyed the curtain relieving mechanism; During rolling,, need expend very big manpower, and along with the increasing of the casement that is discharged, needed manpower to strengthen also because casement is heavier.

Summary of the invention

Goal of the invention of the present invention is to provide a kind of and need not wants artificial elder generation that roller shutter is put down a part, roller shutter just can be automatically casement on the casement reel puts down with being wound on, and no matter the curtain that is discharged is furnished with much, all easily by regulating the high-speed and impact force that just can overcome the casement tenesmus, labour-saving automatic release curtain cloth mechanism for roll screen during rolling.

The present invention realizes like this, by casement reel, frame, be arranged on casement rolling/relieving mechanism that the drive casement reel on the frame rotates, be connected torque spring between frame and casement reel, the axle that is arranged in the turn of torque spring constitutes, slide before and after on the axle and be provided with the locating piece that has plush copper, the plush copper of locating piece is positioned between the turn of torque spring.During work, size according to casement, determine the position of locating piece on axle,, locating piece is moved forward and backward along torque spring by turning cylinder, move it the position of setting on the axle, the position of locating piece on axle is to determine like this, when the cloth width of cloth that casement discharged is big, makes locating piece close toward the torque spring movable end, when the cloth width of cloth that casement discharged hour, make locating piece away from the torque spring movable end.Like this, do the action of rolling roller shutter cloth by the casement rolling/relieving mechanism drive casement reel that is fixed on the roller shutter frame, rotation along with the casement reel, the torque spring that links together with it is also along with rotation, when rolling roller shutter cloth finishes soon, torque spring is in the free state that does not have torsion, continue rolling roller shutter cloth until end, torque spring is also along with rotation, make torque spring from free state again to having a state of certain torsion, the direction of its torsion is opposite with previous direction, and like this, reel has been saved certain screen resilience under the effect of torque spring; When needing to be wound on roller shutter cloth on the casement reel and discharging, touch casement rolling/relieving mechanism, make the casement reel be in free rotary state, at this moment, under the effect of the screen resilience of torque spring, a part of roller shutter cloth is discharged from the casement reel, because part roller shutter cloth discharges from the casement reel and forms enough gravity, so in this section under the pulling of roller shutter cloth gravity, roller shutter cloth constantly discharges from the casement reel, torque spring also rotates along with the rotation of reel, at this moment, torque spring is returned to free state from having resilience torsion, arrive again and store the resilience torsion opposite with screen resilience, release along with casement, torque spring reverses, the diameter of turn is constantly dwindled, when the reduced of torque spring circle to less than the diameter of locating piece the time, torque spring circle lock ring on the locating piece is on locating piece, locating piece to torque spring between frame can not be reversed, have only locating piece to the torque spring between the torque spring free end just can reverse, like this, just increased the power that spring reverses, the power of reversing of the spring that is increased has been offset casement and has been continued to discharge the impact force that is increased, thereby has slowed down the speed of casement tenesmus effectively, has alleviated turning power required when casement turns round, under the action of gravity of roller shutter cloth, the casement that is wound on the casement reel puts down fully.In the time of need be with the casement rolling, touch casement rolling/relieving mechanism, make casement rolling/relieving mechanism and reel interlock, drive reel by casement rolling/relieving mechanism then and do the rolling rotation, at this moment, because torque spring has been saved certain torsion, and this torsion is to continue to increase along with the release of casement, like this, during rolling, under the effect of torsion, alleviated the power of rolling widely.By the position of axle adjusting locating piece, made things convenient for people's adjusting operation.

Here, frame is provided with rotation shaft unit, rotation shaft unit by the axle sleeve that is arranged in the casement reel and link together with the casement rotating cylinder, rotate in the hole that is arranged on axle sleeve and constitute with bolster that the roller shutter frame is fixed together, bolster is connected with torque spring, be provided with perforation in the bolster, bolster is provided with the runner that is connected with axle, is connected with the runner positioner on the runner.During work, rotating wheel drives axle by runner and rotates, axle drive locating piece rotates, locating piece is moved forward and backward along helical rotation between the turn of torque spring and along axle, arrive till the position of setting, by the runner positioner rotation can not be rotated then until locating piece.

Here, the runner positioner is arranged in the bolster perforation, and runner is connected with axle by the runner positioner.

Be provided with the torque spring connector in the rotation of axle sleeve inner termination, the termination that the torque spring connector is positioned at axle sleeve is a non-circular end, the bolster inner termination is provided with non-circular end with the torque spring connector and matches and embed mouthful, and axle rotates that a cross-under is connected or pass through the runner positioner is connected with runner in the torque spring connector and with runner.

The runner positioner that is positioned at bolster perforation mainly by be socketed in rotary head on the axle, be arranged on secter pat on the rotary head, be arranged on the bolster perforation and be positioned at turn outside the secter pat, be arranged on the runner and be positioned at the shifting block of boring a hole and constitute, the both ends of the spring of turn bends inwards, secter pat is positioned at outside the termination of spring two bending ends, shifting block is positioned at the termination of spring two bending ends, runner by the rotating shaft cross-under on secter pat.

The present invention compared with the prior art, have and to want artificial elder generation that roller shutter is put down a part, roller shutter just can be automatically casement on the casement reel puts down with being wound on, and no matter the curtain that is discharged is furnished with much, all easily by regulating the high-speed and impact force that just can overcome the casement tenesmus, labour-saving advantage during rolling.

Description of drawings:

Fig. 1 is a structural representation of the present invention.

The specific embodiment:

Now in conjunction with the accompanying drawings and embodiments the present invention is described in further detail:

As shown in the figure, the present invention realizes like this, constitute by the torque spring 3 that is fixed on casement rolling/relieving mechanism 2 on the roller shutter frame 1, is connected 4 on frame 1 and casement reel, casement rolling/relieving mechanism 2 links together with casement reel 4, in the turn of torque spring 3, be provided with the axle 5 that links together with frame 1, slide on the axle 5 and be provided with the locating piece 13 that has plush copper 13a, the plush copper 13a on the locating piece 13 is positioned between the turn of torque spring 3.The cross-under of locating piece 13 is non-circular perforations in the perforation of axle 5, and corresponding axle 5 is non-circular shafts.A wherein end of torque spring 3 is connected with casement reel 4 by the connector 6 that is connected in the casement reel 4.

Frame 1 is provided with rotation shaft unit 7, rotation shaft unit 7 by the axle sleeve 7a that is arranged in the casement reel 4 and link together with casement rotating cylinder 4, rotate in the hole 7a1 that is arranged on axle sleeve 7a and constitute with bolster 7b that frame 1 is fixed together, bolster 7b is connected with torque spring 3, be provided with perforation 7b1 in the bolster 7b, bolster 7b is provided with and the axle 5 runner 7c that are connected, and is connected with runner positioner 7d on the runner 7c.Runner positioner 7d is arranged in the bolster 7b perforation 7b1, and runner 7c is connected with axle 5 by runner positioner 7d.

Be provided with torque spring connector 7e in axle sleeve 7a inner termination 7a2 rotation, the termination 7e1 that torque spring connector 7e is positioned at axle sleeve 7a is a non-circular end, bolster 7b inner termination 7b2 is provided with non-circular end 7e1 with torque spring connector 7e and matches and embed mouthful, and axle 5 rotates that cross-under are connected or pass through runner positioner 7d is connected with runner 7c in torque spring connector 7e and with runner 7c.The inboard that torque spring connector 7e is positioned at axle sleeve 7a inner termination 7a2 is provided with boss 7e2, the arranged outside that torque spring connector 7e is positioned at axle sleeve 7a inner termination 7a2 has jump ring groove 7e3, and torque spring connector 7e is positioned on the axle sleeve 7a inner termination 7a2 by boss 7e2, the jump ring 7e4 that is stuck on the jump ring groove 7e3.Axle at torque spring connector 7e two ends is fixed with locating ring 5a on 5, moves axially along torque spring connector 7e to prevent axle 5.

The runner positioner 7d that is positioned at bolster 7b perforation 7b1 mainly by be socketed in rotary head 7d1 on the axle 5, be arranged on secter pat 7d2 on the rotary head 7d1, be arranged on bolster 7b perforation 7b1 and be positioned at the secter pat 7d2 outside turn 7d3, be arranged on the runner 7c and shifting block 7c1 that be positioned at the 7b1 that bores a hole constitutes, the both ends of the spring 7d4 of turn 7d3 bends inwards, secter pat 7d2 is positioned at outside the termination of turn 7d3 two bending end 7d4, shifting block 7c1 is positioned at the termination of turn 7d3 two bending end 7d4, runner 7c by rotating shaft 7c2 cross-under on secter pat 7d2.Be provided with the handle hole 1a corresponding with the tabular frame 1 that bolster 7b is fixed together, to be convenient for people to rotating wheel 7c with runner 7c.

Claims

1. automatic release curtain cloth mechanism for roll screen, it is characterized in that by the casement reel, frame, be arranged on casement rolling/relieving mechanism that the drive casement reel on the frame rotates, be connected the torque spring between frame and casement reel, the interior axle of turn that is arranged on torque spring constitutes, slide before and after on the axle and be provided with the locating piece that has plush copper, the plush copper of locating piece is positioned between the turn of torque spring, frame is provided with rotation shaft unit, rotation shaft unit is by the axle sleeve that is arranged in the casement reel and links together with the casement rotating cylinder, rotation is arranged in the hole of axle sleeve and constitutes with bolster that the roller shutter frame is fixed together, bolster is connected with torque spring, be provided with perforation in the bolster, bolster is provided with the runner that is connected with axle, be connected with the runner positioner on the runner, the runner positioner is arranged in the bolster perforation, runner is connected with axle by the runner positioner, runner positioner in the bolster perforation is mainly by the rotary head that is socketed on the axle, be arranged on the secter pat on the rotary head, be arranged in the bolster perforation and be positioned at the turn in the secter pat outside, be arranged on shifting block formation on the runner and that be positioned at perforation, the both ends of the spring of turn bends inwards, secter pat is positioned at outside the termination of spring two bending ends, shifting block is positioned at the termination of spring two bending ends, runner by the rotating shaft cross-under on secter pat, be provided with the torque spring connector in the rotation of axle sleeve inner termination, the termination that the torque spring connector is positioned at axle sleeve is a non-circular end, the bolster inner termination is provided with non-circular end with the torque spring connector and matches and embed mouthful, axle rotation cross-under is connected in the torque spring connector and with runner or is connected with runner by the runner positioner, the cross-under of locating piece is non-circular perforations in the perforation of axle, corresponding axle is a non-circular shaft, is provided with the handle hole corresponding with runner with the tabular frame that bolster is fixed together.

2. automatic release curtain cloth mechanism for roll screen according to claim 1, it is characterized in that the inboard that the torque spring connector is positioned at the axle sleeve inner termination is provided with boss, the arranged outside that the torque spring connector is positioned at the axle sleeve inner termination has the jump ring groove, the torque spring connector is positioned on the axle sleeve inner termination by boss, the jump ring that is stuck on the jump ring groove, is fixed with locating ring on the axle at torque spring connector two ends.