CN202801139U - Lock-releasing assembly structure of feedback curtain set - Google Patents

Abstract

The utility model a lock-releasing assembly structure of a feedback curtain set. The lock-releasing assembly structure includes a rolling unit axially arranged on an upper truss rail, a scrolling bar having the axis overlapping with the rolling unit, a locking device having the axis overlapping with the rolling unit, a group of stay rope reeled and unreeled by the scrolling bar, and a curtain having the upper end combined with the upper truss rail and the lower end combined with a counterweight swing rod which is pulled by the stay rope. The free end of the lower part of the stay rope passes through the counterweight swing rod and exposes outside the abdominal part of the counterweight swing rod, and the work length of the stay rope, capable of being pulled down, is greater than the largest opening length of the curtain, thus, the stay rope obtains an additional lock-releasing travelling. The scrolling bar of the rolling unit is driven by means of the displacement amount of the travelling, and then the reversing disc of the locking device is driven by the scrolling bar to rotate to vary a lock-releasing angle, thereby unlocking the lock; the unlocking operation can be obtained to be rolled back in all chances if any chance for unreeling the curtain to the most bottom end is provided, and the safety trouble for exposing outside the stay rope can be prevented.

Description

The reaction type groups of shades release the button assembly structure

[technical field]

What the utility model related to a kind of reaction type groups of shades releases the button assembly structure.

[background technology]

By the groups of shades of relying on oneself and reclaiming, the strength that it mainly feeds back is from a scrolling unit, this scrolling unit can obtain energy storage afterwards via the drop-down spacious heavy curtain of putting of external force, and heavy curtain is placed down in arbitrary height, need to obtain an instantaneous location, this location is to determine by a locking device whether the scrolling unit turns round, and heavy curtain is transferred the instantaneous of height is deciding to reach.

Above-mentioned especially the use has the groups of shades of stay cord, and its heavy curtain is transferred in the process by external force, by stay cord with pulling scrolling unit, make the scrolling unit produce direction motion revolution, in the process, it can store drop-down amount kinetic energy the feedback strength when preparing as backrush.

If former times is transferred to lowermost end with the heavy curtain of the groups of shades with stay cord, and should the time locking device be to enter in the situation of locking just because heavy curtain can't once again by drop-down, make it to obtain an actuating length of releasing out, release the button stroke since can't append out, groups of shades namely can't open back heavy curtain.

The spacious work of bringing drill to an end of the heavy curtain of the groups of shades of relevant the automatic recovery heavy curtain, user's application of force is grabbed the set counterweight fork in lower heavy curtain lower end toward drop-down putting when transferring, in the stroke under any height, as long as put back to gently the counterweight fork, this locking device namely can produce locking action at angle of living in, and then make the counterweight fork be fixed on this height and position, other is the person, if heavy curtain will be opened back, the moving counterweight fork down time the with hand operated then, making it to produce one releases and starts journey and drive locking device and produce the change of position, angle, enable to finish release, allow the scroll bar of scrolling unit can free backrush, so that heavy curtain is regained, this is the moving button stroke of releasing down the time, is any tool all conditions of work of demand of the groups of shades that reclaims of relying on oneself.

The problem that this case solves is down spacious when being put into the lowermost end limit when curtain, and just in time is to enter the snap close state at this border locking device, because the lower end of heavy curtain is to lowermost end, moving possibility when then losing is down moved so can't do release to locking device.

Relevant groups of shades with the recovery of relying on oneself, especially the design that has stay cord 11, see also Fig. 1～shown in Figure 3, it is provided with a upper joist track 10 this groups of shades 1, the horizontal direction of upper joist track 10 is set as an axis of operation S, in axis of operation S overlapping one scrolling unit 2 and a locking device 4 are arranged, the peripheral conjugation of scrolling unit 2 is socketed a scroll bar 20, scroll bar 20 can be turned round at axis of operation S, these scrolling unit 2 one ends locking device 4 that links, locking device 4 is to get out of the way interference with the effect of centrifugal force, makes scroll bar 20 can get free revolution, or reaches with gravitational effect that to cut padlock fixed.

Scrolling unit 2 is for being fixed on 22 axial centre supports of a fixed pivot axis of upper joist track 10 1 opposite sides by an end, this a fixed pivot axis 22 is for radially being fixed, its the inner is combined with certain pier body 24 that ends, surely end pier body 24 relative ends and be provided with the pier body 26 that reverses, between the two distinctly in conjunction with the two-port of a helical spring 23.

Pier body 26 inner circles of reversing are that movable sleeve is taken over a fixed pivot axis 22, the opposite end inner circle that its peripheral set socket circle table 260 provides scroll bar 20 is socketed, the other end inner circle of scroll bar 20 is socketed in a freewheel 25, and freewheel 25 centers are that the relevant side that is subject to upper joist track 10 is supported to enable to keep according to axis of operation S to turn round.

Locking device 4 is with the axial end combination, forms coaxial linkage with the one end secure bond at the opposing end surface of the pier body 26 that reverses, and the rotation of the pier body 26 that is subject to reversing and with section change position, angle.

One group of turn cylinder 3 its cylindrical is provided with external screw thread 31, this external screw thread 31 is that rotary-cut is in fixing female screw piece 30 of upper joist track 10 inside, the inner circle of fixing female screw piece 30 is provided with internal screw thread 301, provide above-mentioned external screw thread 31 rotary-cuts, turn cylinder 3 is scrolled bar 20 can rotate synchronously and form axial displacement after cutting, the stroke of this displacement for provide stay cord 11 can single laminate roll around, do not understand laminated or tangle up and down when making stay cord 11 be wound on the appearance of turn cylinder 3.

The lower end of stay cord 11 be via the locking extremity piece 110 and with counterweight fork 5 secure bond.

A fixed pivot axis 22 can make it static via a fixed terminal 21 set scarfing slot 210 restrictions, and fixed terminal 21 is to be subject to upper joist track 10 opposite ends to fix, so a fixed pivot axis 22 is an inactive state.

Please consult again shown in Figure 2, its appearance of scroll bar 20 is vertically recessed to be provided with vertical guide groove 201, and the inner circle of turn cylinder 3 relatively vertically is provided with and cuts double wedge 32 in the position of guide groove 201, the two is that activity is mutually to relation, when scroll bar 20 rotated, it had just driven turn cylinder 3 and has rotated according to axis of operation S.

It is shown in Figure 1 please to return ginseng again, when scroll bar 20 rotates, namely driven the revolution of turn cylinder 3, the peripheral set external screw thread 31 of turn cylinder 3 is subject to again being fixed in set 301 cant rotary-cuts of internal screw thread of fixing female screw piece 30 inner circles of upper joist track 10, so it can form horizontal displacement turn cylinder 3, this displacement can provide the stay cord 11 on the volume can vertical contraposition in the perforation 101 of upper joist track 10, or when transferring, also can allow the stay cord 11 that is wound on turn cylinder 3 appearances vertically transfer being positioned at perforation 101, avoid the perforation 101 anchor ring frictions with upper joist track 10.

The user down is with via the strength operation heavy curtain 100 of hand and lets slip Cheng Dangzhong, stay cord 11 its meeting produce the stopper power that one jiao of position changes to turn cylinder 3, vertical guide groove 201 that turn cylinder 3 is subject to is as shown in Figure 2 used with the action of cutting of cutting double wedge 32, it drives again the rotation of scroll bar 20, the rotation of scroll bar 20 drives again the pier body 26 that reverses, the pier body 26 that reverses has namely reversed the opposite end of helical spring 23, the other end of helical spring 23 is subject to surely ending pier body 24 and fixes, so helical spring 23 produces single-ended torsional deflection, the process of this distortion namely stores by drop-down kinetic energy, and preparation is the strength of feedback after storing.

We arrive any height by drop-down counterweight fork 5, accept locking device 4 and lock, and locking device 4 is position, angle changes of locking scroll bar 20, relatively keep the height and position of counterweight fork 5.

The frame mode of relevant locking device 4, see also shown in Figure 3, it is to reverse by one to coil 41, the plane is provided with the hole 46 of planting, the coaxial combination of the one end face pier body 26 that reverses, after it made up with the pier body 26 that reverses, central part was formed with a through hole 40, and through hole 40 is that the outer shroud that is nested with at a fixed pivot axis 22 also freely rotates.

Be to provide one to swing link stopper 43 and refute and connect in dish 41 the hole 46 of planting of reversing, an end that swings link stopper 43 is provided with axis hole 431, after wearing via the pivot of tip bar 44, be combined in the position in the hole 46 of planting, making swing blocks of files 43 can be that the axle center forms swing according to tip bar 44, another free end that swings link stopper 43 relative axis holes 431 is provided with buckle teeth 430 toward the work axis direction, one cam, 42 appearances are provided with recess 420, the center is provided with and places hole 421, this places hole 421 is to be set in the appearance of a fixed pivot axis 22 and limited by the combination of a fixed pivot axis 22, and make cam 42 obtain deciding of radial angle position, its set recess 420 provides swing link stopper 43 set buckle teeth 430 and passes in and out, when entering its can be via the interlock of the structure of tip bar 44 the one-way check pier body 26 that reverses can not rotate, if buckle teeth 430 is under the situation that breaks away from tip bar 44, then lose the restriction to the pier body 26 that reverses, add centrifugal action after, the pier body 26 that reverses namely can obtain free rotation.

The possible duty of relevant locking device 4, see also Fig. 4～shown in Figure 6, at first see also shown in Figure 4, cam 42 is for being fixed on a fixed pivot axis 22, and the pier body 26 that reverses to be concentricity overlappings the combine dish 41 that reverses, the rotation of pier body 26 of reversing namely synchronously drives the dish 41 that reverses and rotates, dish 41 plane connects one and swings link stopper 43 to refute via the pivot joint of tip bar 44 reversing, the free end that swings link stopper 43 is provided with a buckle teeth 430, and swing link stopper 43 and have quality, when our drop-down heavy curtain 100 makes the counterweight fork 5 of its lower end arrive arbitrary level height position, put back to gently counterweight fork 5, as long as swing then that link stopper 43 free ends can be subject to the centrifugal force effect and when dropping downwards, it can allow buckle teeth switch to the recess 420 of cam 42 for 430 times, and collision is on one surface, inboard of recess 420, and the pier body 26 that reverses namely can't rotate once again, this time counterweight fork 5 be in the first horizontal line L ₁The position when we will open back heavy curtain 100, then through by hand that counterweight fork 5 is moving drop-down down the time, makes counterweight fork 5 be issued to the second horizontal line L ₂The position, append out one and release button stroke L ₀, stroke L is detained in moving releasing when drop-down by this ₀It can drive scroll bar 20 stay cord 11,20 of scroll bars drive the dish 41 that reverses synchronously, make the position of tip bar 44 form circular arc change position, angle, make the position, angle that swings link stopper 43 produce one and release button angle θ, this change of releasing button angle θ namely drive hypotenuse that the buckle teeth 430 that swings link stopper 43 following cam 42 set recess 420 outward direction float, its position of floating is at least outside the radius R scope of cam 42.

Please consult again shown in Figure 6, as aforementioned produced one release the button angle θ after, we let go fast, and the energy of this border feedback is moment full dose driving scroll bar 20 reversed turnings, and is maximum angular acceleration, therefore swing the centrifugal action that link stopper 43 produces because of quality, it can be thrown away outward, makes the buckle teeth 430 that swings link stopper 43 break away from the peripheral radius R of cam 42, allowing the dish 41 that reverses obtain revolution, dish 41 the revolution of reversing namely provides 20 pairs of stay cords 11 of scroll bar to furl, and reaches heavy curtain 100 is furled purpose.Above-mentioned is the duty of its recovery of relying on oneself.

Please return ginseng Fig. 4, shown in Figure 5, groups of shades design described above, transfer to the extreme position of lowermost end at heavy curtain 100, and under the state of locking device 4 for locking, heavy curtain 100 can't down inch be moving again, namely can't append out such as releasing of the 5th figure and detain stroke L0, this swing link stopper 43 can't be changed to release button angle θ, then the buckle teeth 430 of set swing link stopper 43 continues to cut recess 420 surfaces that are buckled in cam 42 and can't produce a release attitude, when running into this kind situation, the user must climb with hand operated, force scroll bar 20 to rotate, release the displacement of detaining angle θ and make it to obtain one, decontrol fast afterwards scroll bar 20, make scroll bar 20 can obtain furling such as the revolution of Fig. 6 the operation of stay cord 11.

[utility model content]

What main purpose of the present utility model was to provide a kind of reaction type groups of shades releases the button assembly structure.

What the utility model was achieved in that a kind of reaction type groups of shades releases the button assembly structure, and it includes: one axially is installed on the scrolling unit of upper joist track; One scroll bar, axle center are overlapped in the scrolling unit, linked by the scrolling unit; One locking device, axle center are overlapped in the scrolling unit, and to the scroll bar restriction that rotates; One group of stay cord is rolled up by scroll bar and is put; One heavy curtain, the upper end is combined in upper joist track, and the lower end is in conjunction with a counterweight fork, and the counterweight fork is with by stay cord to put; The active length of its medium pulling rope is the active length greater than heavy curtain, makes stay cord can append out one and releases and buckle stroke.

The counterweight fork of the utility model is a hollow shape, and top two sides respectively are provided with the shuttle hole, and bottom center is provided with the collection pulling eye, after the free end of stay cord is penetrated by the shuttle hole, after expose outside, draws trifoliate orange assembly by a release from collection pulling eye outlet.

The utility model is a kind of groups of shades with stay cord and tool automatic feedback, be put in the situation of lowermost end in that heavy curtain (counterweight fork) is spacious, chance is released button to locking device entirely, mainly be that hypomere free end with stay cord passed through the counterweight fork, and expose lower abdomen at the counterweight fork, be beneficial to append the operation of releasing the button stroke, the active length of stay cord opens degree of lengthening for the maximum greater than heavy curtain, make stay cord obtain releasing of a best and buckle stroke, this is released the button stroke and then can produce change with the locking device that turns to scroll bar institute and release and detain angle and release to produce one.

This stay cord is that the line segment that is positioned at the below in the set shuttle of counterweight fork hole is provided with and buckles shelves, these button shelves can provide the horizontal adjustment of heavy curtain, and prevent excessively transferring of heavy curtain, avoid crossing its tension force and destroy the heavy curtain breadth, and avoid stay cord excessively to be drawn out the dimension peace effect of the limbs constraint that causes.

This stay cord passed through the lower abdomen of scroll bar, used for forming a closed state, provide the groups of shades that is installed on lower afterwards.

The utility model is provided with stay cord for providing to be used in, and tool reaches feedback automatically with the groups of shades of the backrush heavy curtain of relying on oneself, in that heavy curtain is spacious when being put into lowermost end, chance is released button to locking device entirely, in order to heavy curtain under any circumstance, all can be by backrush release button assembly and stay cord security maintenance.

[description of drawings]

Fig. 1 is for having the groups of shades system architecture schematic diagram of the recovery of relying on oneself.

Fig. 2 is the connection relationship figure of the set scroll bar of scrolling unit and turn cylinder

Fig. 3 is the composition structural representation of locking device.

Fig. 4 is locking device lock-out state schematic diagram.

Fig. 5 is that locking device is released to pull and made schematic diagram.

Fig. 6 is the action schematic diagram that locking device is let alone the scroll bar reduction of income.

Fig. 7 is architecture basics schematic diagram of the present utility model.

Fig. 8 is the schematic layout pattern of the utility model stay cord.

Fig. 9 is that the utility model stay cord is provided with the work schematic diagram of buckleing shelves.

Figure 10 is the Shu that the utility model stay cord is provided with the work schematic diagram of buckleing shelves.

Figure 11 is that the utility model is provided with auxiliary drop-down freewheel schematic diagram.

Figure 12 is that the utility model stay cord forms sealing sample attitude schematic diagram.

The component symbol explanation:

Groups of shades 1 upper joist track 10 heavy curtains 100

101 stay cords 11 of boring a hole lock extremity pieces 110

Scrolling unit 2 scroll bars 20 vertical guide grooves 201

Fixed terminal 21 scarfing slots 210 a fixed pivot axis 22

Helical spring 23 ends pier body 24 freewheels 25 surely

Pier body 26 socket circle table 260 turn cylinders 3 reverse

Fixing female screw piece 30 internal screw threads 301 external screw threads 31

Cut double wedge 32 locking devices 4 through holes 40

Dish 41 cams 42 recess 420 reverse

Swing link stopper 43 buckle teeth 430 axis holes 431

The tip bar 44 hole 46 counterweight forks 5 of planting

Trifoliate orange 6 is drawn in 50 shuttle holes, 51 releases of collection pulling eye

Button shelves 60 extended lines 61 draw 610

Release button stroke L ₀The first horizontal line L ₁The second horizontal line L ₂

Release button angle θ radius R axis of operation S

[specific embodiment]

Relevant operation principle of the present utility model and detailed device see also graphic being described as follows:

At first see also Fig. 7 (cooperating shown in Figure 1), assembly structure of the present utility model has comprised groups of shades 1 that former times uses and can produce to rely on oneself and reclaim scrolling unit 2 and the locking device 4 of heavy curtain 100, this scrolling unit 2 is to be subject to a fixed pivot axis 22 that an end is fixed in upper joist track 10 opposite sides to support, maintain axis of operation S gyration, scrolling unit 2 is provided with certain pier body 24 that ends, it is the inner that is fixed on a fixed pivot axis 22, surely end pier body 24 via a helical spring 23 relative reverse pier body 26 form axially right mutually, reverse and be activity relationship between pier body 26 and a fixed pivot axis 22, therebetween respectively in conjunction with two ports of helical spring 23, the peripheral set socket circle table 260 of pier body 26 of reversing provides the opposite end inner circle of a scroll bar 20 to be socketed, the other end inner circle of scroll bar 20 via one be active in upper joist track 10 opposite sides freewheel 25 support to such an extent that move at axis of operation S.

The periphery of scroll bar 20 is provided with a vertical guide groove 201 with radial cut flowing mode (as shown in Figure 2), this vertical guide groove 201 provides that the inner circle of turn cylinder 3 projects relatively cuts double wedge 32 and cuts and buckle, when must be scroll bar 20 rotation, it drives synchronously turn cylinder 3 and radially turns round, the appearance of turn cylinder 3 is provided with external screw thread 31, its rotary-cut is at a set internal screw thread 301 of fixing female screw piece 30 interior tables that is fixed in upper joist track 10, and the external screw thread 31 table bodies of turn cylinder 3, provide the figure institute of stay cord 11 around the home, and drive rising or the decline of stay cord 11 according to the rotation of turn cylinder 3.

Stay cord 11 line bodies relations is interted after heavy curtain 100 breadths, and its bottom is namely by the set shuttle hole 51 (as shown in Figure 8) of counterweight fork 5, and stay cord 11 is a flexible wire rod, and it can make sliding cutting in shuttle hole 51.

Heavy curtain 100 is the stay cord 11 parallel lower ends of drawing the heavy curtain 100 of pulling by at least two of the left and right sides, heavy curtain 100 lower ends are by 5 end-blockings of counterweight fork, counterweight fork 5 set shuttle holes 51 provide stay cord 11 to pass, pass the free line segment in shuttle hole 51 after the assembly of center, passed outward by counterweight fork 5 set collection pulling eyes 50, the line end that passes draws 6 combinations of trifoliate orange by a release again.

Above-mentioned stay cord 11, the upper end is to be wrapped in scroll bar 20, its coiling total length is delegated to the length (active length of heavy curtain 100) at the end greater than heavy curtain 100, so stay cord 11 can be longer by drop-down active length, and the length that has more namely is utilized as can append the drop-down button stroke L that releases again ₀

Utilize said structure, be put into limit bottom when the set counterweight forks 5 of heavy curtain 100 are down spacious, if and this border locking device 4 enters the snap close state such as Fig. 4, add counterweight fork 5 be down the time moving lose to release pull work, then we can utilize release to draw trifoliate orange 6 application of forces to draw the stay cord 11 of pulling, and allow stay cord 11 append out one and release and buckle stroke L ₀, release button stroke L by this ₀Action, driven and allowed as shown in Figure 5 scroll bar 20 can produce a collar-studs angle, so that swing the recess 420 that the set buckle teeth 430 of link stopper 43 can tripping cam 42, even above its radius R, make system can obtain motion mode such as Fig. 6, allow swing link stopper 43 produce centrifugal force via its quality, buckle teeth 430 is maintained outside the scope of cam 42 radius Rs, pray scroll bar 20 can be turned round freely, furl heavy curtain 100 in the process, make upper joist track 10 under any circumstance, all can reach the purpose of system's release.

Wherein these counterweight fork 5 inside are hollow shape, provide the stay cord 11 can be via the collection pulling eye 50 of solderless wrapped connections after the shuttle hole 51 to lower floor, and outlet draws trifoliate orange 6 to assemble by release.

Normal spacious operation of putting heavy curtain 100, the user is the drop-down counterweight fork 5 of operation, is not trifoliate orange 6 actions are drawn in release, and when if any the sample attitude of the locking device 4 of the 4th figure, then utilizes release to draw trifoliate orange 6 to provide to be done to append out toward drop-down stopper one to release and detain stroke L ₀, make stay cord 11 obtain the operation of releasing out such as Fig. 5, and then allow system can obtain the revolution action of Fig. 6, make scroll bar 20 smoothly backrush heavy curtain 100 furl playback.

Above-mentioned groups of shades 1, mainly be to have stay cord 11 to put heavy curtain 100 with band, and tool is relied on oneself and is fed back the system that reclaims, wherein mainly be to have scroll bar 20, scroll bar 20 is subjected to helical spring 23 feedback backrush persons, stay cord 11 except as above-mentioned effect via external screw thread 31 and fixing female screw piece 30, put outside the stay cord 11 and following the ring order attitude volume of reeling, also can adopt screw to do scrolling unit 2 designs of horizontal displacement at side (not showing on the figure) priming scroll bar 20.This case mainly is to solve the release purpose, then is as long as the content of scrolling unit 2 is to have locking device 4, scroll bar 20, and the mechanism of stay cord 11, is all this case and can adopts the object implemented.

Please consult again shown in Figure 9, stay cord 11 is to pass the set shuttle hole 51 of counterweight fork 5, and be transferred to the collection pulling eye 50 the outer end, draw trifoliate orange 6 to be assembled by release, after release draws 6 pairs of both sides stay cords of trifoliate orange 11 to do central authorities' assembly, the line end of stay cord 11 can be toward the direction migration in shuttle hole 51, but because stay cord 11 is flexible wire rod, and be sliding relation between it and the shuttle hole 51, under any possible External Force Acting, the levelness of this counterweight fork 5 can be influenced, then be can be provided with between shuttle hole 51 and collection pulling eye 50 at the line segment of stay cord 11 buckle shelves 60, button shelves 60 are fixed for fixed point at this line segment, and its limit is the inner port that touches shuttle hole 51, make stay cord 11 length that are positioned at heavy curtain 100 inside can obtain deciding, it is fixed on the line body of stay cord 11 in the adjustment mode button shelves 60, therefore adjusts by this activity, can adjust through the modulation distance and position level of counterweight fork 5, be positioned in principle the equal in length of heavy curtain 100 inside for adjusting both sides stay cord 11, then counterweight fork 5 namely gets keeping of level.

This release draws the lower end of trifoliate orange 6 can be by stay cord 11 direct extension systems, stretch out an extended line 61, the nutating action of this extended line 61 then can provide groups of shades 1 for being installed in towering window, allowing the people stand in the ground handle can catch extended line 61 and pull and support operation, although this strength that pulls and supports can consume via the slip in shuttle hole 51, but after pulling, this counterweight fork 5 can deadweight descends because stay cord 11 down is elongated afterwards, down opens the height of putting and obtain one.

Please consult again shown in Figure 10, extended line 61 described above, after it is left behind, the port inside of collection pulling eye 50 is assembled and be buckled in to the direction that can drive button grade 60 past collection pulling eyes 50, so button shelves 60 can produce all pressure, act on the position of counterweight fork 5 set collection pulling eye 50 inner port, this strength that hobs then directly presses counterweight fork 5 and falls toward moving down.

And; Utilizing button shelves 60 is to make stop in counterweight fork 5 set collection pulling eye 50 the inners, makes the stay cord 11 can't be drop-down again, avoids stay cord 11 excessively to be pulled out, and the length that it is pulled out is detained stroke L as long as can satisfy such as releasing of the 5th figure demand ₀Get final product, and according to the specifications design of normality curtain rollback mechanism, this releases button stroke L ₀Be within 4 inch even about 2 inch, even therefore played by young child, also can not cause the harm of neck constraint, keep use safety.

Set button shelves 60 in addition, also can be between shuttle hole 51 and collection pulling eye 50 line segment of stay cord 11, be provided with two trifoliate oranges, a trifoliate orange acts on the inner port in shuttle hole 51, another trifoliate orange acts on the inner port of collection pulling eye 50, and the distance between the first button shelves 60 like this and the shuttle hole 51 is namely released button stroke L ₀, so release button stroke L ₀Length can obtain modulation because of the position modulation of front and back button gear 60.

The line segment of above-mentioned stay cord 11, the set button shelves 60 of figure difference between shuttle hole 51 and collection pulling eye 50, it is through the displacement adjustment, the convenience of adjusting counterweight fork 5 levels must be arranged, with avoid heavy curtain 100 excessively to be drawn pulling, simultaneously also because excessively not being drawn out, and safeguard limbs safety when young child plays.

Please consult shown in Figure 11ly, this groups of shades 1 as aforementioned stay cord 11 are to pass the set shuttle hole 51 of counterweight fork 5 and concentrate at pulling eye 50, have release to draw trifoliate orange 6 to assemble after line end is lifted one's head again, and draw trifoliate orange 6 to release and detain stroke L to append out one then can spurring very much release opportunity ₀Obtain as the aforementioned release purpose.If groups of shades 1 hangs over towering window for providing, it also can adopt append mode to add and put one section independently extended line 61, sagging the drawing 610 in below, the length of extended line 61 is namely not limited, so standing in the lower position can fall toward moving down via the 61 direct pull counterweight forks 5 of extended line independently, these extended line 61 set drawing 610 as counterweight fork 5 is used toward drop-down function, it can't release, and the situation that needs release is counterweight fork 5 when having arrived bottom extreme position (identical near the ground), in the time of moving in the time of down, then draw the operation of trifoliate orange 6 stay cord 11 of pulling via release, make the stay cord 11 can be as shown in Figure 5, allow system obtain one and release button angle θ, and the free backrush operation that gets the 6th figure.

Please consult again shown in Figure 12, the counterweight fork 5 that the utility model groups of shades 1 is set, it can form sheet, wears the stay cord 11 of walking around heavy curtain 100, it can be through shuttle hole 51 and after turn to, be connected to form the sample attitude of a sealing in the lower end of counterweight fork 5.Normality is used, we can grasp counterweight fork 5 pulled down and namely open wide heavy curtain 100, if system is in the state such as Fig. 4 locking, and counterweight fork 5 can't be again toward drop-down pulling the time, then the user can be with stay cord 11 (trifoliate orange 6 is drawn in the release) pulled down of blind end, and the identical meeting of its pulling force produces via the reception and registration of stay cord 11 buckles angle θ such as releasing of Fig. 5 and produce and to release the effect of button, enters afterwards the sample attitude such as Fig. 6, make system can turn round heavy curtain 100, to obtain to release the button purpose.

The applied groups of shades of the utility model, be mainly in the device with stay cord, its stay cord active length is the spacious degree of lengthening greater than heavy curtain, enable to be appended to one and release the button stroke, under normal operating condition, we are operation according to the counterweight fork of groups of shades, be the spacious limit that is put into of heavy curtain and need to append the situation of releasing the button stroke, when it can't be once again by pulled down, then by the length of releasing the button stroke, moving when the user can draw the trifoliate orange application of force down to release, to enter the release action of Fig. 5, can allow system obtain the automatic rewinding purpose of Fig. 6.

Claims (6)

1. A reaction type groups of shades release the button assembly structure, it is characterized in that it includes: one axially is installed on the scrolling unit of upper joist track; One scroll bar, axle center are overlapped in the scrolling unit, linked by the scrolling unit; One locking device, axle center are overlapped in the scrolling unit, and to the scroll bar restriction that rotates; One group of stay cord is rolled up by scroll bar and is put; One heavy curtain, the upper end is combined in upper joist track, and the lower end is in conjunction with a counterweight fork, and the counterweight fork is with by stay cord to put; The active length of its medium pulling rope is the active length greater than heavy curtain, makes stay cord can append out one and releases and buckle stroke.
2. 2. reaction type groups of shades according to claim 1 releases the button assembly structure, it is characterized by the counterweight fork is a hollow shape, top two sides respectively are provided with the shuttle hole, bottom center is provided with the collection pulling eye, after the free end of stay cord is penetrated by the shuttle hole, after expose outside, draw trifoliate orange assembly by a release from collection pulling eye outlet.
3. Reaction type groups of shades according to claim 2 release the button assembly structure, it is characterized by the sliding stay cord that is through between shuttle hole and the collection pulling eye, at its line body, be provided with button grade.
4. Reaction type groups of shades according to claim 3 release the button assembly structure, it is characterized by the button shelves and be front and back two trifoliate oranges.
5. Reaction type groups of shades according to claim 2 release the button assembly structure, it is characterized by release and draw the trifoliate orange lower end to extend to be combined with an extended line.
6. Reaction type groups of shades according to claim 1 release the button assembly structure, it is characterized by the lower abdomen at the counterweight fork, be provided with again an additional extending line independently.

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