CN206636467U

CN206636467U - Wiring mechanism, upper rail assembly and curtain

Info

Publication number: CN206636467U
Application number: CN201720241145.XU
Authority: CN
Inventors: 张惠才
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-03-13
Filing date: 2017-03-13
Publication date: 2017-11-14
Anticipated expiration: 2027-03-13

Abstract

The utility model discloses a kind of wiring mechanism, upper rail assembly and curtain, the wiring mechanism includes rope-winding wheel, the rope-winding wheel includes the wire casing of axis body and at least one spiral being arranged on the axis body, the diameter of the first end of the axis body is gradually reduced to the diameter at the second end of the axis body, one end of one drawstring is connected with the axis body, the other end of the drawstring and the lower rail of the blade of curtain and curtain connect, the drawstring is wrapped on the wire casing by the first end or departed from successively from the wire casing by second end to the first end successively to second end.Torque constantly changes during rope is wound so that when manually operated curtain is folded and deployed, the active force of human hand is kept in balance, more laborsaving, convenient, and is not in the situation of curtain resilience and curtain downslide.

Description

Wiring mechanism, upper rail assembly and curtain

Technical field

It the utility model is related to curtain field, more particularly to a kind of wiring mechanism, upper rail assembly and curtain.

Background technology

In conventional blind curtain, on the trapezoidal rope that multiple blade supports extend between upper rail and lower rail, one or more is drawn Rope is extended to outside upper rail from lower rail through lath.Upward active force on drawstring lifts lower rail toward upper rail, and by lath from Bottom is received folded toward the top.Limited by system limits with the kind of drive, drawstring reality is after curtain is packed up actually above window The actual length of hanging down of curtain, rope arbitrarily is placed to be easy to be formed by knots tied ring-type causes accident to children.

Curtain without stretching wire is being preferably selected of solving the above problems, and curtain without stretching wire typically uses actuating device of the spring at present As driving source, with serving reel or turning around axis connection, drawstring is wound on the reel or turns around on axle.The actuating device of the spring is given Drawstring provides lifting force, so as to which that resists that curtain blade gravity and hand apply makes a concerted effort, is applied using frictional force and curtain gravity as hand The power that adds withdraw after equilibrant force, the contraction or expansion optional position for reaching curtain stop effect.However, actuating device of the spring The balance of power is extremely difficult to.When curtain stretches, blade is supported by trapezoidal rope, the weight reduction supported by actuating device of the spring. On the contrary, when curtain is retracted, the vaned weight of lower rail and institute needs to be supported by actuating device of the spring.Therefore, Spring driving is worked as When the lifting force that device provides is constant, then many problems can be produced.For example, when human hand pulls down the window curtain, actuating device of the spring branch The weight of support is gradually reduced, and the pulling force of human hand is then increasing and reaches maximum when moving bottom to, when loosing one's grip, due to The situation that upward resilience is shunk occurs in inertia, curtain.In order to prevent rebound phenomenon, existing curtain needs in lower rail or most lower Counterweight object is installed at the blade in face additional to prevent resilience.When human hand lifts lower rail progress shrink curtains, actuating device of the spring branch The weight of support gradually increases, and the strength needs that human hand is lifted are increasing, and reach maximum when vanes retract to the top, bullet When spring drive device lifting force is inadequate, curtain may not be maintained at fully retracted position, and may slowly fall.In order to prevent The problem, existing curtain increase the frictional force of transmission parts (such as drawstring, drive link) in the transmission system of upper rail, with balance The stress of actuating device of the spring.

However, the counterweight of increase lower rail is to prevent non-return bullet and increases the frictional force of upper rail transmission parts to prevent what is hung Mode greatly increases structural complexity, and cost is higher.Because technique assembling and use easily cause frictional force in production in enormous quantities Have uncertainty, still easily occur screen resilience and frictional force, the unmatched situation of gravity after assembling.

Therefore, it is necessary to a kind of improved wiring mechanism, upper rail assembly, curtain are provided, to overcome above-mentioned prior art Deficiency, realize the flexible easy to be reliable of curtain.

Utility model content

A purpose of the present utility model is the wiring mechanism for providing a kind of curtain, and it changes during rope is wound Torque-variable so that when manually operated curtain is folded and deployed, the active force of human hand is kept in balance, more laborsaving, convenient, and Be not in the situation of curtain resilience and curtain downslide, and the structure is easy to assemble, saves manpower.

Another object of the present utility model is the upper rail assembly for providing a kind of curtain, and it changes during rope is wound Torque-variable so that when manually operated curtain is folded and deployed, the active force of human hand is kept in balance, more laborsaving, convenient, and Be not in the situation of curtain resilience and curtain downslide, and the structure is easy to assemble, saves manpower.

A further object of the present utility model is to provide a kind of curtain, its wind restrict during change torque so that When manually operated curtain is folded and deployed, the active force of human hand is kept in balance, more laborsaving, convenient, and is not in window The situation that curtain resilience and curtain glide, and the structure is easy to assemble, saves manpower.

To achieve the above object, the technical solution of the utility model is：A kind of wiring mechanism, for rope wincher described in curtain Structure includes rope-winding wheel, and the rope-winding wheel includes the wire casing of axis body and at least one spiral being arranged on the axis body, and it is special Sign is：The diameter of the first end of the axis body is gradually reduced to the diameter at the second end of the axis body, one end of a drawstring with The axis body is connected, and the other end of the drawstring and the lower rail of the blade of curtain and curtain connect, and the drawstring is by described first End is wrapped on the wire casing or by second end to the first end successively from multiple lines successively to second end Depart from groove.

As one embodiment, in addition to tangent with the outer of a rope-winding wheel and rotatable directive wheel, the drawing Between the directive wheel and the rope-winding wheel, the rope-winding wheel occurs to roll and under the directive wheel effect rope by driving Translate.

It is preferred that the directive wheel includes the meshing flake of body and the protrusion body, the outer of the body and institute It is tangent to state the outer of rope-winding wheel, the meshing flake is meshed with the wire casing to promote the rope-winding wheel to translate.

It is preferred that also including a wiring wheel seat, the rope-winding wheel is rollably arranged on the wiring wheel seat, institute Directive wheel is stated rollably to be arranged on the wiring wheel seat.

As another embodiment, in addition to a wiring wheel seat, the rope-winding wheel is fixed on the wiring wheel seat, the drawing Rope is connected with a transmission device so that the drawstring moves on the wire casing.

The utility model provides a kind of upper rail assembly, and for curtain, the upper rail assembly includes：An at least wiring mechanism with And drive device, the wiring mechanism include rope-winding wheel, the rope-winding wheel includes axis body and is arranged on the axis body extremely The wire casing of a few spiral, it is characterised in that：Diameter from the diameter of the first end of the axis body to the second end of the axis body by Decrescence small, one end of a drawstring is connected with the axis body, and the other end of the drawstring and the lower rail of the blade of curtain and curtain connect Connect, under the driving of external force and the drive device, the drawstring is wrapped in institute successively by the first end to second end State on wire casing or departed from successively from the wire casing by second end to the first end.

As one embodiment, in addition to tangent with the outer of a rope-winding wheel and rotatable directive wheel, the drawing Rope is between the directive wheel and the rope-winding wheel, and the rope-winding wheel is connected with the drive device, the rope-winding wheel and institute State directive wheel to be rolled by driving, and the rope-winding wheel translates under directive wheel effect.

It is preferred that the drive device include power source, the gear assembly that is connected with the power source and with the tooth The connected drive link of wheel assembly, the drive link are set on the axis body of the rope-winding wheel.

It is preferred that the drive link is provided with an at least groove, the inwall of the through hole of the axis body is convex provided with least one Rib, the fin fasten with the groove, and the fin can slide along the groove.

As another embodiment, in addition to a wiring wheel seat, the rope-winding wheel is fixed on the wiring wheel seat, the drawing Rope is connected with the drive device so that the drawstring moves on the wire casing.

The utility model provides a kind of curtain, including upper rail assembly and the relatively described mobilizable lower rail of upper rail assembly With multiple blades, the upper rail assembly, which includes an at least wiring mechanism and drive device, the wiring mechanism, includes rope-winding wheel, The rope-winding wheel includes the wire casing of axis body and at least one spiral being arranged on the axis body, it is characterised in that：The axle The diameter of the first end of body is gradually reduced to the diameter at the second end of the axis body, and one end of a drawstring is connected with the axis body, The other end of the drawstring is connected through the blade and the lower rail and with the lower rail, in external force and the drive device Under driving, the drawstring is wrapped on the wire casing or by second end to institute successively by the first end to second end State first end successively from the wire casing to depart from, so as to realize folding or deploying for the blade.

It is preferred that also include an angle-adjusting mechanism, the angle-adjusting mechanism respectively with the axis body and the blade It is connected, to change the angle of the blade.

Compared with prior art, curtain of the present utility model is being rolled up by changing the wiring diameter of rope-winding wheel to change drawstring Around or stress torque during loosening, so as to realize during drop-down expansion curtain and pop-up shrink curtains during human hand Pulling force and lift that power is constant, without using increasing power so that curtain fold and deploy it is more laborsaving, convenient, and It is not in the situation of curtain resilience and curtain downslide.The scheme of prior art is compared, the utility model number of fitting parts will not increase Add, manufacturing cost is low, easy to assembly, save built-up time and artificial, and service life is grown, and technical requirements are low, suitable for promoting Using.

Brief description of the drawings

Fig. 1 is a partial perspective view of the utility model curtain.

Fig. 2 is another partial perspective view and its partial enlarged drawing of the utility model curtain.

Fig. 3 is the partial perspective view of rail assembly on the utility model.

Fig. 4 a are the sectional view of rail assembly on the utility model.

Fig. 4 b are the partial sectional view and its partial enlarged drawing of rail assembly on the utility model.

Fig. 5-7 is the partial schematic diagram of upper rail assembly, and which show several states of the drawstring in wiring mechanism.

Embodiment

Embodiment of the present utility model described with reference now to accompanying drawing, similar element numbers represent similar member in accompanying drawing Part.

The utility model aims to provide a kind of curtain 1, and as shown in Figure 1-2, the curtain 1 includes upper rail assembly 100, lower rail group Part 200 and the multiple blades 300 being arranged between rail assembly 100 and lower rail assembly 200, human hand pull lower rail assembly 200 Each blade 300 can be achieved to stretch, lifting lower rail assembly 200 can realize that the receipts of each blade 300 are folded, so as to realize the expansion of curtain 1 Or fold.

Each blade 300 is supported on the trapezoidal rope 301 extended between upper rail assembly 100 and lower rail assembly 200 with proportional spacing On, drawstring 302 is extended on upper rail assembly 100 from lower rail assembly 200 through each blade 300, and is wound up into rail assembly 100 In.

Specifically, upper rail assembly 100 includes at least a wiring mechanism 110 and drive device 120, the He of wiring mechanism 110 Drive device 120 is installed in the U-shaped rail 101 of rail assembly 100.As a preferred embodiment, wiring mechanism 110 Quantity is two, is separately positioned on the both ends of U-shaped rail 101, and each wiring mechanism 110 is connected with a drawstring 302, drive device 120 are arranged between two wiring mechanisms 100 with while drive wiring mechanism 110 to realize that drawstring 302 is wound or disengaging acts.Pass through Relative motion between drawstring 302 and wiring mechanism 110, i.e. wiring mechanism 110 moves with respect to drawstring 302, or drawstring 302 relative wiring mechanisms 110 move, and winding or disengaging action of the drawstring 302 in wiring mechanism 110 can be achieved, for example, The position of drawstring 302 in the horizontal direction is fixed, and wiring mechanism 110 is mobile in the horizontal direction and rolls in the axial direction, so as to band Dynamic drawstring 302 moves in wiring mechanism 110；And for example, the position of wiring mechanism 110 in the horizontal direction is fixed but in the axial direction Roll, drawstring 302 moves in the horizontal direction, and it is dynamic can equally to realize that drawstring 302 moves up in wiring mechanism.Below in conjunction with the accompanying drawings It is to be specifically described for first way, that is, the position of drawstring 302 in the horizontal direction is fixed, wiring mechanism 110 is with driving Dynamic device 120 is connected, and movement in the horizontal direction simultaneously rolls in the axial direction, so as to drive drawstring 302 to be moved up in wiring mechanism 110 It is dynamic.

Specifically, as shown in Figure 2,3, wiring mechanism 110 includes the rope-winding wheel 130 being connected with drawstring 302 and for propping up The wiring wheel seat 140 of the rope-winding wheel 130 is supportted, the wiring wheel seat 140 is fixed on the bottom surface of U-shaped rail 101, and it has the branch of both sides Fagging 141 with rope-winding wheel 130 to be engaged, and specifically, there is supporting plate 141 arc notch to coordinate rope-winding wheel 130.It is specific Ground, it is to slidably engage between rope-winding wheel 130 and supporting plate 141, i.e. supporting plate 141 is not in ceiling structure rope-winding wheel 130 in motion thereon, such as rolling and translation.As shown in Fig. 4 a, 4b, the rope-winding wheel 130 includes axis body 131 and is arranged on axle The wire casing 132 of spiral on body 131, specifically, the interval of each circle of the wire casing 132 of the spiral are consistent.Alternatively, the spiral The number of wire casing 132 can be multiple.Axis body 131 is tapered pole, and it has narrower first end and the second wider end, the The diameter of one end is gradually reduced to the diameter at the second end, and axis body 131 is formed there through through hole, so that a drive link 123 passes through.Such as figure Shown in 4b, wiring wheel seat 140 is provided with directive wheel 142, and the directive wheel 142 is rollably arranged on the lower section of wiring wheel seat 140, And positioned at the outside of rope-winding wheel 130 and tangent with the outer of rope-winding wheel 130, in such a way, directive wheel 142 is in lateral branch Support rope-winding wheel 132.Specifically, as shown in Fig. 2 partial enlarged drawing, the directive wheel 142 includes body 1421 and protrusion body 1421 meshing flake 1422, the outer and the outer of rope-winding wheel 130 of the body 1421 are tangent, meshing flake 1422 and the phase of wire casing 132 Engagement, i.e. the outer of meshing flake 1422 is higher than the outer of body 1421, when the periphery of body 1421 and rope-winding wheel 130 is tangent, Meshing flake 1422 is engaged among wherein one circle of wire casing 132.The purpose so set is, when rope-winding wheel 130 and directive wheel 142 When rolling, because of the engagement of meshing flake 1422 translational motion can occur for rope-winding wheel 130, so as to realize the winding of drawstring 302 Or depart from.

The end of drawstring 302 extends from the lower direction of direction rope-winding wheel 130 of directive wheel 142, and drawstring 302 is located at directive wheel Between 142 and rope-winding wheel 130 and it is close to the rolling surface of directive wheel 142 and sets.Under the guiding of directive wheel 142, drawstring 302 by The first end of axis body to the second end is wrapped on multiple wire casings or by the second end to the first end successively from multiple wire casings successively Upper disengaging, so as to realize folding or deploying for blade.Specifically, in curtain during expansion, drawstring 302 is small from diameter Second end departs from wire casing successively to the big first end of diameter, and after curtain is fully deployed, drawstring 302 is in the first of major diameter End, e.g. first end most end position a wire casing, or multiple wire casings of first end terminal position, this is only dependent upon drawstring 302 length and the quantity of wire casing.In curtain during contraction, drawstring 302 is small to diameter from the big first end of diameter The second end wind wire casing successively, after curtain shrinks completely, drawstring 302 is wound to the second end of minor diameter.For ease of describing, Drawstring 302 is not illustrated on the rope-winding wheel 130 in Fig. 1-4b, and drawstring 302 is shown on Fig. 5-7 rope-winding wheel 130.

As shown in figure 3, the drive device 120 include power source 121, the gear assembly 122 that is connected with power source 121 and The drive link 123 being connected with gear assembly 122, the drive link 123 are set on the axis body 131 of rope-winding wheel 130.Specifically, should Power source 121 is fixed on U-shaped rail 101, and it is that rope-winding wheel 130 and drawstring 302 provide driving source, and it can use existing spring Drive device, such as leaf spring or coil spring etc..Gear assembly 122 include the driving wheel 1221 that is connected with power source 121 and with biography The connected driven pulley 1222 of lever 123, specifically, driving wheel 1221 is fixed on power source 121, and driven pulley 1222 is positioned at actively The top of wheel 1221 is meshed, and drive link 123 can roll under the drive of driven pulley 1222.It is preferred that the driving wheel 1221 and driven pulley 1222 be angular wheel.For prevent driven pulley 1222 roll when also with rope-winding wheel 130 occur translation and It is disengaged from driving wheel 1221, the side of driven pulley 1222 is provided with baffle plate 124, the baffle plate 124 is fixed on U-shaped rail 101 Two side or power source 121 shell on, more specifically, the position of driven pulley 1222 is located at driving wheel 1221 and baffle plate 124 Between.

Rope-winding wheel 130 of the drive link 123 through driven pulley 1222 and both sides.Specifically, as shown in Figure 4 b, drive link 123 outer surface is provided with one or more grooves 1231, and the inwall of the through hole of the axis body 131 of rope-winding wheel 130 is provided with one Or multiple fins 1311, passing through fastening for fin 1311 and groove 1231 so that drive link 123 and rope-winding wheel 130 are meshed, And fin 1311 can horizontally slip on groove 1231.More preferably, one or more longitudinally convex side 1311a on fin with it is recessed The inner side of groove 1231 is in contact engaging.Such setting so that drive link 123 can drive rope-winding wheel 130 to roll when rolling, and When rope-winding wheel 130, which is directed to wheel 142, drives left and right translation, fin 1311 can horizontally slip on groove 1231.Similarly, from The through-hole wall of driving wheel 1222 is provided with one or more fin (not shown), driven by fin and being engaged for groove Wheel 1222 and drive link 123 be meshed, thus, driven pulley 1222 can drive drive link 123 to roll, drive link 123 can drive around Rope sheave 130, which is realized, to be rolled.

With reference to Fig. 1-7, expansion and contraction principle and the process of the utility model curtain 1 is described below.Need curtain exhibition When opening, now, drawstring 302 is wrapped in the second end (such as Fig. 5) that the line end wound on bull wheel 130 and finally is located at minor diameter, The lower rail of curtain 1 is pulled down with hand, drawstring 302 is tightened and moved downward, in the presence of drive device and external force, rope-winding wheel 130 are rolled, and between rope-winding wheel 130, drawstring 302 and directive wheel 142 in the presence of frictional force, directive wheel 142 is sent out therewith It is raw to roll.During rolling, because the meshing flake 1422 of directive wheel 142 is meshed with the wire casing 132 of rope-winding wheel 130, because This, in 142 common rotation of rope-winding wheel 130 and directive wheel, active force between the two causes rope-winding wheel 130 that translation (example occurs Such as it is moved to the left).As human hand is toward drop-down and the rolling and translation of rope-winding wheel 130, drawstring 302 is seriatim successively from minor diameter The second end to (Fig. 6 illustrate during a state) is departed from the wire casing 132 of the first end of major diameter, now, drawstring The torque of 302 stress then gradually increases, and like that, gradually subtracts due to gradually spreading out for blade in the weight of drive device support In the case of small, the pulling force of human hand uses a constant force without increasing, so as to reach labour-saving purpose.And Due to human hand tensions constant, therefore be not in the situation that resilience is shunk and when curtain is fully deployed, human hand unclamps.When need When curtain is shunk, now, drawstring 302 is located at the first end (such as Fig. 7) of the major diameter of bull wheel 130, is lifted upwards with hand The lower rail of curtain, in the presence of drive device and external force, rope-winding wheel 130 rolls, and in rope-winding wheel 130, drawstring 302 and leads To in the presence of frictional force between wheel 142, directive wheel 142 rolls therewith.During rolling, due to directive wheel 142 Meshing flake 1422 be meshed with the wire casing 132 of rope-winding wheel 130, therefore, in 142 common rotation of rope-winding wheel 130 and directive wheel, Active force between the two make it that translation (such as moving right) occurs for rope-winding wheel 130, drawstring 302 from the first end of major diameter to Second end of minor diameter is in turn wrapped on wire casing 132, and now, the torque of the stress of drawstring 302 is then gradually reduced, like that, In the weight that drive device supports due to gradually tapering up for blade and in the case of gradually increasing, human hand lifts power without more Come it is bigger, and use a constant force, so as to reach labour-saving purpose.Moreover, when curtain shrinks completely, human hand unclamps, Due to human hand tensions constant, therefore it is not in the situation for gliding and deploying.

As can be seen here, curtain 1 of the present utility model by change the wiring diameter of rope-winding wheel change drawstring winding or Stress torque during disengaging, so as to realize drop-down expansion curtain during and pop-up shrink curtains during human hand drawing Power and lift that power is constant, without using increasing power so that curtain fold and deploy it is more laborsaving, convenient, and will not There is the situation of curtain resilience and curtain downslide.The scheme of prior art is compared, the utility model number of fitting parts will not increase, system Cause low, easy to assembly, save built-up time and artificial, and service life is grown, technical requirements are low, suitable for popularization and application.

In a further advantageous embodiment, the curtain 1 also includes an angle-adjusting mechanism (not shown), the angle adjustment machine Structure is connected with the axis body and blade of rope-winding wheel respectively, such as is attached by trapezoidal rope, to change the angle of blade.Work as wiring The axis body of wheel drives the angle-adjusting mechanism so as to adjust the open angle of blade when rotating.

In another embodiment, based on design of the present utility model, the wiring mechanism 110 is arranged to only roll in the axial direction It is dynamic, but do not move left and right in the horizontal direction, and drawstring 302 is then connected with another drive device (not shown) so as in level side Move up, so as to realize that drawstring 302 is wrapped on wire casing 132 or by successively by first end to the second end of rope-winding wheel 130 Two ends depart from from multiple wire casings 132 successively to first end.In the case, foregoing drive link 123 and rope-winding wheel 130 are solid Fixed connection, and directive wheel 142 is not meshed then with rope-winding wheel 130.But another drive device driving drawstring 302 is made left and right and put down Move, moved successively on each wire casing 132 to complete to wind or depart from.Such as the drive device includes what is be connected with drawstring 302 Driving wheel (not shown) or drive rod (not shown).The pyramidal structure of rope-winding wheel 130 is identical with a upper embodiment, similarly, passes through Change the wiring diameter of rope-winding wheel and change stress torque of the drawstring during winding or disengaging, so as to realize drop-down expansion The pulling force of human hand and lift that power is constant during curtain and during pop-up shrink curtains, without using increasing power, make Curtain fold and deploy it is more laborsaving, convenient, and be not in curtain resilience and curtain downslide situation.

Above disclosed is only preferred embodiment of the present utility model, certainly can not be new to limit this practicality with this The interest field of type, therefore the equivalent variations made according to present utility model application the scope of the claims, still belong to the utility model and covered Scope.

Claims

1. a kind of wiring mechanism, for curtain, the wiring mechanism includes rope-winding wheel, and the rope-winding wheel includes axis body and setting The wire casing of at least one spiral on the axis body, it is characterised in that：The diameter of the first end of the axis body is to the axis body The diameter at the second end be gradually reduced, one end of a drawstring is connected with the axis body, the other end of the drawstring and the leaf of curtain The lower rail of piece and curtain is connected, and the drawstring is wrapped on the wire casing or by institute successively by the first end to second end The second end is stated to the first end successively from multiple wire casings to depart from.

2. wiring mechanism as claimed in claim 1, it is characterised in that：Outer also including one and the rope-winding wheel is tangent and can The directive wheel of rolling, between the directive wheel and the rope-winding wheel, the rope-winding wheel is rolled the drawstring by driving And issue life in directive wheel effect and move.

3. wiring mechanism as claimed in claim 2, it is characterised in that：The directive wheel includes body and the protrusion body Meshing flake, the outer of the body and the outer of the rope-winding wheel are tangent, and the meshing flake is meshed with the wire casing to push away The rope-winding wheel is moved to translate.

4. wiring mechanism as claimed in claim 2, it is characterised in that：Also include a wiring wheel seat, the rope-winding wheel can roll Ground is arranged on the wiring wheel seat, and the directive wheel is rollably arranged on the wiring wheel seat.

5. wiring mechanism as claimed in claim 1, it is characterised in that：Also include a wiring wheel seat, the rope-winding wheel is fixed on On the wiring wheel seat, the drawstring is connected with a transmission device so that the drawstring moves on the wire casing.

6. a kind of upper rail assembly, for curtain, the upper rail assembly includes：At least a wiring mechanism and drive device, it is described Wiring mechanism includes rope-winding wheel, and the rope-winding wheel includes the line of axis body and at least one spiral being arranged on the axis body Groove, it is characterised in that：The diameter of the first end of the axis body is gradually reduced to the diameter at the second end of the axis body, a drawstring One end is connected with the axis body, and the other end of the drawstring and the lower rail of the blade of curtain and curtain connect, in external force and described Under the driving of drive device, the drawstring is wrapped on the wire casing or by described successively by the first end to second end Second end departs from from the wire casing successively to the first end.

7. upper rail assembly as claimed in claim 6, it is characterised in that：Outer also including one and the rope-winding wheel is tangent and can The directive wheel of rolling, the drawstring is between the directive wheel and the rope-winding wheel, the rope-winding wheel and the drive device It is connected, the rope-winding wheel and the directive wheel are rolled by driving, and the rope-winding wheel occurs under directive wheel effect Translation.

8. upper rail assembly as claimed in claim 7, it is characterised in that：The directive wheel includes body and the protrusion body Meshing flake, the outer of the body and the outer of the rope-winding wheel are tangent, and the meshing flake is meshed with the wire casing to push away The rope-winding wheel is moved to translate.

9. upper rail assembly as claimed in claim 7, it is characterised in that：Also include a wiring wheel seat, the rope-winding wheel can roll Ground is arranged on the wiring wheel seat, and the directive wheel is rollably arranged on the wiring wheel seat.

10. upper rail assembly as claimed in claim 7, it is characterised in that：The drive device includes power source and the power The connected gear assembly in source and the drive link being connected with the gear assembly, the drive link are set in the institute of the rope-winding wheel State on axis body.

11. upper rail assembly as claimed in claim 10, it is characterised in that：The drive link is provided with an at least groove, described The inwall of the through hole of axis body is provided with an at least fin, and the fin fastens with the groove, and the fin can be along described Groove slides.

12. upper rail assembly as claimed in claim 6, it is characterised in that：Also include a wiring wheel seat, the rope-winding wheel is fixed on On the wiring wheel seat, the drawstring is connected with the drive device so that the drawstring moves on the wire casing.

13. a kind of curtain, including upper rail assembly and the relatively described mobilizable lower rail of upper rail assembly and multiple blades, described Upper rail assembly, which includes an at least wiring mechanism and drive device, the wiring mechanism, includes rope-winding wheel, and the rope-winding wheel includes The wire casing of axis body and at least one spiral being arranged on the axis body, it is characterised in that：The first end of the axis body it is straight Radially the diameter at the second end of the axis body is gradually reduced, and one end of a drawstring is connected with the axis body, the drawstring it is another End is connected through the blade and the lower rail and with the lower rail, under the driving of external force and the drive device, the drawing Rope be wrapped in successively on the wire casing to second end by the first end or by second end to the first end successively Depart from from the wire casing, so as to realize folding or deploying for the blade.

14. such as the described curtain of claim 13, it is characterised in that：Outer also including one and the rope-winding wheel is tangent and can The directive wheel of rolling, the drawstring is between the directive wheel and the rope-winding wheel, the rope-winding wheel and the drive device It is connected, the rope-winding wheel and the directive wheel are rolled by driving, and the rope-winding wheel occurs under directive wheel effect Translation.

15. such as the described curtain of claim 14, it is characterised in that：The directive wheel includes body and the protrusion body Meshing flake, the outer of the body and the outer of the rope-winding wheel are tangent, and the meshing flake is meshed with the wire casing.

16. such as the described curtain of claim 14, it is characterised in that：Also include a wiring wheel seat, the rope-winding wheel can roll Ground is arranged on the wiring wheel seat, and the directive wheel is rollably arranged on the wiring wheel seat.

17. such as the described curtain of claim 14, it is characterised in that：The drive device includes power source and the power The connected gear assembly in source and the drive link being connected with the gear assembly, the drive link are set in the institute of the rope-winding wheel State on axis body.

18. such as the described curtain of claim 17, it is characterised in that：The drive link is provided with an at least groove, the axle The inwall of the through hole of body is provided with an at least fin, and the fin fastens with the groove, and the fin can be along described recessed Groove slides.

19. curtain as claimed in claim 14, it is characterised in that：Also include an angle-adjusting mechanism, the angle adjustment machine Structure is connected with the axis body and the blade respectively, to change the angle of the blade.

20. curtain as claimed in claim 13, it is characterised in that：Also include a wiring wheel seat, the rope-winding wheel is fixed on institute State on wiring wheel seat, the drawstring is connected with the drive device so that the drawstring moves on the wire casing.