CN207315193U - Power Component and curtain - Google Patents

Abstract

The utility model discloses a kind of Power Component and curtain, the Power Component includes installing plate, it is rotatably installed on the installing plate and intermeshing rope-winding wheel and at least one set of drive wheel group, at least the first sheave positioned at the outside of the drive wheel group, and at least one second sheave positioned at the outside of the rope-winding wheel, one elastic component is telescopically wound in the drive wheel group to provide driving force for the rope-winding wheel, the initiating terminal of one drawstring is fixed on the rope-winding wheel, the drawstring is divided at least two drawstring sections in precalculated position, the at least two drawstring sections are used to be each passed through the blade of curtain and are connected with the lower rail of curtain.The Power Component is simple in structure, easy to assembly, more laborsaving convenient when user's manual operation curtain is folded and is unfolded.

Description

Power Component and curtain

Technical field

It the utility model is related to curtain field, more particularly to a kind of Power Component 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 since system is limited 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 generally 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 axis.The actuating device of the spring is given Drawstring provides lifting force, so 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, is reduced by the weight of actuating device of the spring support. 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, when spring drives 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 rebound is shunk upwards occurs in inertia, curtain.Rebound phenomenon in order to prevent, existing curtain need in lower rail or most lower Counterweight object is installed at the blade in face additional to prevent to spring back.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 driving 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.Since technique assembling and use be easy to cause frictional force in mass production 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 Power Component and curtain are provided, to overcome above-mentioned the deficiencies in the prior art.

Utility model content

One purpose of the utility model is to provide a kind of Power Component of curtain, the Power Component is simple in structure, It is easy to assembly, it is more laborsaving convenient when user's manual operation curtain is folded and is unfolded.

The another object of the utility model is to provide a kind of curtain with Power Component, simple in structure, easy to assembly, It is more laborsaving convenient when user's manual operation curtain is folded and is unfolded.

To achieve the above object, the technical solution of the utility model is：A kind of Power Component, for curtain, the power Component includes installing plate, is rotatably installed on the installing plate and intermeshing rope-winding wheel and at least one set of driving wheel Group, at least the first sheave positioned at the outside of the drive wheel group, and at least 1 positioned at the outside of the rope-winding wheel Two sheaves, an elastic component are telescopically wound in the drive wheel group to provide driving force, a drawstring for the rope-winding wheel Initiating terminal be fixed on the rope-winding wheel, the drawstring is divided at least two drawstring sections, at least two drawings in precalculated position Rope section is used to be each passed through the blade of curtain and is connected with the lower rail of curtain, and in the first operative state, the drawstring part twines It is wound on the rope-winding wheel then that the outer rim along second sheave and the outer rim of first sheave are wrapped in institute successively State on the second sheave and first sheave, in a second operative state, the drawstring is successively along the rope-winding wheel, described Depart from second sheave and first sheave.

It is preferred that the drive wheel group includes the first driving wheel and the second driving wheel, first driving wheel and described the Two driving wheels are meshed, and second driving wheel is meshed with first driving wheel and the rope-winding wheel respectively.

More preferably, the elastic component is telescopically wound between first driving wheel and second driving wheel, and One end of the elastic component is connected on first driving wheel, and the other end of the elastic component is connected to second driving wheel On.

More preferably, second driving wheel includes being used for the engagement engaged with first driving wheel and the rope-winding wheel Piece, the shaft that may be rotatably mounted on the installing plate and shrapnel wheel in the shaft is may be rotatably mounted at, the elastic component It is contained in the shrapnel wheel, and one end of the elastic component is connected with first driving wheel, the other end of the elastic component It is connected with the shrapnel wheel.

It is preferred that including two groups of drive wheel groups being meshed, each drive wheel group includes two drives being meshed Driving wheel, is equipped with an elastic component between the driving wheel being meshed.

It is preferred that first driving wheel includes the meshing flake engaged with second driving wheel and may be rotatably mounted at Shaft on the installing plate.

It is preferred that first sheave and second sheave are installed in rotation on the installing plate.

It is preferred that the centre of first sheave and second sheave is mounted on a bearing, by the axis Hold, first sheave and second sheave are installed in rotation on the installing plate.

It is preferred that the quantity of first sheave and/or second sheave is two.

It is preferred that the groove for being used for guiding the drawstring is formed on first sheave and/or second sheave.

It is preferred that the quantity of first sheave and the quantity of the second sheave be two, the drawstring includes Single drawstring section positioned at preceding part and double drawstring sections positioned at rear part, the list drawstring section are wrapped on the rope-winding wheel, Double drawstring sections lay out from the rope-winding wheel and wind successively along the outer rim of two second sheave and two described first and lead The outer rim of rope sheave is wrapped in two second sheaves and two first sheaves, after pre- fixing turn is wound, double drawings Its one in rope section is laid out from the first sheave one of them described, and the other of described double drawstring sections are from one of institute The second sheave is stated to lay out.

Correspondingly, another program of the utility model is：A kind of curtain, including upper rail, relatively described upper rail are mobilizable Lower rail and multiple blades, and installed in the upper rail for driving the blade and the Power Component of the lower rail, the power Component has feature as described above.

Compared with prior art, the Power Component of the utility model is by setting intermeshing drive wheel group and wiring Take turns, drawstring is divided into two in precalculated position or more, drawstring is partially around on rope-winding wheel then successively along the second rope-winding wheel Outer rim and the first sheave outer rim multiple-turns wound on the second sheave and the first sheave, such a baudrier makes folding and unfolding The synchronism of curtain is more preferable, will not drawstring folding and unfolding is asynchronous causes to tilt below curtain when packing up and pulling down curtain.It is dynamic The structure of power component is simpler, operation is more effortless convenient, realizes wirelessization of curtain, and is not in spring back or hang.And And the utility model manufacture cost it is low, it is easy to assembly, save built-up time and manually, and service life grow, technical requirements It is low, suitable for promoting and applying.

Brief description of the drawings

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

Fig. 2 is a stereogram of the first embodiment of the utility model Power Component.

Fig. 3 is the partial exploded view of Fig. 2.

Fig. 4 is the further exploded view of Fig. 3.

Fig. 5 is the cooperation schematic diagram between each component and drawstring of the first embodiment of Power Component.

Fig. 6 is a stereogram of the second embodiment of the utility model Power Component.

Fig. 7 is the partial exploded view of Fig. 6.

Fig. 8 is the cooperation schematic diagram between each component and drawstring of the second embodiment of Power Component.

Fig. 9 is the partial exploded view of the 3rd embodiment of the utility model Power Component.

Figure 10 is the further exploded view of Fig. 9.

Figure 11 is the cooperation schematic diagram between each component and drawstring of the 3rd embodiment of Power Component.

Embodiment

The embodiment of the utility model described referring now to attached drawing, similar element numbers represent similar member in attached drawing Part.

The utility model aims to provide a kind of curtain 1, as shown in Figure 1, the curtain 1 include upper rail 100, lower rail 200 and The multiple blades 300 being arranged between upper rail 100 and lower rail 200, human hand pull lower rail 200 to realize that each blade 300 stretches, Lifting lower rail 200 can realize that the receipts of each blade 300 are folded, so as to fulfill curtain 1 expansion or fold.

Each blade 300 is supported on the trapezoidal rope 301 extended between upper rail 100 and lower rail 200 with proportional spacing, drawstring 302 extend in upper rail 100 from lower rail 200 through each blade 300, and are wound up into the Power Component 400 of upper rail 100.Such as figure Shown in 1, which is fixedly mounted in the U-shaped rail 101 (part is shown as in figure) of upper rail 100, for being grasped in human hand Make lower band movable vane piece 300 and lower rail 100 so as to fulfill being unfolded or folding.

Specifically, as in Figure 2-4, which includes installing plate 401, is rotatably installed on installing plate 401 Upper and intermeshing rope-winding wheel 430 and drive wheel group 480, the first sheave 440 positioned at the outside of drive wheel group 480, with And the second sheave 450 positioned at the outside of rope-winding wheel 430, it is preferred that further including cover board 402.Specifically, drive wheel group 480 Including intermeshing first driving wheel, 410 and second driving wheel 420, in the present embodiment, the first driving wheel 410, second drives Driving wheel 420 and rope-winding wheel 430 are along being disposed directly on installing plate 401, and three engages successively, and " engaging successively " means the first drive Driving wheel 410 is engaged with the second driving wheel 420, and the second driving wheel 420 is engaged respectively at the first driving wheel 410 and rope-winding wheel 430. First, second sheave 440,450 is rotatably positioned in the both ends of installing plate 401 respectively, it is preferred that also along 401 He of installing plate First driving wheel 410, the second driving wheel 420 and rope-winding wheel 430 are arranged in a linear.Specifically, the first sheave 440 and first drives Driving wheel 420 is not in contact and is in predetermined gap, and the second sheave 450 is not in contact with rope-winding wheel 430 and is in predetermined gap.

In other embodiments, the arrangement of drive wheel group 480, rope-winding wheel 430 and sheave 440,450 can be non-straight Line, as long as ensureing that drive wheel group 480 and rope-winding wheel 430 are engaged to drive rope-winding wheel 430, and sheave 440,450 is positioned at driving The outside of wheel group 480 and rope-winding wheel 430.It should be noted that it is suitable for upper rail narrower width along linear array Curtain, to save installation space.

As shown in figure 5, elastic component 460, specifically, elastic component are equipped between the first driving wheel 410 and the second driving wheel 420 460 one end is connected on the first driving wheel 410, and the other end of elastic component 460 is connected on the second driving wheel 420.It is preferred that The elastic component 460 is wind spring, and under a working status, elastic component 460 is on the first driving wheel 410, in another work Under state, elastic component 460 is on the second driving wheel 420.First driving wheel 410, the second driving wheel 420 and elastic component 460 provide lifting force so as to resist the power that the gravity of curtain blade and hand apply for drawstring 302.Specifically, as shown in figure 4, One driving wheel 410 has upper and lower meshing flake 411 and the housing piece 412 for housing and connecting elastic component 460, it is preferred that First driving wheel 410 is integrally installed in rotation on installing plate 401 in integral structure；Second driving wheel 420 has There are upper and lower meshing flake 421, the shaft 423 that may be rotatably mounted on installing plate 401 and may be rotatably mounted in shaft 423 Shrapnel wheel 422, which is used to house elastic component 460, and one end of elastic component 460 is fixed on shrapnel wheel 422, separately One end is then fixed in the housing piece 412 of the first driving wheel 410.Specifically, the engagement in the present embodiment in one's power is engaged for gear.

The initiating terminal of drawstring 302 is fixed on rope-winding wheel 430, under a state (blade of curtain is folded), drawstring 302 are repeatedly wound around 450 He of the second sheave around the outer rim of the second sheave 450 and the outer rim of the first sheave 450 successively On first sheave 440, the end of drawstring 302 passes through the blade of curtain and is connected with the lower rail of curtain；When in another state Under (blade of curtain is unfolded), drawstring 302 is successively along the first rope-winding wheel 440 of rope-winding wheel 430, the second sheave 450 and institute Depart from.It is explained further, as shown in Figure 6, drawstring 302 is laid out from rope-winding wheel 430, then around the outer of the second sheave 450 Lateral edges, and then the outer ledge of the first sheave 440 is bypassed, the outer ledge of the second sheave 450 is then wound into again, And so on, drawstring 302 is by multiple-turns wound.Specifically, the initiating terminal of drawstring 302 is an independent rope (i.e. single drawstring section), On the precalculated position of drawstring 302 (such as drawstring 302 from the position that rope-winding wheel 430 is laid out), single drawstring 302 is by one It is divided into two and is divided into two sections of drawstring section 302a (i.e. double drawstring section), wherein one section of 302a of two sections of drawstring section 302a is from the first conductor rope Take turns and laid out at 440, another section of 302a is laid out at the second sheave 450, so so that two sections of drawstring section 302a are respectively in phase To both direction at extend and be pierced by the both ends of upper rail, then through the blade 300 and the two of the lower rail 200 of curtain of curtain End connection.In this way, the drawstring section 302a of both sides can be driven via storage capacitors simultaneously the both ends with driving blade 300 and lower rail 200, both ends are realized Synchronous driving, prevents drawstring folding and unfolding is asynchronous when packing up and pulling down curtain from causing to tilt below curtain.

In other embodiments, drawstring 302 can be divided into more than two sections of drawstring section in precalculated position, such as 3 sections or more More, such setting can accordingly be selected according to the width of curtain, and each drawstring section is respectively used to the blade with curtain Connect with the diverse location of lower rail, so that the blade of curtain and lower rail are driven via storage capacitors simultaneously at diverse location, realize synchronous Receive curtain and put curtain.

In order to enable winding of the drawstring 302 on sheave is more stable, groove (not shown) can be set on sheave.

In another embodiment, the quantity of the first sheave 440 and the second sheave 450 can be two, such as Fig. 6-8 institutes Show, two the first sheaves 440 positioned at the side of the first driving wheel 410 are set up in parallel, two positioned at the side of rope-winding wheel 430 Two sheaves 450 are set up in parallel.Specifically, two the first sheaves 440 are arranged in a straight line along the width of installing plate 401, and Certain interval is reserved between the two；Two the second sheaves 450 are in width side of the other end along installing plate 401 of installing plate 401 To arranged in a straight line, and certain interval is reserved between the two.Drawstring 302 is laid out from rope-winding wheel 430, then around two the second conductor ropes The outer ledge of wheel 450, and then around the outer ledge of two the first sheaves 440, two the second sheaves are wound into again 450 outer ledge, and so on, drawstring 302 is by multiple-turns wound.Further, the single drawstring 302 of leading portion is wound on rope-winding wheel On 430, then, the drawstring 302 laid out from rope-winding wheel 430, which is divided into two, is divided into two sections of drawstring sections 302a, two drawstring section 302a The outer rim of two second sheaves 450 of the same side is bypassed at the same time, then at the same time around two the first sheaves of opposite side 440 outer rim, after pre- fixing turn is wound, wherein a drawstring section 302a is laid out from one of them second sheave 450, in figure Shown direction C；Another drawstring section 302a then continues the outer rim winding along the second sheave 450 until wherein the one of opposite side A first sheave 440 is laid out, direction D as depicted.The drawstring section 302a of both direction then respectively with the blade of curtain and Lower rail connects, such as realizes connection through blade and lower rail by a fixed seat (figure does not indicate) respectively.

It is preferred that as shown in figs. 9-10, the centre of each sheave 440,450 is mounted on a bearing 441,451, by By the bearing 441,451, sheave 440,450 can be rotatably mounted on installing plate 401, so can further reduce friction resistance Power so that debit's process of drawstring is more smooth.More preferably, can be set at the position of the correspondence sheave 440,450 of installing plate 401 Recess step 442 is put, so that it is hanging between the rotating part and installing plate 401 of sheave 440,450, rub so as to reduce Wipe resistance.Similarly, it may also set up similar recess step at the correspondence driving wheel of installing plate 401 or the position of rope-winding wheel.

And the detailed construction of the miscellaneous part of the present embodiment and in one's power consistent in first embodiment, this will not be repeated here.

In other embodiments, the quantity of drive wheel group can be two groups or more, so as to adapt to needed for broader big curtain Elastic force.For example, the embodiment as shown in 11 figures, including the two groups of drive wheel groups 480,480 ' being meshed, including successively The first driving wheel 410, the second driving wheel 420, the 3rd driving wheel 410 ', the 4th driving wheel 420 ' of engagement, the first driving wheel 410 And second be equipped with elastic component 460 between driving wheel 420, elastic component is equipped between the 3rd driving wheel 410 ' and the 4th driving wheel 420 ' 460 ', and rope-winding wheel 430 is then meshed in end with the 4th driving wheel 420 '.In addition, the arrangement of the rope-winding wheel 440,450 of both sides Mode is simultaneously limited from the above embodiments, for example, can be tilted in response to the space of upper rail along the width of installing plate 401 Ground arranges.Wherein, the baudrier of drawstring 302 such as second embodiment is consistent, and this will not be repeated here.

In conclusion the Power Component 400 of the utility model is by setting intermeshing drive wheel group 480 and wiring Wheel 430, drawstring 302 are divided into two or more in precalculated position, and drawstring 302 is partially around on rope-winding wheel 430 then successively Along the outer rim of the second rope-winding wheel 450 and the outer rim multiple-turns wound of the first sheave 440 in the second sheave 450 and the first sheave On 440, such a baudrier can realize that the both ends of curtain synchronously drive, and prevent that drawstring folding and unfolding is different when packing up with drop-down curtain Step causes to tilt below curtain.Structure is simpler, operation is more effortless convenient, realizes wirelessization of curtain.Moreover, this practicality New manufacture cost is low, it is easy to assembly, save built-up time and manually, and service life grow, technical requirements are low, suitable for promote Using.

In addition, it is necessary to, it is noted that the drawstring 302 of the both sides of the utility model Power Component 400 preceding part (including rise Beginning) it is wrapped on same rope-winding wheel 430, and the drawstring section 302a for being divided into two sections or more is also being led by simultaneously wound On rope sheave 440,450, therefore, drawstring 302 is in the winding at both ends or disengaging action basic synchronization, folding and unfolding while realizing curtain.

Above disclosed is only the preferred embodiment of the utility model, certainly cannot 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 are covered Scope.

Claims (12)

1. a kind of Power Component, for curtain, the Power Component includes installing plate, is rotatably installed on the installing plate And intermeshing rope-winding wheel and at least one set of drive wheel group, at least the first sheave positioned at the outside of the drive wheel group, And at least one second sheave positioned at the outside of the rope-winding wheel, it is characterised in that：One elastic component is telescopically wound in To provide driving force for the rope-winding wheel in the drive wheel group, the initiating terminal of a drawstring is fixed on the rope-winding wheel, described Drawstring is divided at least two drawstring sections in precalculated position, and at least two drawstring sections are used for blade and and the window for being each passed through curtain The lower rail connection of curtain, in the first operative state, the drawstring are partially around on the rope-winding wheel then successively along described the The outer rim of two sheaves and the outer rim of first sheave are wrapped on second sheave and first sheave, Under second working status, the drawstring departs from along the rope-winding wheel, second sheave and first sheave successively.

2. Power Component as claimed in claim 1, it is characterised in that：The drive wheel group includes the first driving wheel and second and drives Driving wheel, first driving wheel are meshed with second driving wheel, second driving wheel respectively with first driving wheel It is meshed with the rope-winding wheel.

3. Power Component as claimed in claim 2, it is characterised in that：The elastic component is telescopically wound in described first and drives Between driving wheel and second driving wheel, and one end of the elastic component is connected on first driving wheel, the elastic component The other end be connected on second driving wheel.

4. Power Component as claimed in claim 2, it is characterised in that：Second driving wheel includes being used to drive with described first Driving wheel and the meshing flake of rope-winding wheel engagement, the shaft that may be rotatably mounted on the installing plate and it may be rotatably mounted at described Shrapnel wheel in shaft, the elastic component are contained in the shrapnel wheel, and one end of the elastic component and the described first driving Wheel connection, the other end of the elastic component are connected with the shrapnel wheel.

5. Power Component as claimed in claim 1, it is characterised in that：It is each including two groups of drive wheel groups being meshed Drive wheel group includes two driving wheels being meshed, and an elastic component is equipped between the driving wheel being meshed.

6. Power Component as claimed in claim 2, it is characterised in that：First driving wheel includes and second driving wheel The meshing flake of engagement and it may be rotatably mounted at shaft on the installing plate.

7. Power Component as claimed in claim 1, it is characterised in that：First sheave and second sheave can turn It is installed on dynamicly on the installing plate.

8. Power Component as claimed in claim 7, it is characterised in that：In first sheave and second sheave Between be mounted on a bearing, by the bearing, first sheave and second sheave are installed in rotation on institute State on installing plate.

9. Power Component as claimed in claim 1, it is characterised in that：First sheave and/or second sheave Quantity be two.

10. Power Component as claimed in claim 1, it is characterised in that：First sheave and/or second sheave It is upper to form the groove for being used for guiding the drawstring.

11. Power Component as claimed in claim 1, it is characterised in that：The quantity of first sheave and described second is led The quantity of rope sheave is two, and the drawstring includes single drawstring section positioned at preceding part and double drawstring sections positioned at rear part, The list drawstring section is wrapped on the rope-winding wheel, and double drawstring sections lay out from the rope-winding wheel and wind successively along described two The outer rim of second sheave and the outer rim of two first sheaves are wrapped in two second sheaves and two described first and lead Rope sheave, after pre- fixing turn is wound, its one in double drawstring sections is laid out from the first sheave one of them described, described The other of double drawstring sections are laid out from the second sheave one of them described.

12. a kind of curtain, including upper rail, the mobilizable lower rail of relatively described upper rail and multiple blades, and on described Rail is used to drive the blade and the Power Component of the lower rail, it is characterised in that：The Power Component such as claim 1-11 Described in any one.