CN201021594Y

CN201021594Y - An automatic expansion and collapsible curtain

Info

Publication number: CN201021594Y
Application number: CNU200720049236XU
Authority: CN
Inventors: 林宗福
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-03-10
Filing date: 2007-03-10
Publication date: 2008-02-13
Anticipated expiration: 2017-03-10

Abstract

The utility model relates to the technology field of window curtains in particular to a window curtain that can roll up automatically, and consists of an upper rail, a curtain body and a pull. The upper end of the curtain body is fixed on the upper rail. One end of the pull is tied and connected with the lower end of the curtain body and the other end of the pull is penetrated upward into the upper rail and wound on a thread-winding wheel after being guided by a plurality of guide pulleys. The thread-winding wheel needs at least one drive thread to drive a wind-up pull, but the other end of the drive thread is wound on a drive wheel and the drive wheel is controlled by a torsion coil spring. The pull is wound up on the thread-winding wheel and the thread-winding wheel is connected with the drive wheel through an odditional drive thread. When working, the drive wheel winds up single thread body, and has a good synchronicity and enhances the consistency of winding up by multiple pulls, thereby achieving a smooth rolling up and drooping for the curtain body. The pull lacks an exposed suspending part, therefore the utility model has a good security and can efficiently avoid the danger that a child may suffer from suffocation by winding and tightening the pull around the neck out of curiosity.

Description

A kind of curtain that folds automatically

Technical field:

The utility model relates to the curtain technical field, refers in particular to a kind of curtain that can fold automatically.

Background technology:

Curtain mainly is to provide the effect of sunshade with the protection privacy in modern room, as the roman shade of commonly using, and it includes a rail and a casement on one, and the bottom of casement and last rail is connected and fixed.Usually an end of going up rail is combined with a stay cord brake component, and the stay cord brake component can pass and make the side of an end lowering of stay cord at casement for stay cord, spurs for the user; The other end of stay cord then is fixed in the casement lower end, makes it casement up to be folded or lowering downwards by the pulling of stay cord.This dragline type curtain has operation inconvenience in the use, casement rolling effort, and stay cord is arbitrarily hung and inaesthetic defective.

Have subsequently do not need to spur fold curtain automatically, the power end of its stay cord is directly connected on the driving wheel, this driving wheel drives the rolling stay cord by the torsion wind spring, thereby realizes folding automatically of casement.And general curtain has the stay cord more than two or two, and there is poor synchronization in many stay cord rollings simultaneously on driving wheel, and an end height, phenomenon that an end is low very easily appear in casement rolling imbalance.The producer that has subsequently is in order to overcome above-mentioned defective, with the power end of many stay cords is to be connected together then to be pulled and supported by a line segment, and this line segment of the direct rolling of driving wheel, can utilize single line segment rolling to replace the rolling of many stay cords like this, synchronism improves, but structural deficiency, the continuity of rolling is not good, and the action of curtain rolling is smooth and easy inadequately.

Summary of the invention:

The purpose of this utility model is to overcome the defective of prior art, and a kind of curtain body rolling balance is provided, and stay cord rolling action is smooth and easy, and synchronism is good folds curtain automatically.

Another purpose of the utility model is to provide a kind of simple in structure, and processing and fabricating folds curtain easily automatically.

For achieving the above object, automatically the curtain that folds described in the utility model, comprise rail, curtain body and stay cord, curtain body upper end is fixed on the rail, and the lower end freedom of curtain body is sagging, is provided with several vertical perforation that distributes at the curtain body back side, and stay cord one end system is connected to the lower end of curtain body, the stay cord other end upwards extend and pass on the curtain body corresponding perforation successively after penetrate in the rail, the upper end of stay cord penetrates in the rail and is taken turns by several slide guides and is wound in a reel after guiding; Reel drives the rolling stay cord by a drive wire at least, and the other end of drive wire is wound on the driving wheel, and driving wheel is controlled by the torsion wind spring.

Described reel is by two application of force or oppositely drive wire drivings of the application of force in the same way, and two drive wires are respectively by different drive wheel.

Described reel is arranged on the middle section position of rail; Reel is provided with independently, and wire casing supplies the drive wire winding.

The additional rib that several horizontally sets are arranged of the low end of described curtain body is having the vertical rod section to connect qualification up and down between the rib.

The contrast prior art, the utility model is by setting up a reel, the stay cord rolling is on reel, reel then is connected with driving wheel by additional drive wire, like this during drive wheel works rolling be the solid wire body, synchronism is good, improves many stay cord rolling uniformity, thereby realize the curtain body comparatively smooth fold or sagging, improve the curtain functional performance.

Another advantage of the utility model is structural good, effectively prolong the application life of torsion wind spring, and processing and fabricating is easy, and cost is low.

The utility model advantage again is the back side that stay cord is concealed in the curtain body fully, and promptly stay cord does not expose the part of suspension, thereby can effectively avoid child's curiosity to play and overlap and rein in the danger that neck is suffocated, and safety is good, is a kind of safer novel product.

Description of drawings:

Accompanying drawing 1 is the utility model front schematic view;

Accompanying drawing 2 is the utility model schematic rear view;

Accompanying drawing 3 is the utility model STRUCTURE DECOMPOSITION schematic diagram;

Accompanying drawing 4 is the utility model one coiling embodiment schematic diagram;

Accompanying drawing 5 is its two coiling of the utility model embodiment schematic diagram.

The specific embodiment:

Below in conjunction with accompanying drawing the utility model is described further:

See shown in the accompanying drawing 1～5 that the utility model mainly comprises rail 1, curtain body 2 and stay cord 3, last rail 1 middle part hollow out is " U " shape, provides the installing space of other parts with this.Curtain body 2 upper ends are fixed on the rail 1, and the lower end freedom of curtain body 2 is sagging, be provided with several vertical perforation 21 that distributes at curtain body 2 back sides, stay cord 3 one ends system is connected to the lower end of curtain body 2, stay cord 3 other ends upwards extend and pass on the curtain body 2 corresponding perforation 21 successively after penetrate in the rail 1, the upper end of stay cord 3 penetrates in the rail 1 and takes turns 4 by several slide guides and is wound in a reel 5 after guiding; Reel 5 drives rolling stay cord 3 by a drive wire 6 at least, and the other end of drive wire 6 is wound on the driving wheel 7, and driving wheel 7 is by 8 controls of torsion wind spring.Slide guide wheel 4, reel 5, driving wheel 7 and torsion wind spring 8 are installed in the installing space of rail 1.

In the present embodiment, reel 5 is by two application of force or oppositely drive wire 6 drivings of the application of force in the same way, and two drive wires 6 are driven by different driving wheel 7 respectively.Shown in Fig. 3,4, reel 5 is driven by the drive wire 6 of two reverse application of forces, and at this moment a drive wire 6 is used to drive reel 5

rolling stay cords

3, and 6 of another drive wires are used for the auxiliary stay cord 3 that loosens, two drive wire 6 relative engagement play steady effect, improve the stability of the action of folding and unfolding stay cord 3.Shown in Figure 5, in the present embodiment, reel 5 is by two drive wire 6 drivings of the application of force in the same way, and two drive wires 6 all are used to drive reel 5 rolling stay cords 3, increase the dynamics of take-up, can prevent that the curtain body 2 that folds from arbitrarily gliding.

In the present embodiment, reel 5 is arranged on the middle section position of rail 1, and reel 5 is provided with independently wire casing for drive wire 6 windings, prevents that drive wire 6 and stay cord 3 from interfering rollings mutually or loosen, also effectively limit drive wire 6 in certain zone, improve the stationarity that reel 5 rotates.Slide guide wheel 4 has guiding and supports the effect of stay cord 3, so that stay cord 3 folding and unfoldings are smooth and easy.

Shown in Fig. 1,2, the additional rib 22 that several horizontally sets are arranged of the low end of curtain body 2 is having vertical rod section 23 to connect qualification up and down between the rib 22.Rib 22 and vertical rod section 23 have the curtain of increasing the weight of body 2 lower ends and improve curtain body 2 lower end verticality, so that improve the synchronism of folding and unfolding.

When using the utility model, direct drop-down curtain body 2 can realize that curtain opens and uses, and at this moment reel 5 rotates and goes back the drive wire 6 of automatic winding correspondence when emitting stay cord 3, corresponding 7 passive part drive wires 6 of emitting of driving wheel, torsion wind spring 8 then is subjected to the effect of driving wheel 7 and oppositely accumulation of energy, utilize the deadweight of curtain body 2 and the mutual principle for balance of reverse accumulation of energy of torsion wind spring 8, the height that curtain body 2 is transferred arbitrarily can be located.And go up when receiving curtain body 2, apply an external force gently up on curtain body 2, the pulling force of stay cord 3 lower ends diminishes, and rotating drive wheel 7 comes rolling respective drive line 6 under the effect of the reverse accumulation of energy of torsion wind spring 8, drive wire 6 spurs reel 5 then and comes rolling stay cord 3, thereby realizes folding curtain.What the driving wheel 7 of the utility model drove when work is single line body, and stable action and synchronism are good, improves the functional performance that curtain folds automatically.

Claims

1. one kind folds curtain automatically, comprise rail (1), curtain body (2) and stay cord (3), curtain body (2) upper end is fixed on the rail (1), and the lower end freedom of curtain body (2) is sagging, be provided with several vertical perforation (21) that distributes at curtain body (2) back side, stay cord (3) one ends system is connected to the lower end of curtain body (2), stay cord (3) other end is upwards extended and passed successively and penetrates in the rail (1) after curtain body (2) is gone up corresponding perforation (21), it is characterized in that: the upper end of stay cord (3) penetrates in the rail (1) and is taken turns by several slide guides and is wound in a reel (5) after guide (4); Reel (5) drives rolling stay cord (3) by a drive wire (6) at least, and the other end of drive wire (6) is wound on the driving wheel (7), and driving wheel (7) is controlled by torsion wind spring (8).

2. a kind of curtain that folds automatically according to claim 1 is characterized in that: described reel (5) is by two application of force or oppositely drive wire (6) drivings of the application of force in the same way, and two drive wires (6) are driven by different driving wheel (7) respectively.

3. a kind of curtain that folds automatically according to claim 1 and 2, it is characterized in that: described reel (5) is arranged on the middle section position of rail (1).

4. a kind of curtain that folds automatically according to claim 1 and 2 is characterized in that: described reel (5) is provided with independently wire casing confession drive wire (6) winding.

5. a kind of curtain that folds automatically according to claim 1 is characterized in that: the additional rib (22) that several horizontally sets are arranged of the low end of described curtain body (2) is having vertical rod section (23) to connect qualification up and down between the rib (22).