CN2483495Y - Improved apparatus for involving screen window - Google Patents

Abstract

The utility model relates to a modified retracting device for rolling curtains, comprising an accommodation device, a scroll arranged inside the accommodation device and rolled with a rolling curtain outside, and a spring device. A first fixed seat is provided with a first cylinder which is sleeved with one end of the spring device. The other end of the spring device is provided with a connection component which is matched with two bumps arranged inside the scroll. Therefore the utility model has a simple and solid structure and low cost.

Description

The roller shutter retracting device of improvement

The utility model relates to a kind of roller shutter retracting device of improvement, is meant a kind of roller shutter retracting device that is used in the improvement of devices such as home-use curtain, automobile sun-shade-curtain and iron rolling door especially.

Press, many automobile sun-shade-curtains, home-use curtain and iron rolling door all are to adopt rollable structure, its with abat vent or iron rolling door device on a spool, then, drive spool by a retracting device again, this retracting device has an elastic force apparatus, and it can drive this spool by the elastic force of elastic force apparatus and produce scrolling, produces the action that abat vent or iron rolling door are packed up to drive this spool.

As shown in Figure 5, the retracting device of abat vent of commonly using or iron rolling door includes a storing apparatus 1, and it is a microscler cylindrical body or a rectangle box body, reaches the end that a central axis 2, one ends are fixed in storing apparatus 1, and the other end is unsettled; An and spool 3, be linked in rotationally on the central axis 2, an end of this spool is provided with a fixed cover 7, and this fixed cover 7 is provided with a projection 8, this projection 8 engages with a breach (not shown) that is arranged on this spool 3, and makes this fixed cover 7 be fixed together with spool 3; Reach a roller shutter 4, one ends and be fixed on this spool 3, when spool 3 rotates, roller shutter 4 can be wound on this spool 3, and this roller shutter 4 is accommodated in this storing apparatus 1 inside; Reach a spring assembly 5, be arranged on the inside of this spool 3, the one end is fixed among the slot 6 of these central axis 2 ends, and the other end is fixed on this fixed cover 7.

When this roller shutter 4 was drawn back, this spring assembly 5 can be tightened by scrolling, and when the user decontrols roller shutter 4,5 of this spring assemblies can drive this fixed cover rotation by its elastic force, then, drive this spool 3 by this fixed cover 7 and produce rotation, and this roller shutter 4 is regained.

Though the retracting device of this kind roller shutter can reach the effect of automatic drawing back roller shutter 4, yet, on using, it has following shortcoming:

At first, the spring assembly 5 that this kind retracting device uses, the mode manufacturing that must adopt spring steel plate to reel forms, and therefore, its structure is quite complicated, and makes difficulty, makes that the whole cost of retracting device is quite expensive; In addition, be connected by fixed cover 7 between the spring assembly 5 of this retracting device and the spool 3, and this fixed cover 7 is when driving spool 3 rotations, the torsion of spool 3 can be concentrated and act on the projection 8, and these projection 8 general plastic materials that adopt are made, therefore, when it bears the torsion of spool 3, be easy to damage, make the elastic force of spring assembly 5 can't drive this spool 3, in addition, when spool 3 scrollings, this central axis 2 bears sizable torsion too, and this central axis 2 only has an end to be plugged on the side walls of storing apparatus 1, therefore, also can be easy to because bear torsion excessive and produce the damage phenomenon that comes off.

Owing to above reason, the cost costliness of the retracting device that uses on feasible abat vent of commonly using and the iron rolling door, and damage easily, therefore, improved necessity is arranged obviously, the inventor in view of this, be to think hard funiculus, active research is engaged in the experience that Related product is researched and developed for many years, and, develop finally and the utility model through constantly test and improvement.

Main purpose of the present utility model is to provide a kind of roller shutter retracting device of improvement, mainly be provided with two salient points that can engage, engage mutually with salient point, and make spring and the mutual interlock of spool by interface components with interface components in the inside of spool, its simple structure, with low cost.

Another purpose of the present utility model is to provide a kind of roller shutter retracting device of improvement, and utilization can be simplified the mounting method and the structure of spring, makes spring and spool and holder not fragile.

The purpose of this utility model is achieved in that a kind of roller shutter retracting device of improvement, it is characterized in that: comprise a storing apparatus, its two end is respectively arranged with first holder and second holder; One spool is arranged at this storing apparatus inside, and two ends are installed on this first, second holder respectively, are hollow circuit cylinder, the roller shutter of reeling outside it; And a spring assembly, an end is connected with this first holder, the other end penetrates this spool inside, and with the mutual interlock of this spool; It is characterized in that: this first holder is provided with first cylinder, and an end of this spring assembly is sleeved on this first cylinder; And this spring assembly end is provided with an interface components; And be provided with two salient points that engage with this interface components in the inside of this spool, and this salient point engages with this interface components.

This interface components is provided with a flat snap-latch piece, and the diameter of this snap-latch piece is greater than the spacing of this two salient point.

This second holder is provided with second cylinder; Two ends of this spool are sleeved on respectively on first cylinder and this second cylinder of this first holder.

The outside of this first, second cylinder is arranged with a convergence set respectively, and this convergence set is sleeved on two ends of this spool.

This first cylinder is provided with an axial clip slot, and this spring assembly is bent with a holding section with the end that this first cylinder engages, and this holding section is sticked among this clip slot.

The end that this interface components engages with this spring assembly is provided with a cylinder, this cylinder and this spring assembly fit, and be provided with an axial clip slot, and the end that this spring assembly engages with this cylinder is bent with a holding section, and this holding section is sticked among the clip slot of this cylinder.

Owing to adopt such scheme: simple structure, firm, with low cost.

The utility model is for reaching above-mentioned and other purpose, and the technological means that it adopted, element and effect thereof are adopted a preferred embodiment now and cooperated correlative type to be described in detail as follows.

Fig. 1 is the combination section of the roller shutter retracting device of improvement of the present utility model.

Fig. 2 is the sectional side view of roller shutter retracting device of the present utility model.

Fig. 3 is the spring assembly and fixing amplification profile of roller shutter retracting device of the present utility model.

Fig. 4 is the amplification profile of the fastened component of the spring assembly that uses on the roller shutter retracting device of the present utility model and spool.

Fig. 5 is the organigram of the roller shutter retracting device that uses on the abat vent commonly used and the iron rolling door.

As shown in Figures 1 and 2, the roller shutter retracting device of improvement of the present utility model, comprising: a storing apparatus 10, general elongated box body, its two end are respectively arranged with a holder 11 and a holder 12, and its top has a long and narrow opening 13; And a spool 20, be arranged at this storing apparatus 10 inside; Reach a spring assembly 30, one ends and be connected on this holder 11, the other end penetrates the inside of this spool 20, and engages mutually with this spool 20: and a roller blind device 40, can be wound on this spool 20.

One end of this roller blind device 40 is connected on this spool 20, the other end passes from the opening 13 of this storing apparatus 10, and be provided with a bracing piece 41 in its end, and on this bracing piece 41, be provided with one and draw ear, can successfully this roller blind device 40 be pulled out in this storing apparatus 10 for the user, this roller blind device 40 does not furl on this spool 20 when not using, and is concealed in this storing apparatus 10 inside; And this spring assembly 30 is when this roller blind device 40 is drawn out, can be driven by the spinning movement of this spool 20, and quilt is towards the direction driven rotary that screws, and after the user decontrols roller blind device 40, then can be by the elastic force of these spring assembly 30 storages, this spool 20 is driven towards opposite direction, and this roller blind device 40 is wound on this spool 20 again.

Shown in Fig. 1,3, this spool 20 is the circular body of a hollow, its two end is sleeved on two cylinders 111,121 that are separately positioned on the holder 11,12, and on this two cylinder 111,121, be arranged with a convergence set 14,15 again respectively, the slightly larger in diameter of this two convergence set 14,15 is in the external diameter of this spool 20, and makes two ends of this spool 20 can be sleeved on this two convergence set 14,15; This storing apparatus 10 and two holders 11,12 during with spool 20 assembling, earlier with two convergence sets 14,15 are linked in cylinder 111 earlier, on 121, then, with this two holder 11 (or holder 12) wherein one be linked in an end of storing apparatus 10 after, again spool 20 is inserted from these storing apparatus 10 untight ends, and make an end of spool 20 be inserted on this convergence set 15, then, again the cylinder 121 of holder 12 (or holder 11) is aimed at the other end of spool 20 with convergence set 15, then, this fixed seating is combined in the other end of this storing apparatus 10, just this spool 20 can be installed on the inside of this storing apparatus 10.

As shown in Figures 2 and 3, the spring assembly 30 that the utility model uses is located in the inside of spool 20, one end of this spring assembly 30 is set on the cylinder 111 of holder 11, the center of this cylinder 111 is provided with a clip slot 112, and this spring assembly 30 and the least significant end of an end of these cylinder 111 fits are provided with the location division 33 of a level, this location division 33 can be inserted into this clip slot 112 in.The diameter of this spring assembly 30 is slightly less than the diameter of cylinder 111, therefore, behind itself and cylinder 111 fits, can clamp cylinders 111, and can't break away from cylinder 111.

And the end of this spring assembly 30 is provided with an interface components 31, and as shown in Figures 3 and 4, the end of this interface components 31 is provided with a snap-latch piece 32; Middle section position in this spool 20 is provided with two inwardly outstanding salient points 21 simultaneously, this two salient point 21 is arranged on the position that can engage with this snap-latch piece 32, therefore, make when this reel device produces relative rotation with this spring assembly 30, this snap-latch piece 32 can engage with this two salient point 21, therefore, make this spring assembly 30 to drive spool 20 rotations by this interface components 31, otherwise, when spool 20 rotations, also can drive this interface components 31, reverse and make this spring assembly 30 be driven generation by this two salient point.

As shown in Figure 3, this interface components 31 is provided with a cylinder 34 with an end of these spring assembly 30 fits, this cylinder 34 can be sleeved on the end of this spring assembly 30, and be provided with a clip slot 35 in this cylinder 34, in the end of this spring assembly 30 with this cylinder cover unification end, also be provided with the holding section 36 of a level, this holding section 36 is sticked in this clip slot 35, and makes this spring assembly 30 can't relatively rotate with this interface components 31.

This spring assembly 30 is fashionable with these cylinder 34 covers, earlier this holding section 36 is snapped onto the end of clip slot 35, then, spring assembly 30 is rotated towards the direction opposite with its spiral, after making that the diameter of spring assembly 30 amplifies slightly, again with spring assembly 30 whole inside promotions, just can be so that spring assembly 30 whole being nested on the cylinder 34, then, loosen this spring assembly, this spring assembly 30 just can clamp cylinder 34 by its elastic force, and this spring assembly 30 is similar with the assembling mode of cylinder 111 with assembling mode and this spring assembly 30 of this interface components 31.

The utility model is compared to the sunshading curtain winding device of commonly using, and its major advantage is as follows:

1, with regard to structure and cost:

The spring assembly 30 that the utility model uses can adopt general helical spring, therefore, it can directly select standard items on the market for use, and must be not customized in addition, its cost greatly reduces, and its center must not wear backstay, therefore, make unitary construction of the present utility model greatly simplify, and cost greatly reduce.

2, with regard to the simplification of assembly working:

When storing apparatus 10 of the present utility model, holder 11,12, spool 20, spring assembly 30 and interface components 31 make up, all can be directly with artificial directly fit, and do not need to use special instrument, therefore, make assembly working of the present utility model quite simple, and quite quick, make the utility model significantly to save labour turnover and increase speed of production.

3, with regard to the intensity and application life of structure:

Spring assembly 30 of the present utility model is linked on the cylinder 111 of holder 11, and cylinder 111 is integrally formed with holder 11, and this spring 30 clamps these cylinders 111, therefore, makes this cylinder 111 can bear these spring assembly 30 great torsion and can not damage.Simultaneously, between this spring assembly 30 and the spool 20 with interface components 31 and salient point 21 mutual interlocks, and the snap-latch piece 32 of this interface components 31 and be not easy to be damaged, make this spring assembly 30 can firmly be fastened togather with this spool 20, therefore, make to the utlity model has splendid structural strength, and application life is considerably long.

Claims (6)

1, a kind of roller shutter retracting device of improvement is characterized in that: comprise a storing apparatus, its two end is respectively arranged with first holder and second holder; One spool is arranged at this storing apparatus inside, and two ends are installed on this first, second holder respectively, are hollow circuit cylinder, the roller shutter of reeling outside it; And a spring assembly, an end is connected with this first holder, the other end penetrates this spool inside, and with the mutual interlock of this spool; It is characterized in that: this first holder is provided with first cylinder, and an end of this spring assembly is sleeved on this first cylinder; And this spring assembly end is provided with an interface components; And be provided with two salient points that engage with this interface components in the inside of this spool, and this salient point engages with this interface components.

2, the roller shutter retracting device of improvement as claimed in claim 1 is characterized in that: this interface components is provided with a flat snap-latch piece, and the diameter of this snap-latch piece is greater than the spacing of this two salient point.

3, the roller shutter retracting device of improvement as claimed in claim 1 is characterized in that: this second holder is provided with second cylinder; Two ends of this spool are sleeved on respectively on first cylinder and this second cylinder of this first holder.

4, the roller shutter retracting device of improvement as claimed in claim 2, it is characterized in that: the outside of this first, second cylinder is arranged with a convergence set respectively, and this convergence set is sleeved on two ends of this spool.

5, the roller shutter retracting device of improvement as claimed in claim 1 is characterized in that: this first cylinder is provided with an axial clip slot, and this spring assembly is bent with a holding section with the end that this first cylinder engages, and this holding section is sticked among this clip slot.

6, the roller shutter retracting device of improvement as claimed in claim 1, it is characterized in that: the end that this interface components engages with this spring assembly is provided with a cylinder, this cylinder and this spring assembly fit, and be provided with an axial clip slot, and the end that this spring assembly engages with this cylinder is bent with a holding section, and this holding section is sticked among the clip slot of this cylinder.

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