CN2909605Y

CN2909605Y - Automatic winding structure

Info

Publication number: CN2909605Y
Application number: CN 200620056476
Authority: CN
Inventors: 蔡友华
Original assignee: Mitac Precision Technology Shunde Ltd
Current assignee: Mitac Precision Technology Shunde Ltd
Priority date: 2006-03-20
Filing date: 2006-03-20
Publication date: 2007-06-06
Anticipated expiration: 2016-03-20

Abstract

The utility model discloses an automatic wire coiling structure, comprising lower cover, clockwork spring, plastic core, elastic element, press keys and upper cover. The clockwork spring is arranged on the lower cover and the terminals inside the clockwork spring are fixed in the centre of the lower cover. The plastic core is laid on the clockwork spring and the terminals outside the clockwork spring are fixed on the plastic core. And the plastic core is also provided with the first cylinder surface for winding the wires and the second cylinder surface for embedding the press keys. The second cylinder surface and the press keys are respectively equipped with several first and second wedge-shaped blocks which could be matched. The elastic element is arranged between the keys and the between the plastic core. The sealing will be formed when the upper cover covers on the lower cover. The automatic wire coiling structure provided by the utility model adopts elastic deformational force generated by the clockwork spring when the wires stretching to offer power for the automatic wire coiling and uses the active embedding relationship between the plastic core and press keys to control whether to lock the automatic wire coiling structure to stop automatic wire coiling.

Description

Automatic spiral structure

Technical field

The utility model relates to and a kind ofly can choose at random the structure of pulling out length in the conductor length scope.

Background technology

Along with the quick growth of consumption electronic products, the consumer is more and more frequent to the use of various data lines, and is simultaneously also more and more exquisite.At present main data line such as transmission lines such as USB, IEEE1394 are commonly lead and loose and be exposed, need take off the little belt of binding lead during use, and binding again after using up, its shortcoming has:

1, lead exposes and is messy, and knotting damages lead easily;

2, keeping trouble need tie keeping to lead when not using;

3, carry inconvenience, because lead exposes and easily loose, so institute takes up space greatly.

Occurred a kind of data line that can stretch automatically thus on the market, but its shortcoming is lead to be stretched to the limit, this data line retraction automatically when regaining lead.

Summary of the invention

The purpose of this utility model is to provide a kind of automatic spiral structure, it can arbitrarily stretch lead in the conductor length scope the length of pulling out.

For reaching above-mentioned purpose, the utility model adopts following technical scheme, promptly a kind of automatic spiral structure, and it comprises lower cover, clockwork spring, glue core, lead, flexible member, button, loam cake.

This lower cover can be a plectane, its edge is formed with an extension makes this lower cover have a spatial accommodation, this clockwork spring is positioned in this lower cover, this clockwork spring inner terminal is fixed in this lower cover center, this glue core is positioned on this clockwork spring, this glue core also can be a circular flat board, the bottom surface that this glue core and this clockwork spring contact-making surface are this glue core, this clockwork spring outer terminal then is fixed in this bottom edge, the end face center that this glue core another side is the glue core is provided with one first groove, outer rim also is disposed with one first face of cylinder to this end face by the center, one second face of cylinder, this first face of cylinder medial surface is provided with some first wedges, this second face of cylinder is provided with in order to twine some breach of above-mentioned lead, this lead is wrapped on this second face of cylinder by the breach that this second face of cylinder is provided with, it should be noted that, the winding direction that this lead is clockwise or counterclockwise should be consistent with the winding direction of this clockwork spring in this lower cover, and two outlet terminals of this lead then line outlet of the extension setting by above-mentioned lower cover stretch out in this lower cover.

In addition, above-mentioned button is the square shape, it is assemblied in this first face of cylinder, its side also is provided with some second wedges, this second wedge and the above-mentioned first wedge direction can cooperatively interact on the contrary, the setting of this first wedge and this second wedge should guarantee that above-mentioned glue core is when above-mentioned lead winding direction rotates, the contact-making surface of this first wedge and this second wedge is the two inclined-plane, this button bottom also is provided with one second groove, above-mentioned flexible member is positioned in the middle of this second groove and above-mentioned first groove, the one end contacts at this second groove, the other end then contacts at this first groove, and is last, and above-mentioned loam cake is covered on the extension that covers under this and forms sealing, this loam cake middle part is provided with square through hole, and above-mentioned button activity is embedded in this through hole.

So, when outwards stretching this lead, this lead will drive this glue core and rotate along this lead winding direction, because the winding direction of this lead and the winding direction of this clockwork spring are consistent, thereby this glue core drive is also compressed this clockwork spring, and this glue core turns to this first wedge when contacting this second wedge, this second wedge is subjected to the compressing of this first wedge that this button will be descended and near the end face of this glue core, this moment, this flexible member was in compressive state, the compressing that this second wedge is subjected to this first wedge will force this button to rotate along glue core rotation direction simultaneously, but this button is owing to be embedded in this loam cake so can not rotate, when this first wedge slips over this second wedge, compressing from this first wedge on this second wedge disappears, so this button is in the elastic acting force of this flexible member of compressive state rising is returned back to original position.

When lead is stretched to certain-length, if stop this lead that outwards stretches, because this clockwork spring is in elastic compression at this moment, this clockwork spring will force the backward rotation of this glue core along this lead winding direction, when the first wedge backward rotation touches this second wedge, because this moment, the contact-making surface of this first wedge and this second wedge was a vertical plane, so this first wedge will be hampered by this second wedge, this glue core will stop operating, this lead will stop to shrink, if this lead is shunk, can press this button, after this second wedge descended, this first wedge promptly lost resistance, and this glue core will be rotated further under the effect of this clockwork spring to shrink this lead.

Adopt technique scheme, the utlity model has following advantage:

1, part is few, and is simple in structure, easy to assembly;

2, automatic spiral can choose at random tensile elongation in the conductor length scope;

3, easy to use, need not be stretched to the limit to lead could shrink automatically, and need only click the button lead can shrink automatically.

Description of drawings

Fig. 1 is the parts explosive view of the automatic spiral structure of the utility model.

Fig. 2 is the lower cover of automatic spiral structure of the utility model and the matching relationship schematic perspective view of clockwork spring.

Fig. 3 is the glue core bottom surface of automatic spiral structure of the utility model and the matching relationship schematic perspective view of clockwork spring.

Fig. 4 is the glue core end face schematic perspective view of the automatic spiral structure of the utility model.

Fig. 5 is the button schematic perspective view of the automatic spiral structure of the utility model.

Fig. 6 is the button of automatic spiral structure of the utility model and the matching relationship schematic perspective view of glue core.

Fig. 7 is a stereoscopic schematic diagram after the combination of automatic spiral structure of the utility model.

Embodiment

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

Consult shown in Figure 1, it is the parts explosive view of the automatic spiral structure of the utility model, this automatic spiral structure comprises lower cover 100, clockwork spring 200, glue core 300, lead 400, flexible member 600, button 700, loam cake 800, in present embodiment, this automatic spiral structure also comprises two anti-attrition paper 500, please cooperate consult shown in Figure 2, this lower cover 100 is a plectane, this lower cover frontside edge is formed with an extension 110 makes this lower cover 100 have a spatial accommodation, this extension 110 is provided with a line outlet 120, these lower cover 100 centers are provided with a fixed leg, this fixed leg is provided with holddown groove, this clockwork spring 200 is positioned in this lower cover 100, these clockwork spring 200 inner terminal closely are embedded in the holddown groove on this fixed leg, thereby these clockwork spring 200 inner terminal are fixed in this lower cover 100 centers, and the winding direction of this clockwork spring 200 in this lower cover 100 is clockwise direction in this real mode, in this real mode, this glue core 300 is a circular flat board, it is positioned on this clockwork spring 200, this glue core 300 is the bottom surface 310 of glue core 300 with the contact-making surface of this clockwork spring 200, please cooperate consult shown in Figure 3, these 310 edges, bottom surface are provided with a face of cylinder 311, this face of cylinder 311 is provided with a breach, the outer terminal of this clockwork spring 200 closely is embedded on this breach, thereby the outer terminal of this clockwork spring 200 is fixed in this bottom surface 310 edges.

Please cooperate in addition consult shown in Figure 4, the another side of this glue core 300, be that end face 320 centers are provided with one first groove 324, outer rim also is disposed with one first face of cylinder 321 by the center for this end face 320, one second face of cylinder 322, in present embodiment, these first face of cylinder, 321 medial surfaces are provided with 4 first wedges 323, this second face of cylinder 322 is provided with in order to twine four breach of this lead 400, this lead 400 is wrapped on this second face of cylinder 322 by this breach, and the winding direction of this lead 400 is consistent with the winding direction of this clockwork spring 200 in this lower cover 100, this lead 400 is all clockwise direction with the winding direction of this clockwork spring mainspring 200 in present embodiment, the two-terminal of this lead 400 then will be stretched out by above-mentioned line outlet 120, in addition, for the stretching that makes this lead 400 or shrink smooth and easyly, this lead also can card be enclosed and is stated this two anti-attritions paper 500 in both sides about in the of 400.

Please cooperate again consult shown in Figure 5, this button 700 is the square shape, in present embodiment, these button 700 sides are provided with 4 second wedges 710, cooperation is simultaneously consulted shown in Figure 6, this button 700 is assemblied in this first face of cylinder 321, above-mentioned flexible member 600 1 ends contact at this first groove 324 that these end face 320 centers are provided with, the other end then contacts at the one second groove (not shown) that these button 700 bottoms are provided with, at last, above-mentioned this loam cake 800 is covered on the extension 110 of this lower cover 100 and forms sealing, these loam cake 800 middle parts also are provided with a square through hole corresponding to the position of this button 700, these button 700 activities are embedded in this through hole, as shown in Figure 7, thereby, when outwards stretching this lead 400 by line outlet 120, this lead 400 will drive this glue core 300 and clockwise rotate, also see also shown in Figure 6, when this glue core 300 clockwise rotates these first wedge, 323 these second wedges 710 of contact, this first wedge 323 will along this first, second wedge 323,710 inclined-planes that match slip over this second wedge 710, and in sliding process, this button 700 since this first, two wedges 323,710 matching relationship will have decline promptly near this end face 320 and two trend that clockwise rotate, but this button 700 is again owing to not rotating in this through hole that is embedded in these loam cake 800 settings, so this button 700 is forced to will descend promptly near this end face 320 in this first wedge 323, so this moment, elastic deformation will take place in this flexible member 600.After this first wedge 323 slipped over this second wedge 710, the effect that this button 700 is in elastically-deformable this flexible member 600 returned back to original position with rising.

This glue core 300 clockwise rotates in the process, it will drive and compress this clockwork spring 200 that twines clockwise, so when after this lead 400 is stretched to certain-length, stopping to stretch, this glue core 300 no longer is subjected to the traction of this lead 400 and only is in the effect of the clockwork spring 200 of elastic compression, therefore this glue core 300 will rotate counterclockwise, when glue core 300 turns to these first wedge, 323 these second wedges 710 of contact, since this moment this first, two wedges 323,710 contact-making surface is the two vertical plane, so this first wedge 323 will be hampered by this second wedge 710, thereby this glue core 300 will stop operating, promptly this lead 400 also will stop to shrink, if will make this lead 400 continue to shrink, promptly must eliminate the resistance of 710 pairs of these first wedges 323 of this second wedge, therefore as long as press this button 700 with hand, this glue core 300 is subjected to the effect of this clockwork spring 200 will continue to shrink.

Claims

1. automatic spiral structure, it comprises lower cover, clockwork spring, the glue core, lead, flexible member, button, loam cake, this lower cover edge is formed with an extension makes this lower cover have a spatial accommodation, this clockwork spring is positioned in this lower cover, this clockwork spring inner terminal is fixed in this lower cover center, this glue core is positioned on this clockwork spring, the bottom surface that this glue core and this clockwork spring contact-making surface are the glue core, this clockwork spring outer terminal then is fixed in this bottom edge, the end face center that this glue core another side is the glue core is provided with one first groove, outer rim also is disposed with one first face of cylinder to this glue core end face by the center, one second face of cylinder, this first face of cylinder medial surface is provided with some first wedges, this second face of cylinder is provided with in order to twine some breach of above-mentioned lead, this lead is wrapped on this second face of cylinder by the breach that this second face of cylinder is provided with, two outlet terminals of this lead then line outlet of the extension setting by above-mentioned lower cover stretch out in this lower cover, this button is the square shape, it is assemblied in this first face of cylinder, its side also is provided with some second wedges, this second wedge and the above-mentioned first wedge direction can cooperatively interact on the contrary, this button bottom also is provided with one second groove, above-mentioned flexible member is positioned in the middle of this second groove and above-mentioned first groove, the one end contacts at this second groove, the other end then contacts at this first groove, this loam cake is covered on the extension that covers under this and forms sealing, this loam cake middle part is provided with square through hole, above-mentioned button activity is embedded in this through hole, it is characterized in that:

Described lead is wrapped in the winding direction on this second face of cylinder should be consistent with the winding direction of this clockwork spring mainspring in this lower cover;

When described glue core rotated along the winding direction of this lead, the contact-making surface of this first and second wedge was the two inclined-plane.

2. automatic spiral structure according to claim 1 is characterized in that: described lower cover is a plectane.

3. automatic spiral structure according to claim 1 is characterized in that: described glue core is a plectane.

4. automatic spiral structure according to claim 1 is characterized in that: described flexible member is a spring.

5. automatic spiral structure according to claim 1 is characterized in that: described automatic spiral structure also comprises two anti-attrition paper, and this anti-attrition paper is positioned at this lead both sides.

6. automatic spiral structure according to claim 1 is characterized in that: described first face of cylinder is provided with 4 first wedges.

7. automatic spiral structure according to claim 1 is characterized in that: described second face of cylinder is provided with four breach.

8. automatic spiral structure according to claim 1 is characterized in that: described button side is provided with 4 second wedges.

9. automatic spiral structure according to claim 1 is characterized in that: described lower cover center is provided with a fixed leg, and this fixed leg is provided with holddown groove, and above-mentioned clockwork spring inner terminal closely is embedded in this holddown groove.

10. automatic spiral structure according to claim 1, it is characterized in that: described bottom surface is provided with the face of cylinder, and this face of cylinder is provided with a breach, and above-mentioned clockwork spring outer terminal closely is embedded in this breach.