CN215732585U - Bidirectional random pulling device and bidirectional random pulling data line - Google Patents

Abstract

The utility model relates to the technical field of data lines, in particular to a bidirectional random pulling device and a bidirectional random pulling data line. When the unwrapping wire, the tensile wire rod one end of user, the wire rod is crowded by the crowd under the cooperation of first inside wall and wheel core for the casing is kept away from gradually to the wire rod other end, has solved current two-way flexible data line when tensile wherein one end, and the other end can not be along with corresponding tensile problem, and the simple operation has improved and has used experience.

Description

Bidirectional random pulling device and bidirectional random pulling data line

[ technical field ] A method for producing a semiconductor device

The utility model relates to the technical field of data lines, in particular to a bidirectional random pull device and a bidirectional random pull data line.

[ background of the utility model ]

Along with the continuous improvement of living standard, people often carry electronic product such as cell-phone, computer when going out, for the convenience of charging, people also will carry corresponding data line usually. At present, the conventional data cable is generally a long linear data cable, and the data cable is easy to wind or even tie, so that the retractable data cable appears in the market. However, when one end of the existing bidirectional telescopic data line is stretched, the other end of the existing bidirectional telescopic data line cannot be stretched along with the stretching, and the use is inconvenient.

[ Utility model ] content

The utility model provides a bidirectional random pulling device and a bidirectional random pulling data wire, aiming at solving the problem that when one end of the existing bidirectional telescopic data wire is stretched, the other end of the existing bidirectional telescopic data wire cannot be correspondingly stretched, and the use is inconvenient.

The utility model provides a bidirectional random pulling device, which comprises a shell, a wheel core and a clamping component, wherein the shell is hollow, the wheel core and the clamping component are arranged in the shell, and the wheel core is used for winding wires and rotating relative to the shell; the clamping component is arranged on one side of the shell corresponding to the rotating wheel cover and is matched with the rotating wheel cover to limit the rotation of the wheel core for positioning; a gap exists between the outer periphery of the wheel core and the first inner side wall of the shell, and the gap only allows one layer of wires to pass through; the first inner side wall is a partial side wall with the shortest distance between the side wall of the shell and the wheel core.

Preferably, a transition cavity is arranged between the outer periphery side of the wheel core and the second inner side wall of the shell, and the width of the transition cavity is larger than that of the gap; the second inner side wall and the first inner side wall are adjacent side walls.

Preferably, the second inner side wall is a circular arc-shaped side wall.

Preferably, a through hole for the wire to pass through is formed in the second inner side wall.

Preferably, an edge of the through hole in a thickness direction of the housing is provided with a smooth curved surface.

Preferably, the width of the gap is 1.5-2.5 mm; and/or the width of the transition cavity is 4-10 mm.

Preferably, the housing comprises a first baffle plate, the first baffle plate is arranged between the side wall of the housing and the wheel core, and the first baffle plate and part of the side wall of the housing define the first inner side wall; and/or the shell comprises a second baffle plate, the second baffle plate is arranged between the side wall of the shell and the wheel core, and the second baffle plate and part of the side wall of the shell define the second inner side wall.

Preferably, the clamping assembly comprises an elastic device, a connecting device and a gear, and the runner cover is provided with a runner groove; one end of the connecting device is provided with a bulge matched with the wheel groove, the other end of the connecting device is abutted against the elastic device, one side of the connecting device, which is close to the gear, is also provided with a first lug and a second lug, and the gear is arranged between the first lug and the second lug; two adjacent tooth spaces of the gear have different depths and are respectively defined as a first tooth space and a second tooth space, the first tooth space is meshed with the first lug, and the second tooth space is meshed with the second lug.

The utility model provides another technical scheme for solving the technical problems as follows: a bidirectional random pull data line comprises a wire rod and the bidirectional random pull device; the wire is wound on the wheel core in a multilayer curled mode, and then two ends of the wire are exposed out of the shell.

Preferably, an input port and an output port are respectively arranged at two ends of the wire exposed out of the shell; the output port is one or a plurality of combinations of a MicroUSB interface, a Type-C interface and a Lightning interface.

Compared with the prior art, the bidirectional random pull device and the bidirectional random pull data line provided by the utility model have the following advantages:

1. the bidirectional random pulling device provided by the embodiment of the utility model comprises a shell, a wheel core and a clamping component, wherein the shell is hollow, the wheel core and the clamping component are arranged in the shell, and the wheel core is used for winding a wire and rotating relative to the shell. Wherein, there is the clearance between the wheel core periphery side and the first inside wall of casing, the clearance only allows the one deck wire rod to pass through, can understand, the wire rod winding is that the multilayer curls on the wheel core, and the clearance only allows the setting that the one deck wire rod passes through to make when the unwrapping wire, the tensile wire rod one end of user, the wire rod is crowded under the cooperation of first inside wall and wheel core, make the wire rod other end keep away from the casing gradually, also the user only needs tensile wire rod one end, the other end then can be along with tensile, current two-way flexible data line when tensile wherein one end has been solved, the other end can not be along with corresponding tensile problem, the operation is convenient, use experience has been improved. In addition, wheel core one side is equipped with the runner lid, the screens subassembly locate the casing correspond on the inner wall of runner lid and with the runner lid cooperation, can restrict the wheel core when the unwrapping wire and rotate and fix a position, simultaneously because the effect of the inside elastic component of wheel core is withdrawed the wire rod when receiving the line, further improved and used experience.

2. In the bidirectional random-pulling device provided by the embodiment of the utility model, the transition cavity is formed between the outer peripheral side of the wheel core and the second inner side wall of the shell, the second inner side wall and the first inner side wall are adjacent side walls, the width of the transition cavity is larger than the width of the gap, namely, the wire is provided with a buffering space in the transition cavity, when a user pulls one end of the wire, the wire is firstly bent in the transition cavity and touches the second inner side wall, the second inner side wall gives an acting force to the wire to move along the gap direction between the outer peripheral side of the wheel core and the first inner side wall of the shell, and meanwhile, the first inner side wall and the wheel core are matched to squeeze the wire entering the gap, so that the other end of the wire is gradually far away from the shell, the transition cavity is matched with the gap, the wire is pulled more smoothly, and the pause feeling of the wire during the wire pulling is reduced.

3. In the bidirectional random-pulling device provided by the embodiment of the utility model, the second inner side wall is a circular arc-shaped side wall, and the circular arc-shaped side wall can be matched with the wire bent in the transition cavity, so that when the wire touches the second inner side wall, the acting force given to the wire by the second inner side wall can enable the wire to accurately move along the gap direction between the outer peripheral side of the wheel core and the first inner side wall, and the blocking feeling of the wire during the wire pulling process is further reduced.

4. In the bidirectional random pulling device provided by the embodiment of the utility model, the second inner side wall is provided with the through hole for the wire to pass through, so that the wire is wound on the wheel core and then is exposed out of the shell through the through hole, and the through hole is arranged on the second inner side wall, so that when the wire is discharged out of the shell, the wire has a buffering space in the transition cavity due to the existence of the transition cavity, and the wire is extruded from the gap direction between the outer peripheral side of the wheel core and the first inner side wall and then is smoothly discharged out of the through hole gradually through the buffering of the transition cavity. In addition, the edge of the through hole along the thickness direction of the shell is set to be a smooth curved surface, so that the wire is prevented from being scratched by the edge of the through hole when the wire is contacted with the edge of the through hole, especially when a user pulls out one end of the wire, the acting force of the wire and the edge of the through hole is large, and the smooth curved surface can prevent the wire from being scratched by the edge of the through hole to the maximum extent; secondly, smooth curved surface can play the guide effect, and when the tensile wire rod one end of user, the wire rod makes the wire rod other end keep away from the casing gradually under the guide effect of smooth curved surface.

5. In the bidirectional random-pulling device provided by the embodiment of the utility model, the width of the gap between the outer periphery side of the wheel core and the first inner side wall is limited to 1.5-2.5mm, and in the width range, the gap can be ensured to allow only one layer of wire to pass, and the wire can be extruded under the matching of the first inner side wall and the wheel core when the wire passes through the gap, so that the other end of the wire is gradually far away from the shell. Meanwhile, the width range of the gap enables the overall appearance of the shell to be more attractive, and the bidirectional random pulling device is smaller and more exquisite.

6. In the bidirectional random pulling device provided by the embodiment of the utility model, the width of the transition cavity between the outer peripheral side of the wheel core and the second inner side wall of the shell is limited to 4-10mm, so that a buffer space for bending the wire can be ensured in the width range, the wire can be prevented from being blocked in the transition space due to overlarge buffer space to influence the stretching of the wire, and the smooth degree of the stretching is improved. In addition, the width range of the transition cavity can enable the overall appearance of the shell to be more attractive, and the bidirectional random pulling device is smaller.

7. In the bidirectional random-pulling device provided by the embodiment of the utility model, when the size of the shell is larger, the first baffle plate is additionally arranged between the side wall of the shell and the wheel core, and the first baffle plate and part of the side wall of the shell define the first inner side wall together, so that the purpose of extruding the wire rod entering the gap out of the shell is achieved. Similarly, the second baffle can be additionally arranged between the side wall of the shell and the wheel core, and the second inner side wall is defined by the second baffle and the partial side wall of the shell together, so that the aim of providing a buffer space for the wire rod entering the transition cavity is fulfilled.

8. In the bidirectional random pulling device provided by the embodiment of the utility model, when a user needs to pay off, the user pulls one end of the wire to drive the rotating wheel cover to rotate, meanwhile, the protrusion on the connecting device is separated from the wheel groove and enables the connecting device to deviate from the original position, meanwhile, the elastic device gives a restoring acting force to the connecting device, when the user releases the hand, the elastic part in the wheel core resets to drive the wheel core to rotate and recover the stretched wire, at the moment, the elastic device drives the connecting device to reset, the second protrusion on the connecting device is meshed with the second tooth groove of the gear, the connecting device is fixed, meanwhile, the protrusion of the connecting device swings at a certain angle and stops in the wheel groove of the rotating wheel cover, so that the rotating wheel cover stops rotating, and finally, the wheel core stops rotating to play a role in positioning.

When a user needs to take up wires, the user pulls one end of the wire rod again to drive the rotating wheel cover to rotate again, meanwhile, the protrusion on the connecting device is separated from the wheel groove again to enable the connecting device to deviate from the original position again, meanwhile, the elastic device gives a restoring acting force to the connecting device, when the user releases hands, the elastic part in the wheel core resets, meanwhile, the elastic device drives the connecting device to reset, the first protrusion on the connecting device is meshed with the first tooth groove of the gear, the connecting device is fixed, however, because the depths of the first tooth groove and the second tooth groove are different, when the connecting device is fixed, the swinging angle of the protrusion on the connecting device is larger than the swinging angle of the protrusion during paying off, the protrusion stops outside the wheel groove of the rotating wheel cover and cannot prevent the rotating wheel cover from rotating, finally, the stretched wire rod is completely withdrawn under the action of the elastic part, and the function of one-time taking-up is realized, simple and convenient, and high working efficiency.

9. The bidirectional pull-at-will data line provided by the embodiment of the utility model has the same beneficial effects as the bidirectional pull-at-will device, and is not described in detail herein. In addition, in the bidirectional random pull data line provided by the embodiment of the utility model, the two ends of the wire exposed out of the shell are respectively provided with the input port and the output port, and the output port is one or more combinations of a micro USB interface, a Type-C interface and a Lightning interface, so that especially when the two ports are combined in various ways, the bidirectional random pull data line can be used for charging a plurality of external devices at the same time, and the practicability of the bidirectional random pull data line is greatly improved.

[ description of the drawings ]

Fig. 1 is an exploded view of a bidirectional pull-at-will device according to a first embodiment of the present invention.

Fig. 2 is a schematic perspective view of an elastic member of a bi-directional arbitrary pulling device according to a first embodiment of the present invention.

Fig. 3 is a schematic partial structural diagram of a bidirectional pull-at-will device according to a first embodiment of the present invention.

Fig. 4 is a schematic perspective view of a housing of a bi-directional pull-freely device according to a first embodiment of the present invention.

Fig. 5 is an enlarged schematic view of a in fig. 3.

Fig. 6 is a view showing an example of the engagement between the detent assembly and the wheel core of the bidirectional pull-freely device according to the first embodiment of the present invention.

Fig. 7 is a schematic perspective view of a connection device of a bi-directional pull-freely device according to a first embodiment of the present invention.

Fig. 8 is a schematic perspective view of a gear of a bidirectional casual pulling apparatus according to a first embodiment of the present invention.

Fig. 9 is a schematic perspective view of a bidirectional data line according to a second embodiment of the present invention.

The attached drawings indicate the following:

1. a bidirectional random pulling device; 2. a wire rod; 3. pulling the data line in two directions; 4. a wire rod;

11. a housing; 13. a wheel core; 14. a clamping component; 41. an input port; 42. an output port;

111. an upper shell; 112. a lower case; 113. a gap; 114. a transition cavity; 115. a through hole; 116. fixing a column; 131. an elastic member; 132. a rotating wheel cover; 141. an elastic device; 142. a connecting device; 143. a gear;

1111. a top cover; 1112. a second recess; 1121. a base plate; 1122. a first inner side wall; 1123. a second inner side wall; 1124. a first notch; 1321. a wheel groove; 1421. a protrusion; 1422. a convex column; 1423. a first bump; 1424. a second bump; 1431. a first tooth slot; 1432. a second gullet.

[ detailed description ] embodiments

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "center", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the utility model and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

Referring to fig. 1, a first embodiment of the present invention provides a bidirectional arbitrary pulling device 1, wherein the bidirectional arbitrary pulling device 1 includes ahousing 11, awheel core 13 and alocking component 14. Wherein, casing 11 is inside hollow, andwheel core 13 and screens subassembly 14 are located inside casing 11, andwheel core 13 can supplywire 2 to twine andrelative casing 11 to rotate, and at this moment,wire 2 twines and is the multilayer after curling both ends all expose from casing 11 onwheel core 13, andwheel core 13 is inside to be equipped withelastic component 131, andelastic component 131 is used for providing the resilience of gyration forwheel core 13, and screens subassembly 14 is used for fixing a position in order to prevent thatwheel core 13 from rotating forwheel core 13.

Referring to fig. 1, in particular, thehousing 11 is formed by detachably connecting anupper housing 111 and alower housing 112, theupper housing 111 includes atop cover 1111 and a sidewall extending along the periphery of thetop cover 1111, and thelower housing 112 includes abottom plate 1121 and a sidewall extending along the periphery of thebottom plate 1121. Thewheel core 13 is arranged in thelower shell 112, the clampingassembly 14 is arranged in theupper shell 111, the area enclosed by the side wall of theupper shell 111 is slightly larger than the area enclosed by the side wall of thelower shell 112, and when theupper shell 111 and thelower shell 112 are spliced, the side wall of theupper shell 111 is sleeved on the outer peripheral side of the side wall of thelower shell 112. Of course, when theupper case 111 and thelower case 112 are spliced, the side wall of theupper case 111 may be sleeved on the inner circumferential side of the side wall of thelower case 112, and the utility model is not limited in this respect.

The splicing manner of theupper shell 111 and thelower shell 112 in the embodiment of the present invention is not particularly limited, and may be clamping, bonding, or magnetic connection. Preferably, in the embodiment of the present invention, theupper case 111 and thelower case 112 are spliced by a snap-fit.

Referring to fig. 1 and 2, specifically, theelastic member 131 is a spring, thelower case 112 is provided with a fixingpost 116, one end of the spring is positioned on the fixingpost 116, the other end of the spring is positioned on thecore 13, and when thecore 13 rotates, the spring can give a restoring force to the core 13 so that thecore 13 has a tendency of returning. Of course, theelastic member 131 may be an element having an elastic function, such as a spring block, as long as it can provide a restoring force to make thewheel core 13 have a tendency to return when thewheel core 13 rotates.

For convenience of understanding, the present invention is described by taking the case where the side wall of theupper case 111 is fitted over the outer circumferential side of the side wall of thelower case 112 as an example, and the configuration should not be limited thereto.

Referring to fig. 3, specifically, thelower shell 112 includes two opposite firstinner sidewalls 1122 and two opposite secondinner sidewalls 1123, where the firstinner sidewalls 1122 are the partial sidewalls of thelower shell 112 with the shortest distance from thewheel core 13, and the firstinner sidewalls 1122 and the secondinner sidewalls 1123 are adjacent sidewalls. Agap 113 is provided between the outer peripheral side of thecore 13 and the firstinner side wall 1122, and thegap 113 allows only one layer of thewire 2 to pass therethrough. It can be understood thatwire 2 winding is the multilayer and curls oncore wheel 13, andclearance 113 only allows the setting that onedeck wire rod 2 passes through to make when the unwrapping wire, thetensile wire rod 2 one end of user,wire rod 2 is crowded by the rejection under the cooperation of firstinside wall 1122 andcore wheel 13, make thecasing 11 be kept away from gradually to thewire rod 2 other end, also the user only needstensile wire rod 2 one end, the other end then can be along with tensile, it is when one end wherein stretching to have solved current two-way flexible data line, the other end can not be along with corresponding tensile problem, the operation is convenient, use experience is improved.

Further, atransition cavity 114 exists between the outer peripheral side of thewheel core 13 and the secondinner side wall 1123, and a width W (W shown in fig. 3) of thetransition cavity 114 is larger than a width W (W shown in fig. 3) of thegap 113. Through the setting,wire 2 has the space of buffering intransition cavity 114, when the user stretcheswire 2 one end,wire 2 is crooked and touch second insidewall 1123 intransition cavity 114 earlier, second insidewall 1123 giveswire 2 the effort that moves along the direction of theclearance 113 betweenwheel core 13 periphery side and the firstinside wall 1122, first insidewall 1122 and the cooperation ofwheel core 13 are crowded and are got into thewire 2 ofclearance 113 simultaneously, make thewire 2 other end keep away from casing 11 gradually,transition cavity 114 and the cooperation ofclearance 113, make the drawing ofwire 2 more smooth, the card that reduceswire 2 when tensile feels.

Of course, as a modification, when thehousing 11 is large in size, a first baffle (not shown) may be provided between the side wall of thelower case 112 and thewheel core 13, and at this time, the first baffle and a part of the side wall of thelower case 112 define the firstinner side wall 1122, so as to achieve the purpose of pushing thewire 2 entering thegap 113 out of thehousing 11. Similarly, a second baffle (not shown) may be disposed between the sidewall of thelower shell 112 and thewheel core 13, where the second baffle and a portion of the sidewall of thelower shell 112 define a secondinner sidewall 1123 for providing a buffer space for thewire 2 entering thetransition cavity 114.

Alternatively, the width w of thegap 113 is 1.5-2.5mm, and it can be understood that, in general, the thickness of thewire 2 is about 1.5mm, and by limiting the width of thegap 113, it can be ensured that only one layer of thewire 2 is allowed to pass through thegap 113, and when thewire 2 passes through thegap 113, thewire 2 is squeezed under the cooperation of the firstinner side wall 1122 and thewheel core 13, so that the other end of thewire 2 gradually gets away from thehousing 11. Meanwhile, the width range of thegap 113 can make the overall appearance of thehousing 11 more beautiful, so that the bidirectional pull-up device 1 is smaller. Specifically, the width w of thegap 113 may be 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2mm, 2.1mm, 2.2mm, 2.3mm, 2.4mm, or 2.5 mm. Preferably 2 mm.

Optionally, the width W of thetransition cavity 114 is 4-10mm, and by limiting the width of thetransition cavity 114, a buffer space for bending thewire 2 can be ensured, and thewire 2 can be prevented from being blocked in thetransition cavity 114 due to an excessively large buffer space to affect the stretching of thewire 2, so that the smooth degree of the stretching is improved. In addition, the width of thetransition cavity 114 can make the overall appearance of thehousing 11 more beautiful, so that the bidirectional pull-only device 1 is smaller. Specifically, the width W of thetransition cavity 114 may be 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, or 10 mm. Preferably 5 mm.

Referring to fig. 3, specifically, the secondinner sidewall 1123 is an arc-shaped sidewall, and the arc-shaped sidewall can match with thewire 2 bent in thetransition cavity 114, so that when thewire 2 touches the secondinner sidewall 1123, the force applied by the secondinner sidewall 1123 to thewire 2 can accurately move thewire 2 along the direction of thegap 113 between the outer circumferential side of thewheel core 13 and the firstinner sidewall 1122, and the seizure feeling of thewire 2 during stretching is further reduced.

Specifically, thehousing 11 is an ellipsoid or an ellipsoid-like body, that is, thetop cover 1111 and thebottom plate 1121 are elliptical or an ellipsoid-like body, and on the premise of ensuring overall beauty, when thewheel core 13 is placed inside thehousing 11, a certain difference is formed between the distance between thewheel core 13 and the adjacent inner wall of thehousing 11, wherein a certain buffer space is provided for thewire 2 as thetransition cavity 114 at a larger distance, thewire 2 is extruded out of the housing as thegap 113 at a smaller distance, and meanwhile, the inner wall of the ellipsoid or the ellipsoid-like body is a circular arc-shaped curved surface, so that the blocking and pause feeling of thewire 2 during stretching can be reduced. Of course, thehousing 11 may also be a cylinder, a cube, a sphere, or other shapes, which is not limited in the present invention.

Referring to fig. 1 and fig. 4, further, afirst notch 1124 is formed on a secondinner sidewall 1123 of thelower shell 112, and asecond notch 1112 is formed on theupper shell 111 corresponding to thefirst notch 1124; when theupper shell 111 and thelower shell 112 are spliced, thefirst notch 1124 and thesecond notch 1112 define a throughhole 115, and thewire 2 is wound on thewheel core 13 and then exposed out of theshell 11 through the throughhole 115. Due to the arrangement mode, when thewire 2 is discharged out of theshell 11, due to the existence of thetransition cavity 114, thewire 2 has a buffering space in thetransition cavity 114, and after thewire 2 is extruded from thegap 113, the wire is smoothly and gradually discharged from the throughhole 115 through the buffering of thetransition cavity 114.

Referring to fig. 5, further, the edge of the throughhole 115 along the thickness direction of thehousing 11 is set to be a smooth curved surface q (q shown in fig. 5), that is, the side edge of thefirst notch 1124 is set to be a smooth curved surface q, so as to prevent thewire 2 from being scratched by the edge of the throughhole 115 when thewire 2 contacts the edge of the throughhole 115, especially when a user pulls one end of thewire 2, the force of thewire 2 against the edge of the throughhole 115 is large, and the smooth curved surface q can prevent thewire 2 from being scratched by the edge of the throughhole 115 to the greatest extent; the smooth curved surface q can play a role in guiding, and when a user stretches one end of thewire 2, thewire 2 enables the other end of thewire 2 to be gradually away from theshell 11 under the guiding effect of the smooth curved surface q.

Referring to fig. 6-8, specifically, arotating wheel cover 132 is disposed on one side of thewheel core 13, and the lockingassembly 14 is disposed on one side of thehousing 11 corresponding to therotating wheel cover 132 and cooperates with therotating wheel cover 132 to limit the rotation of thewheel core 13 for positioning.

More specifically, the lockingassembly 14 includes anelastic device 141, a connectingdevice 142 and agear 143, wherein thewheel cover 132 is provided with awheel slot 1321, one end of the connectingdevice 142 is provided with aprotrusion 1421 matching with thewheel slot 1321, the other end of the connectingdevice 142 abuts against theelastic device 141 through aconvex pillar 1422, one side of the connectingdevice 142 close to thegear 143 is further provided with afirst protrusion 1423 and asecond protrusion 1424, and thegear 143 is disposed between thefirst protrusion 1423 and thesecond protrusion 1424. The depth of two adjacent tooth spaces of thegear 143 is different, and the two adjacent tooth spaces are respectively defined as afirst tooth space 1431 and asecond tooth space 1432, thefirst tooth space 1431 is engaged with thefirst protrusion 1423, and thesecond tooth space 1432 is engaged with thesecond protrusion 1424, for the convenience of understanding, the utility model is described by the depth (D shown in fig. 8) of thefirst tooth space 1431 being greater than the depth (D shown in fig. 8) of thesecond tooth space 1432, which should not be construed as a limitation.

The number of thewheel slots 1321, thefirst tooth slots 1431 and thesecond tooth slots 1432 in the embodiment of the present invention is not particularly limited, and specifically, in the embodiment of the present invention, the number of thewheel slots 1321, thefirst tooth slots 1431 and thesecond tooth slots 1432 is 3, so that 3 shift positions for thewire 2 to be stretched outwards can be realized, and different requirements of a user on the wire length can be met.

Alternatively, theelastic means 141 may be a spring or a leaf spring. Specifically, in the embodiment of the present invention, theelastic device 141 is a spring with two ends fixed on theupper shell 111, the middle portion of the spring has an elastic function, and one end of the connectingdevice 142 away from theprotrusion 1421 abuts against the middle portion of the spring through a protrudingpillar 1422.

In summary, when a user needs to pay line, the user pulls one end of thewire 2 to drive thewheel cover 132 to rotate, theprotrusion 1421 on the connectingdevice 142 disengages from thewheel slot 1321 and makes the connectingdevice 142 deviate from the original position, and theelastic device 141 provides a restoring force to the connectingdevice 142, when the user releases his hand, theelastic member 131 inside thewheel core 13 resets to drive thewheel core 13 to rotate and recover the stretchedwire 2, however, theelastic device 141 drives the connectingdevice 142 to reset at this time, thesecond protrusion 1424 on the connectingdevice 142 engages with thesecond tooth slot 1432 of thegear 143, the connectingdevice 142 is fixed, theprotrusion 1421 of the connectingdevice 142 swings through a certain angle, and theprotrusion 1421 stops in thewheel slot 1321 of thewheel cover 132, so that thewheel cover 132 stops rotating, and finally thewheel core 13 stops rotating, and plays a role in positioning.

When the user needs to take up the wire, the user pulls one end of the wire 2 again to drive the wheel cover 132 to rotate again, the protrusion 1421 on the connecting device 142 disengages from the wheel slot 1321 again to make the connecting device 142 deviate from the original position again, at the same time, the elastic device 141 gives a restoring force to the connecting device 142, when the user releases his hand, the elastic member 131 inside the wheel core 13 resets, at the same time, the elastic device 141 drives the connecting device 142 to reset, the first protrusion 1423 on the connecting device 142 engages with the first tooth slot 1431 of the gear 143, the connecting device 142 is fixed, however, since the depth of the first tooth slot 1431 is greater than the depth of the second tooth slot 1432, when the connecting device 142 is fixed, the angle that the protrusion 1421 on the connecting device 142 swings is greater than the angle that the protrusion 1421 swings when the wire is paid off, and the protrusion 1421 stops outside the wheel slot 1321 of the wheel cover 132, the rotation of the wheel cover 132 cannot be prevented, finally, under the action of the elastic part 131, all the stretched wires 2 are retracted, so that the function of one-time wire winding is realized, and the wire winding machine is simple and convenient and has high working efficiency.

Referring to fig. 9, a second embodiment of the present invention provides a bidirectional data cable 3 for data transmission or charging to an external device, where the bidirectional data cable 3 includes a wire 4 and the bidirectional pull-freely device 1 of the first embodiment. Wherein, the wire 4 is wound on the wheel core of the bidirectional random pulling device 1 in a multilayer way, and both ends of the wire are exposed out of the shell of the bidirectional random pulling device 1 after the wire is curled.

Further, one end of the wire 4 exposed out of the casing of the bidirectional random-pulling device 1 is provided with aninput port 41, theinput port 41 is used for connecting a plug or a charging port to receive power or data, the other end of the wire 4 exposed out of the casing of the bidirectional random-pulling device 1 is provided with anoutput port 42, and theoutput port 42 is used for charging external equipment or transmitting data. Specifically, theinput port 41 may be one of a USB interface and a Type-C interface;output port 42 can be one or more combination in micro USB interface, Type-C interface, the Lightning interface, and during the multiple combination especially for two-way data line 3 of pulling at will can charge for a plurality of external equipment simultaneously, has greatly improved the two-way practicality of pulling at will data line 3.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. The bidirectional random pulling device is characterized in that: the bidirectional random pulling device comprises a shell, a wheel core and a clamping component, wherein the shell is hollow, the wheel core and the clamping component are arranged in the shell, and the wheel core is used for winding a wire and rotating relative to the shell;

the clamping component is arranged on one side of the shell corresponding to the rotating wheel cover and is matched with the rotating wheel cover to limit the rotation of the wheel core for positioning;

a gap exists between the outer periphery of the wheel core and the first inner side wall of the shell, and the gap only allows one layer of wires to pass through; the first inner side wall is a partial side wall with the shortest distance between the side wall of the shell and the wheel core.

2. The bi-directional shuffle device as recited in claim 1, further comprising: a transition cavity is arranged between the outer peripheral side of the wheel core and the second inner side wall of the shell, and the width of the transition cavity is larger than that of the gap; the second inner side wall and the first inner side wall are adjacent side walls.

3. The bi-directional shuffle device as recited in claim 2, further comprising: the second inner side wall is an arc-shaped side wall.

4. The bi-directional shuffle device as recited in claim 2, further comprising: and a through hole for the wire to pass through is formed in the second inner side wall.

5. The bi-directional shuffle device as recited in claim 4, further comprising: the edge of the through hole along the thickness direction of the shell is set to be a smooth curved surface.

6. The bi-directional shuffle device as recited in claim 2, further comprising: the width of the gap is 1.5-2.5 mm; and/or the width of the transition cavity of the bidirectional random pulling device is 4-10 mm.

7. The bi-directional shuffle device as recited in claim 2, further comprising: the shell comprises a first baffle plate, the first baffle plate is arranged between the side wall of the shell and the wheel core, and the first baffle plate and part of the side wall of the shell define a first inner side wall;

and/or the shell comprises a second baffle plate, the second baffle plate is arranged between the side wall of the shell and the wheel core, and the second baffle plate and part of the side wall of the shell define the second inner side wall.

8. The bi-directional shuffle device as recited in claim 1, further comprising: the clamping assembly comprises an elastic device, a connecting device and a gear, and a wheel groove is formed in the rotating wheel cover;

one end of the connecting device is provided with a bulge matched with the wheel groove, the other end of the connecting device is abutted against the elastic device, one side of the connecting device, which is close to the gear, is also provided with a first lug and a second lug, and the gear is arranged between the first lug and the second lug; two adjacent tooth spaces of the gear have different depths and are respectively defined as a first tooth space and a second tooth space, the first tooth space is meshed with the first lug, and the second tooth space is meshed with the second lug.

9. A two-way random pull data line, its characterized in that: the bidirectional random access data line comprises a wire and the bidirectional random access device as set forth in any one of claims 1-8; the wire is wound on the wheel core in a multilayer curled mode, and then two ends of the wire are exposed out of the shell.

10. The bidirectional arbitrage data line of claim 9, wherein: two ends of the wire exposed out of the shell are respectively provided with an input port and an output port;

the output port is one or a plurality of combinations of a MicroUSB interface, a Type-C interface and a Lightning interface.

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